Patent Publication Number: US-2022232897-A1

Title: Additive assembly for electronic vaping device

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of U.S. application Ser. No. 16/252,909, filed Jan. 21, 2019, which is a continuation under 35 U.S.C. § 120 of U.S. application Ser. No. 15/204,361, filed Jul. 7, 2016, the entire contents of each of which is incorporated herein by reference. 
    
    
     BACKGROUND 
     Field 
     The present disclosure relates to electronic vaping and/or e-vaping devices. 
     Description of Related Art 
     E-vaping devices, also referred to herein as electronic vaping devices (EVDs) may be used by adult vapers for portable vaping. Flavored vapors within an e-vaping device may be used to deliver a flavor along with the vapor that may be produced by the e-vaping device. The flavored vapors may be delivered via a flavor system. 
     In some cases, a loss of flavoring in a flavored vapor from a flavor system may occur when the flavor system is exposed to a heat source. In some cases, a loss of flavoring in a flavored vapor may occur as a result of chemical reactions between the flavor system elements or thermal degradation at a sufficiently high temperature. 
     Such a loss of flavoring from a flavoring system may reduce a sensory experience provided by an e-vaping device in which the flavoring system is included. 
     SUMMARY 
     According to some example embodiments, a cartridge for an electronic vaping device (EVD) may include a vaporizer assembly configured to form a generated vapor; and an additive assembly in fluid communication with the vaporizer assembly. The additive assembly may include: an adsorbent material including adsorbed carbon dioxide, the adsorbent material configured to release the carbon dioxide into the generated vapor based on at least a portion of the generated vapor adsorbing on the adsorbent material, the adsorbent material further configured to generate heat based on the portion of the generated vapor adsorbing on the adsorbent material, and a flavor material including a flavorant, the flavor material configured to release the flavorant into the generated vapor based at least in part on absorbing the heat generated by the adsorbent material. 
     The adsorbent material may include a plurality of adsorbent beads. 
     The flavor material may include a plurality of beads, and each of the beads may include the flavorant. 
     The flavor material may include at least one botanical substance, and the at least one botanical substance may include the flavorant. 
     The adsorbent material may include at least one of zeolite, silica, activated carbon, and molecular sieves. 
     The cartridge may further include a vaporizer assembly module and at least one additive module. The vaporizer assembly module may be removably coupled to the at least one additive module. The vaporizer assembly module may include the vaporizer assembly, the at least one additive module including the additive assembly. 
     The cartridge may further include a plurality of additive modules removably coupled together, each of the additive modules including a separate one of the adsorbent material and the flavor material. 
     The additive assembly may include at least first and second additive structures. The first and second additive structures may include at least one of the adsorbent material and the flavor material. The first and second additive structures may at least partially define a boundary of at least one flow pathway between the first and second additive structures. 
     According to some example embodiments, an e-vaping device may include a vaporizer assembly configured to form a generated vapor and an additive assembly in fluid communication with the vaporizer assembly. The additive assembly may include an adsorbent material including adsorbed carbon dioxide, the adsorbent material configured to release the carbon dioxide into the generated vapor based on at least a portion of the generated vapor adsorbing on the adsorbent material, the adsorbent material further configured to generate heat based on the portion of the generated vapor adsorbing on the adsorbent material. The additive assembly may include a flavor material including a flavorant, the flavor material configured to release the flavorant into the generated vapor based at least in part on absorbing the heat generated by the adsorbent material. The e-vaping device may include a power supply section configured to selectively supply power to the vaporizer assembly. 
     The adsorbent material may include a plurality of adsorbent beads. 
     The flavor material may include a plurality of beads, and each of the beads includes the flavorant. 
     The flavor material may include at least one botanical substance, and the at least one botanical substance may include the flavorant. 
     The adsorbent beads may include at least one of zeolite, silica, activated carbon, and molecular sieves. 
     The e-vaping device may further include a vaporizer assembly module and at least one additive module. The vaporizer assembly module may be removably coupled to the at least one additive module. The vaporizer assembly module may include the vaporizer assembly, the at least one additive module including the additive assembly. 
     The e-vaping device may further include a plurality of additive modules removably coupled together, each of the additive modules including a separate one of the adsorbent material and the flavor material. 
     The additive assembly may include at least first and second additive structures. The first and second additive structures may include at least one of the adsorbent material and the flavor material. The first and second additive structures may at least partially define a boundary of at least one flow pathway between the first and second additive structures. 
     The power supply section may include a rechargeable battery. 
     According to some example embodiments, a cartridge for an electronic vaping device (EVD) may include: a vaporizer assembly configured to form a generated vapor; and an additive assembly in fluid communication with the vaporizer assembly. The additive assembly may include an adsorbent material including adsorbed carbon dioxide, the adsorbent material configured to release the carbon dioxide into the generated vapor based on at least a portion of the generated vapor adsorbing on the adsorbent material, the adsorbent material further configured to generate heat based on at least a portion of the generated vapor adsorbing on the adsorbent material. 
     The adsorbent material may include a plurality of adsorbent beads. 
     The adsorbent material may include at least one of zeolite, silica, activated carbon, and molecular sieves. 
     The adsorbent material may be configured to generate heat based on at least a portion of the generated vapor adsorbing on the adsorbent material. The additive assembly may include a flavor material, the flavor material including a flavorant, the flavor material configured to release the flavorant into the generated vapor based at least in part on absorbing the heat generated by the adsorbent material. 
     The flavor material may include a plurality of beads, and each of the beads includes the at least one flavorant. 
     The flavor material may include at least one botanical substance, and the at least one botanical substance may include the at least one flavorant. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The various features and advantages of the non-limiting embodiments herein may become more apparent upon review of the detailed description in conjunction with the accompanying drawings. The accompanying drawings are merely provided for illustrative purposes and should not be interpreted to limit the scope of the claims. The accompanying drawings are not to be considered as drawn to scale unless explicitly noted. For purposes of clarity, various dimensions of the drawings may have been exaggerated. 
         FIG. 1A  is a side view of an e-vaping device according to some example embodiments. 
         FIG. 1B  is a cross-sectional view along line IB-IB′ of the e-vaping device of  FIG. 1A . 
         FIG. 2A  is a plan view of an additive assembly according to some example embodiments. 
         FIG. 2B  is a plan view of an additive assembly according to some example embodiments. 
         FIG. 2C  is a plan view of an additive assembly according to some example embodiments. 
         FIG. 2D  is a plan view of an additive assembly according to some example embodiments. 
         FIG. 3  is a schematic illustration of the adsorbent material and flavor material included in an additive assembly releasing carbon dioxide and flavorant into a generated vapor to form a flavored vapor. 
         FIG. 4  is a cross-sectional view of an additive assembly module and a vaporizer assembly module according to some example embodiments. 
         FIG. 5  is a cross-sectional view of multiple additive assembly modules and a vaporizer assembly module according to some example embodiments. 
         FIG. 6A  is a cross-sectional view of an additive assembly that includes multiple additive structures according to some example embodiments. 
         FIG. 6B  is a cross-sectional view of an additive assembly that includes multiple additive structures according to some example embodiments. 
     
    
    
     DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS 
     Some detailed example embodiments are disclosed herein. However, specific structural and functional details disclosed herein are merely representative for purposes of describing example embodiments. Example embodiments may, however, be embodied in many alternate forms and should not be construed as limited to only the example embodiments set forth herein. 
     Accordingly, while example embodiments are capable of various modifications and alternative forms, example embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that there is no intent to limit example embodiments to the particular forms disclosed, but to the contrary, example embodiments are to cover all modifications, equivalents, and alternatives falling within the scope of example embodiments. Like numbers refer to like elements throughout the description of the figures. 
     It should be understood that when an element or layer is referred to as being “on,” “connected to,” “coupled to,” or “covering” another element or layer, it may be directly on, connected to, coupled to, or covering the other element or layer or intervening elements or layers may be present. In contrast, when an element is referred to as being “directly on,” “directly connected to,” or “directly coupled to” another element or layer, there are no intervening elements or layers present. Like numbers refer to like elements throughout the specification. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items. 
     It should be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, elements, regions, layers and/or sections, these elements, elements, regions, layers, and/or sections should not be limited by these terms. These terms are only used to distinguish one element, element, region, layer, or section from another region, layer, or section. Thus, a first element, element, region, layer, or section discussed below could be termed a second element, element, region, layer, or section without departing from the teachings of example embodiments. 
     Spatially relative terms (e.g., “beneath,” “below,” “lower,” “above,” “upper,” and the like) may be used herein for ease of description to describe one element or feature&#39;s relationship to another element(s) or feature(s) as illustrated in the figures. It should be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the term “below” may encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. 
     The terminology used herein is for the purpose of describing various example embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “includes,” “including,” “comprises,” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or elements, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, elements, and/or groups thereof. 
     Example embodiments are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments (and intermediate structures) of example embodiments. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, example embodiments should not be construed as limited to the shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. 
     Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which example embodiments belong. It will be further understood that terms, including those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein. 
       FIG. 1A  is a side view of an e-vaping device  60  according to some example embodiments.  FIG. 1B  is a cross-sectional view along line IB-IB′ of the e-vaping device of  FIG. 1A . The e-vaping device  60  may include one or more of the features set forth in U.S. Patent Application Publication No. 2013/0192623 to Tucker et al. filed Jan. 31, 2013 and U.S. Patent Application Publication No. 2013/0192619 to Tucker et al. filed Jan. 14, 2013, the entire contents of each of which are incorporated herein by reference thereto. As used herein, the term “e-vaping device” is inclusive of all types of electronic vaping devices, regardless of form, size or shape. 
     Referring to  FIG. 1A  and  FIG. 1B , an e-vaping device  60  includes a replaceable cartridge (or first section)  70  and a reusable power supply section (or second section)  72 . The sections  70 ,  72  may be coupled together at complimentary interfaces  74 ,  84  of the respective sections  70 ,  72 . 
     In some example embodiments, the interfaces  74 ,  84  are threaded connectors. It should be appreciated that an interface  74 ,  84  may be any type of connector, including, without limitation, a snug-fit, detent, clamp, bayonet, and/or clasp. 
     As shown in  FIG. 1A  and  FIG. 1B , in some example embodiments, an outlet end insert  20  may be positioned at an outlet end of the cartridge  70 . The outlet end insert  20  includes at least one outlet port  21  that may be located off-axis from the longitudinal axis of the e-vaping device  60 . One or more of the outlet ports  21  may be angled outwardly in relation to the longitudinal axis of the e-vaping device  60 . Multiple outlet ports  21  may be uniformly or substantially uniformly distributed about the perimeter of the outlet end insert  20  so as to substantially uniformly distribute vapor drawn through the outlet end insert  20  during vaping. Thus, as a vapor is drawn through the outlet end insert  20 , the vapor may move in different directions. 
     The cartridge  70  includes a vaporizer assembly  22  and an additive assembly  24 . The vaporizer assembly  22  may form a generated vapor  95 , and the additive assembly  24  may form a flavored vapor  97  based on releasing one or more additives into the generated vapor  95  formed by the vaporizer assembly  22 . 
     In some example embodiments, the additive assembly  24  is configured to release one or more additives into the generated vapor  95  based on desorbing one or more additives from one or more adsorbent materials included in the additive assembly  24 . 
     In some example embodiments, the additive assembly  24  is configured to release one or more additives into the generated vapor  95  based on desorption of the one or more additives from the one or more adsorbent materials. The one or more additives may be desorbed from the one or more additive materials based on one or more elements of the generated vapor  95  adsorbing on the one or more adsorbent materials, thereby displacing the one or more additives on the one or more adsorbent materials. In some example embodiments, the additive assembly  24  reacts with one or more elements of the generated vapor  95  to release the one or more additives. 
     As described further below, the one or more elements of the generated vapor  95  may include one or more elements of a pre-vapor formulation from which the generated vapor  95  is formed. The one or more elements may include at least one of water, solvents, active ingredients, ethanol, plant extracts, and natural or artificial flavors. A pre-vapor formulation may include at least one of glycerin and propylene glycol. 
     Still referring to  FIG. 1A  and  FIG. 1B , the cartridge  70  includes an outer housing  16  extending in a longitudinal direction and an inner tube  62  coaxially positioned within the outer housing  16 . The power supply section  72  includes an outer housing  17  extending in a longitudinal direction. In some example embodiments, the outer housing  16  may be a single tube housing both the cartridge  70  and the power supply section  72  and the entire e-vaping device  60  may be disposable. The outer housing  16  may have a generally cylindrical cross-section. In some example embodiments, the outer housing  16  may have a generally triangular cross-section along one or more of the cartridge  70  and the power supply section  72 . In some example embodiments, the outer housing  16  may have a greater circumference or dimensions at a tip end than at an outlet end of the e-vaping device  60 . 
     The vaporizer assembly  22  includes inner tube  62 , gasket  14 , gasket  18 , a reservoir  32  configured to hold a pre-vapor formulation, a dispensing interface  34  configured to draw pre-vapor formulation from the reservoir  32 , and a heating element  36  configured to vaporize the drawn pre-vapor formulation. 
     At one end of the inner tube  62 , a nose portion of gasket (or seal)  14  is fitted into an end portion of the inner tube  62 . An outer perimeter of the gasket  14  may provide a substantially airtight seal with an interior surface of the outer housing  16 . The gasket  14  includes a passage  15  that opens into an interior of the inner tube  62  that defines a channel  66 . A space  38  at a backside portion of the gasket  14  assures communication between the passage  15  and one or more air inlet ports  44  located between the gasket  14  and a connector element  91 . The connector element  91  may be included in the interface  74 . 
     In some example embodiments, a nose portion of gasket  18  is fitted into another end portion of the inner tube  62 . An outer perimeter of the gasket  18  may provide a substantially airtight seal with an interior surface of the outer housing  16 . The gasket  18  includes a passage  19  disposed between the channel  66  of the inner tube  62  and the interior of an outlet end insert  20 . The passage  19  may transport a vapor from the channel  66  to the outlet end insert  20  via the additive assembly  24 . 
     In some example embodiments, at least one air inlet port  44  may be formed in the outer housing  16 , adjacent to the interface  74  to minimize the probability of an adult vaper&#39;s fingers occluding one of the ports and to control the resistance-to-draw (RTD) during vaping. In some example embodiments, the air inlet ports  44  may be machined into the outer housing  16  with precision tooling such that their diameters are closely controlled and replicated from one e-vaping device  60  to the next during manufacture. 
     In some example embodiments, the air inlet ports  44  may be drilled with carbide drill bits or other high-precision tools and/or techniques. In some example embodiments, the outer housing  16  may be formed of metal or metal alloys such that the size and shape of the air inlet ports  44  may not be altered during manufacturing operations, packaging, and vaping. Thus, the air inlet ports  44  may provide consistent RTD. In some example embodiments, the air inlet ports  44  may be sized and configured such that the e-vaping device  60  has a RTD in the range of from about 60 mm H 2 O to about 150 mm H 2 O. 
     Still referring to  FIG. 1A  and  FIG. 1B , the reservoir  32  may include a pre-vapor formulation. The space defined between the gaskets  14  and  18 , the outer housing  16  and the inner tube  62  may establish the confines of the reservoir  32 , such that the reservoir  32  may be contained in an outer annulus between the inner tube  62 , the outer housing  16  and the gaskets  14  and  18 . Thus, the reservoir  32  may at least partially surround the channel  66 . 
     The dispensing interface  34  is coupled to the reservoir  32 , such that the dispensing interface  34  may extend transversely across the channel  66  between opposing portions of the reservoir  32 . The dispensing interface  34  is configured to draw pre-vapor formulation from the reservoir  32 . 
     The heating element  36  is coupled to the dispensing interface  34  and is configured to generate heat. As shown in the example embodiment illustrated in  FIG. 1B , the heating element  36  may extend transversely across the channel  66  between opposing portions of the reservoir  32 . In some example embodiments, the heating element  36  may extend parallel to a longitudinal axis of the channel  66 . 
     The dispensing interface  34  is configured to draw pre-vapor formulation from the reservoir  32 , such that the pre-vapor formulation may be vaporized from the dispensing interface  34  based on heating of the dispensing interface  34  by the heating element  36 . 
     During vaping, pre-vapor formulation may be transferred from the reservoir  32  and/or storage medium in the proximity of the heating element  36  via capillary action of a dispensing interface  34 . The dispensing interface  34  may include a first end portion and a second end portion. The first and second end portions of the dispensing interface  34  may extend into opposite sides of the reservoir  32 . Dispensing interface  34  end portions may be referred to herein as roots. The heating element  36  may at least partially surround a central portion of the dispensing interface  34  such that if and/or when the heating element  36  is activated to generate heat, the pre-vapor formulation in the central portion of the dispensing interface  34  may be vaporized by the heating element  36  to form a vapor. The central portion of a dispensing interface  34  may be referred to herein as a trunk. 
     The reservoir  32  may include a pre-vapor formulation which is free of flavorants, such that if and/or when the vaporizer assembly  22  forms a vapor  95 , via vaporization of a pre-vapor formulation by the heating element  36 , the vapor  95  may be substantially absent of flavor, thereby being a “generated vapor.” Such an absence of flavorants in the reservoir  32  of the vaporizer assembly  22  may result in mitigation of chemical reactions between pre-vapor formulation materials and the flavorants in the reservoir  32  and upon vaporization as a result of heating of the pre-vapor formulation by the heating element  36 . 
     Still referring to  FIG. 1A  and  FIG. 1B , the additive assembly  24  is positioned between the vaporizer assembly  22  and the outlet end insert  20 . As shown in  FIG. 1B , the additive assembly  24  may be spaced apart from the vaporizer assembly  22  such that at least the additive assembly  24 , vaporizer assembly  22 , and outer housing  16  define a space  40  between the additive assembly  24  and the vaporizer assembly  22 . A generated vapor  95  formed by the vaporizer assembly  22  may pass through space  40  such that the generated vapor  95  is in fluid communication with the additive assembly  24 . In some example embodiments, the additive assembly  24  is located within the space  40  such that a generated vapor  95  may pass around at least one outer surface of the additive assembly  24  through the space  40 . 
     The additive assembly  24  is configured to form a flavored vapor  97  based on releasing one or more additives into a generated vapor  95  passing in fluid communication with one or more portions of the additive assembly  24 . 
     The additive assembly  24  is positioned in fluid communication with both the vaporizer assembly  22  and the outlet end insert  20 . The cartridge  70  may be configured to direct generated vapor  95  formed by the vaporizer assembly  22  to exit the cartridge  70  via the outlet ports  21 . The cartridge  70  may further be configured to direct the generated vapor  95  to pass in fluid communication with the additive assembly  24  towards the outlet ports  21 . Passing in fluid communication with the additive assembly  24  may include passing through at least a portion of the additive assembly  24 . 
     The additive assembly  24  may hold an additive and may be configured to release the additive into a generated vapor  95  formed by the vaporizer assembly  22  to form a flavored vapor  97 . As described further below, in some example embodiments the additive is carbon dioxide, and the additive assembly  24  may include one or more adsorbent materials onto which carbon dioxide is adsorbed. The additive assembly  24  may be configured to release an additive that is carbon dioxide into the generated vapor  95  to form a flavored vapor  97 . The additive assembly  24  may release the carbon dioxide into the generated vapor  95  based on one or more elements of the generated vapor  95  adsorbing onto the adsorbent material. 
     The additive assembly  24 , as discussed further below, may include a porous structure. The porous structure may hold an additive in fluid communication with at least one of the vaporizer assembly  22  and the space  40 , so that generated vapor  95  may pass at least partially through the porous structure and in fluid communication with the additive held in the porous structure. The generated vapor  95  may act as an eluent, eluting the additive from the porous structure and into the generated vapor  95  to form an eluate. The eluate may include the generated vapor  95  and the additive. Such an eluate may be referred to as the flavored vapor  97 . 
     In some example embodiments, an additive eluted into the generated vapor  95  is in a particulate phase. A particulate phase may include a liquid phase, solid phase, or the like. In some example embodiments, an additive eluted into the generated vapor  95  is in a vapor phase, gas phase, etc. An additive may include a volatile flavor substance, and the volatile flavor substance may be eluted into the generated vapor  95 . In some example embodiments, an additive eluted into the generated vapor  95  includes a nonvolatile flavor substance. 
     In some example embodiments, if and/or when the additive assembly  24  holds the additive separate from the vaporizer assembly  22  and the cartridge  70  is configured to direct generated vapor  95  through the additive assembly  24  subsequent to formation of the generated vapor  95 , the generated vapor  95  may be cooled from an initial temperature at formation in the vaporizer assembly  22 . Where the generated vapor  95  passing through the additive assembly  24  is cooled from the initial temperature, chemical reactions between the additive eluted into the generated vapor  95  and the elements of the generated vapor  95  may be at least partially mitigated. 
     In some example embodiments, if and/or when the e-vaping device  60  includes an additive assembly  24  that holds an additive separate from the vaporizer assembly  22 , the e-vaping device  60  may be configured to mitigate a probability of chemical reactions between the additive and one or more elements of the vaporizer assembly  22 . An absence of such chemical reactions may result in an absence of reaction products in the flavored vapor  97 . Such reaction products may detract from a sensory experience provided by the flavored vapor  97 . As a result, an e-vaping device  60  that is configured to mitigate the probability of such chemical reactions may provide a more consistent and improved sensory experience through the flavored vapor  97 . 
     In some example embodiments, the additive included in an e-vaping device  60  may be replaceable independently of the pre-vapor formulation in the cartridge  70 , as the flavorants are included in an additive assembly  24  that is separate from the vaporizer assembly  22  in which the pre-vapor formulation is included. The additive assembly  24  may be replaced with another additive assembly  24  to swap the additive included in the e-vaping device  60  as desired by an adult vaper. The additive assembly  24  may be replaced with another additive assembly  24  to replenish additives in the e-vaping device  60  without replacing a vaporizer assembly  22 , where the vaporizer assembly  22  may include sufficient pre-vapor formulation to support additional vaping. 
     In some example embodiments, one or more of the interfaces  74 ,  84  include one or more of a cathode connector element and an anode connector element. In the example embodiment illustrated in  FIG. 1B , for example, electrical lead  68 - 2  is coupled to the interface  74 . As further shown in  FIG. 1B , the power supply section  72  includes a lead  92  that couples the control circuitry  11  to the interface  84 . If and/or when interfaces  74 ,  84  are coupled together, the coupled interfaces  74 ,  84  may electrically couple leads  68 - 2  and  92  together. 
     In some example embodiments, the cartridge  70  includes a connector element  91 . Connector element  91  may include one or more of a cathode connector element and an anode connector element. In the example embodiment illustrated in  FIG. 1B , for example, electrical lead  68 - 1  is coupled to the connector element  91 . As further shown in  FIG. 1B , the connector element  91  is configured to couple with a power supply  12  included in the power supply section  72 . If and/or when interfaces  74 ,  84  are coupled together, the connector element  91  and power supply  12  may be coupled together. Coupling connector element  91  and power supply  12  together may electrically couple lead  68 - 1  and power supply  12  together. 
     The connector element  91  may include an insulating material  91   b  and a conductive material  91   a . The conductive material  91   a  may electrically couple lead  68 - 1  to power supply  12 , and the insulating material  91   b  may insulate the conductive material  91   a  from the interface  74 , such that a probability of an electrical short between the lead  68 - 1  and the interface  74  is reduced and/or prevented. For example, if and/or when the connector element  91  includes a cylindrical cross-section orthogonal to a longitudinal axis of the e-vaping device  60 , the insulating material  91   b  included in connector element  91  may be in an outer annular portion of the connector element  91  and the conductive material  91   a  may be in an inner cylindrical portion of the connector element  91 , such that the insulating material  91   b  surrounds the conductive material  91   a  and reduces and/or prevents a probability of an electrical connection between the conductive material  91   a  and the interface  74 . 
     Still referring to  FIG. 1A  and  FIG. 1B , the power supply section  72  includes a sensor  13  responsive to air drawn into the power supply section  72  via an air inlet port  44   a  adjacent to a free end or tip end of the e-vaping device  60 , at least one power supply  12 , and control circuitry  11 . The power supply  12  may include a rechargeable battery. The sensor  13  may be one or more of a pressure sensor, a microelectromechanical system (MEMS) sensor, etc. 
     In some example embodiments, the power supply  12  includes a battery arranged in the e-vaping device  60  such that the anode is downstream of the cathode. A connector element  91  contacts the downstream end of the battery. The heating element  36  is connected to the power supply  12  by at least lead  68 - 1  and connector element  91  if and/or when interfaces  74 ,  84  are coupled together. 
     The power supply  12  may be a Lithium-ion battery or one of its variants, for example a Lithium-ion polymer battery. Alternatively, the power supply  12  may be a nickel-metal hydride battery, a nickel cadmium battery, a lithium-manganese battery, a lithium-cobalt battery or a fuel cell. The e-vaping device  60  may be usable by an adult vaper until the energy in the power supply  12  is depleted or in the case of lithium polymer battery, a minimum voltage cut-off level is achieved. 
     Further, the power supply  12  may be rechargeable and may include circuitry configured to allow the battery to be chargeable by an external charging device. To recharge the e-vaping device  60 , a Universal Serial Bus (USB) charger or other suitable charger assembly may be used. 
     Upon completing the connection between the cartridge  70  and the power supply section  72 , the at least one power supply  12  may be electrically connected with the heating element  36  of the cartridge  70  upon actuation of the sensor  13 . Air is drawn primarily into the cartridge  70  through one or more air inlet ports  44 . The one or more air inlet ports  44  may be located along the outer housing  16 ,  17  of the first and second sections  70 ,  72  or at one or more of the coupled interfaces  74 ,  84 . 
     The sensor  13  may be configured to sense an air pressure drop and initiate application of voltage from the power supply  12  to the heating element  36 . As shown in the example embodiment illustrated in  FIG. 1B , some example embodiments of the power supply section  72  include a heater activation light  48  configured to glow if and/or when the heating element  36  is activated. The heater activation light  48  may include a light emitting diode (LED). Moreover, the heater activation light  48  may be arranged to be visible to an adult vaper during vaping. In addition, the heater activation light  48  may be utilized for e-vaping system diagnostics or to indicate that recharging is in progress. The heater activation light  48  may also be configured such that the adult vaper may activate and/or deactivate the heater activation light  48  for privacy. As shown in  FIG. 1A  and  FIG. 1B , the heater activation light  48  may be located on the tip end of the e-vaping device  60 . In some example embodiments, the heater activation light  48  may be located on a side portion of the outer housing  17 . 
     In addition, the at least one air inlet port  44   a  may be located adjacent to the sensor  13 , such that the sensor  13  may sense air flow indicative of vapor being drawn through the outlet end of the e-vaping device. The sensor  13  may activate the power supply  12  and the heater activation light  48  to indicate that the heating element  36  is activated. 
     Further, the control circuitry  11  may control the supply of electrical power to the heating element  36  responsive to the sensor  13 . In some example embodiments, the control circuitry  11  may include a maximum, time-period limiter. In some example embodiments, the control circuitry  11  may include a manually operable switch for an adult vaper to manually initiate vaping. The time-period of the electric current supply to the heating element  36  may be pre-set depending on the amount of pre-vapor formulation desired to be vaporized. In some example embodiments, the control circuitry  11  may control the supply of electrical power to the heating element  36  as long as the sensor  13  detects a pressure drop. 
     To control the supply of electrical power to a heating element  36 , the control circuitry  11  may execute one or more instances of computer-executable program code. The control circuitry  11  may include a processor and a memory. The memory may be a computer-readable storage medium storing computer-executable code. 
     The control circuitry  11  may include processing circuitry including, but not limited to, a processor, Central Processing Unit (CPU), a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate array (FPGA), a System-on-Chip (SoC), a programmable logic unit, a microprocessor, or any other device capable of responding to and executing instructions in a defined manner. In some example embodiments, the control circuitry  11  may be at least one of an application-specific integrated circuit (ASIC) and an ASIC chip. 
     The control circuitry  11  may be configured as a special purpose machine by executing computer-readable program code stored on a storage device. The program code may include program or computer-readable instructions, software elements, software modules, data files, data structures, and/or the like, capable of being implemented by one or more hardware devices, such as one or more of the control circuitry mentioned above. Examples of program code include both machine code produced by a compiler and higher level program code that is executed using an interpreter. 
     The control circuitry  11  may include one or more storage devices. The one or more storage devices may be tangible or non-transitory computer-readable storage media, such as random access memory (RAM), read only memory (ROM), a permanent mass storage device (such as a disk drive), solid state (e.g., NAND flash) device, and/or any other like data storage mechanism capable of storing and recording data. The one or more storage devices may be configured to store computer programs, program code, instructions, or some combination thereof, for one or more operating systems and/or for implementing the example embodiments described herein. The computer programs, program code, instructions, or some combination thereof, may also be loaded from a separate computer readable storage medium into the one or more storage devices and/or one or more computer processing devices using a drive mechanism. Such separate computer readable storage medium may include a USB flash drive, a memory stick, a Blu-ray/DVD/CD-ROM drive, a memory card, and/or other like computer readable storage media. The computer programs, program code, instructions, or some combination thereof, may be loaded into the one or more storage devices and/or the one or more computer processing devices from a remote data storage device via a network interface, rather than via a local computer readable storage medium. Additionally, the computer programs, program code, instructions, or some combination thereof, may be loaded into the one or more storage devices and/or the one or more processors from a remote computing system that is configured to transfer and/or distribute the computer programs, program code, instructions, or some combination thereof, over a network. The remote computing system may transfer and/or distribute the computer programs, program code, instructions, or some combination thereof, via a wired interface, an air interface, and/or any other like medium. 
     The control circuitry  11  may be a special purpose machine configured to execute the computer-executable code to control the supply of electrical power to the heating element  36 . Controlling the supply of electrical power to the heating element  36  may be referred to herein interchangeably as activating the heating element  36 . 
     Still referring to  FIG. 1A  and  FIG. 1B , if and/or when the heating element  36  is activated, the activated heating element  36  may heat a portion of a dispensing interface  34  surrounded by the heating element  36  for less than about 10 seconds. Thus, the power cycle (or maximum vaping length) may range in period from about 2 seconds to about 10 seconds (e.g., about 3 seconds to about 9 seconds, about 4 seconds to about 8 seconds or about 5 seconds to about 7 seconds). 
     The pre-vapor formulation is a material or combination of materials that may be transformed into a vapor. For example, the pre-vapor formulation may be a liquid, solid and/or gel formulation including, but not limited to, water, solvents, active ingredients, ethanol, plant extracts, natural or artificial flavors, and/or vapor formers such as glycerin and propylene glycol. 
     In some example embodiments, the pre-vapor formulation is one or more of propylene glycol, glycerin and combinations thereof. 
     The pre-vapor formulation may include nicotine or may exclude nicotine. The pre-vapor formulation may include one or more tobacco flavors. The pre-vapor formulation may include one or more flavors which are separate from one or more tobacco flavors. 
     In some example embodiments, a pre-vapor formulation that includes nicotine may also include one or more acids. The one or more acids may be one or more of pyruvic acid, formic acid, oxalic acid, glycolic acid, acetic acid, isovaleric acid, valeric acid, propionic acid, octanoic acid, lactic acid, levulinic acid, sorbic acid, malic acid, tartaric acid, succinic acid, citric acid, benzoic acid, oleic acid, aconitic acid, butyric acid, cinnamic acid, decanoic acid, 3,7-dimethyl-6-octenoic acid, 1-glutamic acid, heptanoic acid, hexanoic acid, 3-hexenoic acid, trans-2-hexenoic acid, isobutyric acid, lauric acid, 2-methylbutyric acid, 2-methylvaleric acid, myristic acid, nonanoic acid, palmitic acid, 4-penenoic acid, phenylacetic acid, 3-phenylpropionic acid, hydrochloric acid, phosphoric acid, sulfuric acid and combinations thereof. 
     In some example embodiments, a generated vapor  95  formed at the vaporizer assembly  22  may be substantially free of one or more materials being in a gas phase. For example, the generated vapor  95  may include one or more materials substantially in a particulate phase and substantially not in a gas phase. 
     The storage medium of the reservoir  32  may be a fibrous material including at least one of cotton, polyethylene, polyester, rayon and combinations thereof. The fibers may have a diameter ranging in size from about 6 microns to about 15 microns (e.g., about 8 microns to about 12 microns or about 9 microns to about 11 microns). The storage medium may be a sintered, porous or foamed material. Also, the fibers may be sized to be irrespirable and may have a cross-section which has a Y-shape, cross shape, clover shape or any other suitable shape. In some example embodiments, the reservoir  32  may include a filled tank lacking any storage medium and containing only pre-vapor formulation. 
     The reservoir  32  may be sized and configured to hold enough pre-vapor formulation such that the e-vaping device  60  may be configured for vaping for at least about 200 seconds. The e-vaping device  60  may be configured to allow each vaping to last a maximum of about 5 seconds. 
     The dispensing interface  34  may include a wick. The dispensing interface  34  may include filaments (or threads) having a capacity to draw the pre-vapor formulation. For example, a dispensing interface  34  may be a wick that is be a bundle of glass (or ceramic) filaments, a bundle including a group of windings of glass filaments, etc., all of which arrangements may be capable of drawing pre-vapor formulation via capillary action by interstitial spacings between the filaments. The filaments may be generally aligned in a direction perpendicular (transverse) to the longitudinal direction of the e-vaping device  60 . In some example embodiments, the dispensing interface  34  may include one to eight filament strands, each strand comprising a plurality of glass filaments twisted together. The end portions of the dispensing interface  34  may be flexible and foldable into the confines of the reservoir  32 . The filaments may have a cross-section that is generally cross-shaped, clover-shaped, Y-shaped, or in any other suitable shape. 
     The dispensing interface  34  may include any suitable material or combination of materials, also referred to herein as wicking materials. Examples of suitable materials may be, but not limited to, glass, ceramic- or graphite-based materials. The dispensing interface  34  may have any suitable capillary drawing action to accommodate pre-vapor formulations having different physical properties such as density, viscosity, surface tension and vapor pressure. 
     In some example embodiments, the heating element  36  may include a wire coil which at least partially surrounds the dispensing interface  34  in the vaporizer assembly  22 . The wire may be a metal wire and/or the wire coil may extend fully or partially along the length of the dispensing interface. The wire coil may further extend fully or partially around the circumference of the dispensing interface  34 . In some example embodiments, the wire coil may be isolated from direct contact with the dispensing interface  34 . 
     The heating element  36  may be formed of any suitable electrically resistive materials. Examples of suitable electrically resistive materials may include, but not limited to, titanium, zirconium, tantalum and metals from the platinum group. Examples of suitable metal alloys include, but not limited to, stainless steel, nickel, cobalt, chromium, aluminum-titanium-zirconium, hafnium, niobium, molybdenum, tantalum, tungsten, tin, gallium, manganese and iron-containing alloys, and super-alloys based on nickel, iron, cobalt, stainless steel. For example, the heating element  36  may be formed of nickel aluminide, a material with a layer of alumina on the surface, iron aluminide and other composite materials, the electrically resistive material may optionally be embedded in, encapsulated or coated with an insulating material or vice-versa, depending on the kinetics of energy transfer and the external physicochemical properties required. The heating element  36  may include at least one material selected from the group consisting of stainless steel, copper, copper alloys, nickel-chromium alloys, super alloys and combinations thereof. In some example embodiments, the heating element  36  may be formed of nickel-chromium alloys or iron-chromium alloys. In some example embodiments, the heating element  36  may be a ceramic heater having an electrically resistive layer on an outside surface thereof. 
     The heating element  36  may heat a pre-vapor formulation in the dispensing interface  34  by thermal conduction. Alternatively, heat from the heating element  36  may be conducted to the pre-vapor formulation by means of a heat conductive element or the heating element  36  may transfer heat to the incoming ambient air that is drawn through the e-vaping device  60  during vaping, which in turn heats the pre-vapor formulation by convection. 
     It should be appreciated that, instead of using a dispensing interface  34 , the vaporizer assembly  22  may include a heating element  36  that is a porous material which incorporates a resistance heater formed of a material having a high electrical resistance capable of generating heat quickly. 
     In some example embodiments, the cartridge  70  may be replaceable. In other words, once one of the flavorant or the pre-vapor formulation of the cartridge is depleted, only the cartridge  70  may be replaced. In some example embodiments, the entire e-vaping device  60  may be disposed once one of the reservoir  32  or the additive assembly  24  is depleted. 
     In some example embodiments, the e-vaping device  60  may be about 80 mm to about 110 mm long and about 7 mm to about 8 mm in diameter. For example, in some example embodiments, the e-vaping device  60  may be about 84 mm long and may have a diameter of about 7.8 mm. 
     As used herein, the term “additive” is used to describe a compound or combination of compounds that may provide a sensory experience to an adult vaper if and/or when the additive is included in a generated vapor. An additive may include a flavorant. In some example embodiments, an additive may include carbon dioxide. 
     As used herein, the term “flavorant” is used to describe a compound or combination of compounds that may provide flavor and/or aroma to an adult vaper. In some example embodiments, a flavorant is configured to interact with sensory receptors that may be activated through orthonasal or retronasal paths of activation. A flavorant may include one or more volatile flavor substances. 
     The at least one flavorant may include one or more of a natural flavorant or an artificial (“synthetic”) flavorant. The at least one flavorant may include one or more plant extracts. In some example embodiments, the at least one flavorant is one or more of tobacco flavor, menthol, wintergreen, peppermint, herb flavors, fruit flavors, nut flavors, liquor flavors, and combinations thereof. In some example embodiments, the flavorant is included in a botanical material. A botanical material may include material of one or more plants. A botanical material may include one or more herbs, spices, fruits, roots, leaves, grasses, or the like. For example, a botanical material may include orange rind material and sweetgrass material. In another example, a botanical material may include tobacco material. 
     In some example embodiments, the tobacco material may include material from any member of the genus  Nicotiana . In some example embodiments, the tobacco material includes a blend of two or more different tobacco varieties. Examples of suitable types of tobacco materials that may be used include, but are not limited to, flue-cured tobacco, Burley tobacco, Maryland tobacco, Oriental tobacco, Dark Tobacco, rare tobacco, specialty tobacco, blends thereof and the like. The tobacco material may be provided in any suitable form, including, but not limited to, tobacco lam processed tobacco materials, such as volume expanded or puffed tobacco, processed tobacco stems, such as cut-rolled or cut-puffed stems, reconstituted tobacco materials, blends thereof, and the like. In some example embodiments, the tobacco material is in the form of a substantially dry tobacco mass. 
       FIG. 2A  is a plan view of an additive assembly  24  according to some example embodiments.  FIG. 2B  is a plan view of an additive assembly  24  according to some example embodiments.  FIG. 2C  is a plan view of an additive assembly  24  according to some example embodiments.  FIG. 2D  is a plan view of an additive assembly  24  according to some example embodiments. Each of the example embodiments of the additive assembly  24  shown in  FIG. 2A ,  FIG. 2B ,  FIG. 2C , and  FIG. 2D  may be included in any of the embodiments included herein, including the additive assembly  24  shown in  FIG. 1B . 
     In some example embodiments, the additive assembly  24  includes one or more adsorbent materials on which carbon dioxide is adsorbed. The additive assembly  24  may be configured to release the carbon dioxide into a generated vapor  95  to form a flavored vapor  97 , based on one or more elements of the generated vapor  95  adsorbing onto the adsorbent materials. The adsorbent materials may include one or more of a monolithic material, and a plurality of adsorbent material structures. An adsorbent material structure may include a bead structure, such that a plurality of adsorbent material structures may include a plurality of adsorbent beads. 
     In the example embodiments illustrated in  FIG. 2A  and  FIG. 2B , for example, the additive assemblies  24  each include a plurality of adsorbent material beads  202  on which carbon dioxide  210  is adsorbed. An additive assembly  24  may include one or more various adsorbent materials configured to adsorb carbon dioxide. For example, one or more of the adsorbent material beads  202  may include at least one of zeolite, silica, activated carbon, and molecular sieves. 
     As shown in  FIG. 2A  and  FIG. 2B , the additive assembly  24  may be configured to direct generated vapor  95  through the plurality of beads  202  to elute at least some of the carbon dioxide  210  into the generated vapor  95  to form the flavored vapor  97 . The carbon dioxide  210  may be eluted into the generated vapor  95  based on desorption of the carbon dioxide  210  from one or more of the adsorbent material beads  202 . The carbon dioxide  210  may be desorbed from an adsorbent material bead  202  based on one or more elements of the generated vapor  95  adsorbing on the adsorbent material of a bead  202  such that the carbon dioxide  210  is displaced from the adsorbent material. 
     In the example embodiments illustrated in  FIGS. 2A-B , the carbon dioxide  210  is illustrated as being adsorbed on to the surfaces on an exterior of the adsorbent material beads  202 . It will be understood that, in some example embodiments, the carbon dioxide  210  may be at least partially distributed throughout an interior of one or more adsorbent materials, including one or more adsorbent material beads  202 . The carbon dioxide  210  may be adsorbed to internal surfaces, including one or more internal pore surfaces, in an interior of the adsorbent material and distributed into the interior of the adsorbent material. In some example embodiments, carbon dioxide  210  is both adsorbed on to one or more external surfaces of an adsorbent material, including one or more external pore surfaces, and adsorbed on to one or more internal surfaces, including one or more internal pore surfaces. The carbon dioxide  210  may thus be distributed throughout at least a portion of an interior of the adsorbent material in addition to being on an external surface of the adsorbent material. 
     In some example embodiments, the additive assembly  24  at least partially encloses the one or more adsorbent material structures in a containment structure. The containment structure may be configured to hold the one or more adsorbent material structures in a fixed volume. The containment structure may include one or more openings and may be configured to direct a generated vapor  95  through an interior of the containment structure to pass in fluid communication with one or more adsorbent material structures. 
     In the example embodiments illustrated in  FIG. 2A  and  FIG. 2B , for example, the additive assembly  24  includes a containment structure  201  that at least partially encloses the adsorbent material beads  202 . The containment structure  201  includes openings  212 ,  214  and is configured to direct the generated vapor  95  through opening  212  to elute carbon dioxide  210  into the generated vapor  95 . The containment structure  201  may direct flavored vapor  97  out of the additive assembly  24  through opening  214 . In some example embodiments, the containment structure  201  at least partially includes a mesh structure. For example, the containment structure  201  may include a mesh structure that covers at least one of openings  212 ,  214 . The mesh structure may be partially permeable, such that the mesh structure is configured to direct vapor  95 ,  97  across the mesh and restrict at least the adsorbent material beads  202  from passing through one or more of the openings  212 ,  214 . 
     In some example embodiments, the additive assembly  24  includes one or more flavor materials that hold one or more flavorants. The one or more flavor materials may release the one or more flavorants into the generated vapor  95  if and/or when the generated vapor  95  passes in fluid communication with the flavor materials. 
     An additive assembly  24  that includes an adsorbent material and a flavor material may be configured to release both carbon dioxide and one or more flavorants into the generated vapor  95  to form a flavored vapor  97 . In the example embodiments illustrated in  FIG. 2A  and  FIG. 2B , for example, the additive assemblies  24  include flavor materials  204 ,  206  in addition to the adsorbent material beads  202 . 
     As shown in  FIG. 2A  and  FIG. 2B , a flavor material may have one or more various shapes. For example, in the example embodiment illustrated in  FIG. 2A , the flavor material  204  is a “shredded” material having a fibrous shape. The flavor material  204  extends between adsorbent material beads  202  throughout the interior of the additive assembly  24 . In another example, in the example embodiment illustrated in  FIG. 2B , the flavor material  206  is a bead-shaped material that is packed with the adsorbent material beads  202  into the additive assembly  24 . In some example embodiments, one or more of the flavor materials  204 ,  206  included in an additive assembly includes at least one botanical substance, and the at least one botanical substance includes the flavorant. 
     In the illustrated example embodiments of  FIG. 2A  and  FIG. 2B , the additive assemblies  24  each include a uniform or substantially uniform mixture of adsorbent material beads  202  and at least one of the flavor materials  204 ,  206 . For example, in the illustrated example embodiment of  FIG. 2B , the adsorbent material beads  202  and flavor material beads  206  are substantially uniformly mixed. 
     In some example embodiments, the mixture of adsorbent materials and flavor materials in the additive assembly  24  may be a non-uniform mixture. For example, a concentration of flavor materials in the additive assembly  24  may be greater with increased proximity to the opening  214 , relative to the opening  212 . As a result, a generated vapor  95  passing in fluid communication with the flavor materials may include carbon dioxide released from adsorbent material beads  202  that are closer to the opening  212  than the opening  214 . 
     In some example embodiments, an adsorbent material included in the additive assembly  24  may be configured to generate heat based on one or more elements of generated vapor  95  adsorbing on the adsorbent material, such that the adsorbent material is configured to release both carbon dioxide and heat if and/or when one or more elements of the generated vapor  95  adsorb onto the adsorbent material. For example, an adsorbent material bead  202  may release heat based on one or more elements of the generated vapor  95  adsorbing onto the adsorbent material bead  202  and displacing at least some carbon dioxide  210  from the adsorbent material bead  202 . 
     In some example embodiments, one or more flavor materials included in the additive assembly  24  are configured to absorb the heat generated by the adsorbent material included in the additive assembly  24 . A flavor material may release an increased amount of flavorant, via elution into a generated vapor  95 , based on an increased temperature of the flavor material. If and/or when the flavor material absorbs heat generated by adsorbent material in the additive assembly  24 , the flavor material may release an increased amount of flavorant into the generated vapor  95 , relative to an unheated flavor material. 
     In the example embodiments illustrated in  FIG. 2A  and  FIG. 2B , the additive assembly  24  is configured to enable improved elution of flavorant into a generated vapor  95  based on elution of carbon dioxide  210  into the generated vapor  95 . The additive material beads  202  included in the additive assemblies  24  shown in  FIG. 2A  and  FIG. 2B  are configured to generate heat based on adsorption of compounds from within the vapor  95 . The generated heat may be absorbed by flavor materials  204 ,  206  to heat the flavor materials  204 ,  206 . Flavorants may be eluted from the flavor materials  204 ,  206  into a generated vapor  95  passing in fluid communication with the additive assembly  24 . The flavorant elution into the generated vapor  95  may be improved, relative to an additive assembly  24  in which the adsorbent material beads  202  are absent, based on the adsorbent material-generated heat that is absorbed by the flavor materials  204 ,  206 . 
     Referring to  FIG. 2C  and  FIG. 2D , in some example embodiments, an additive assembly  24  may include one or more structures that include at least one of adsorbent material and flavor material. Such one or more structures may be porous structures that include at least one of adsorbed carbon dioxide and one or more flavorants. The one or more structures may be configured to release at least one of carbon dioxide and one or more flavorants into a generated vapor  95  if and/or when the generated vapor  95  flows in fluid communication with the one or more structures. 
     Referring to the example embodiment illustrated in  FIG. 2C , the additive assembly  24  includes a structure  220  configured to release at least carbon dioxide into a generated vapor  95  flowing in fluid communication with the structure  220 . The structure  220  may be a porous structure configured to direct generated vapor  95  to flow through an interior of the structure  220 . Carbon dioxide may be adsorbed on at least a portion of the internal structure of the structure  220 . Carbon dioxide may be desorbed from the internal structure of the structure  220  based on one or more elements of the generated vapor  95  adsorbing on the internal structure of the structure  220 . 
     In some example embodiments, the structure  220  may hold one or more flavorants within an internal structure of the structure  220 . The structure  220  may be configured to enable elution of one or more flavorants into a generated vapor  95  flowing through the internal structure of structure  220 . 
     In some example embodiments, the additive assembly  24  may include multiple structures  220 . Separate structures  220  may include different ones of an adsorbent material holding adsorbed carbon dioxide and a flavor material holding one or more flavorants. For example, an additive assembly  24  may include a first structure  220  that is proximate to the vaporizer assembly  22  and a second structure  220  that is distal from the vaporizer assembly  22 . The first structure  220  may include an adsorbent material on which carbon dioxide is adsorbed, and the second structure  220  may include a flavor material holding one or more flavorants. A generated vapor  95  formed by the vaporizer assembly  95  may first flow in fluid communication with the first structure  220  to elute carbon dioxide from the first structure  220  and carry heat generated by adsorbent material included in the first structure  220 . The generated vapor  95  may then flow in fluid communication with the second structure  220  and transfer the carried heat to the second structure  220 . The generated vapor  95  may elute one or more flavorants from the second structure  220 , where flavorant elution is based at least in part upon the heat transferred to the second structure  220 . 
     In some example embodiments, the structure  220  may be configured to release one or more of carbon dioxide and one or more flavorants into a generated vapor  95  flowing in fluid communication with an outer surface of the structure  220 . For example, the structure  220  may be configured to direct the generated vapor  95  to flow around one or more outer surfaces of the structure  220 . The structure  220  may include at least one of carbon dioxide adsorbed to an outer surface and one or more flavorants that may be eluted through an outer surface. 
     In some example embodiments, the additive assembly  24  may include a structure  220  that includes one or more internal passages through which a generated vapor  95  may flow. At least one of carbon dioxide and one or more flavorants may be released into a generated vapor  95  through the one or more internal passages. In the example embodiment illustrated in  FIG. 2D , for example, the structure  220  defines an internal passage  240  having openings  242 ,  244 . The structure  220  shown in  FIG. 2D  may be configured to direct generated vapor  95  to enter the passage  240  through opening  242  and exit the passage  240  through opening  244 . 
     In some example embodiments, a portion of the structure  220  that defines an interior surface  241  of the passage  240  may include an adsorbent material on which carbon dioxide may be adsorbed. The structure  220  may be configured to desorb the carbon dioxide into a generated vapor  95  passing through the passage  240  to form the flavored vapor  97 , based on one or more elements of the generated vapor  95  adsorbing onto the one or more portions of the structure  220  that define the interior surface  241  of the passage  240 . 
     In some example embodiments, a portion of the structure  220  that defines an interior surface  241  of the passage  240  may include a flavor material holding one or more flavorants. The structure  220  may be configured to release the one or more flavorants into a generated vapor  95  passing through the passage  240  to form the flavored vapor  97 . 
     In some example embodiments, an additive assembly  24  may include multiple adsorbent materials. In some example embodiments, an additive assembly  24  may include multiple passages  240 . In some example embodiments, at least one of the passages  240  may include one or more adsorbent materials configured to adsorb carbon dioxide, and at least one of the passages  240  may include one or more flavor materials configured to hold one or more flavorants. 
       FIG. 3  is a schematic illustration of the adsorbent material and flavor material included in an additive assembly releasing carbon dioxide and flavorant into a generated vapor to form a flavored vapor. The example embodiment of the additive assembly  24  shown in  FIG. 3  may be included in any of the embodiments included herein, including the additive assembly  24  shown in  FIG. 1B . 
     In some example embodiments, an additive assembly  24  includes at least one adsorbent material  303  and at least one flavor material  305 . In the example embodiment illustrated in  FIG. 3 , the adsorbent material  303  includes a plurality of adsorbent material beads  202 . In the example embodiment illustrated in  FIG. 3 , the adsorbent material  303  includes carbon dioxide  306  adsorbed on one or more external and internal pore surfaces of the adsorbent material beads  202 . The flavor material  305  includes one or more flavor material beads  206  holding at least the flavorants  312 . In some example embodiments, the one or more flavorants  312  are held within external and internal pore surfaces of the flavor material beads  206 . A desorption pathway, adsorption pathway, displacement pathway, some combination thereof, or the like with regard to an adsorbent material may include a process that occurs at the molecular level at the adsorption sites of the adsorbent material. 
     The example embodiment illustrated in  FIG. 3  further shows that the adsorbent material  303  is closer to a source of generated vapor (e.g., at least one of vaporizer assembly  22  and space  40  illustrated in  FIG. 1B ) than the flavor material  305 . However, it will be understood that, in some example embodiments, the additive assembly  24  may include a uniform or substantially uniform mixture of adsorbent material  303  and flavor material  305 . 
     The additive assembly  24  may be configured to release carbon dioxide  306  into a generated vapor  95  that flows in fluid communication with the adsorbent material  303 , based at least in part upon one or more elements of the generated vapor  95  adsorbing on one or more structures of the adsorbent material  303  to desorb the carbon dioxide. The adsorbent material  303  may further generate and release heat  310  based on the one or more elements of the generated vapor  95  adsorbing on the one or more structures of the adsorbent material  303  to desorb the carbon dioxide. One or more elements or compounds within the vapor  95  may be adsorbed by the adsorbent, based on at least one of the relative binding energies of the one or more elements or compounds and/or the relative affinities of the one or more elements or compounds for one or more specific adsorbents. 
     As shown in  FIG. 3 , a generated vapor  95  may flow in fluid communication with the adsorbent material beads  202  such that one or more elements  302  of the generated vapor  95  adsorb  304  onto the adsorbent material beads  202  to desorb  308  at least some of the carbon dioxide  306  from the adsorbent material beads  202 . The carbon dioxide  306  may be desorbed based on displacement from the adsorbent material beads  202  by the one or more elements  302  of the generated vapor  95 . The one or more elements  302  of the generated vapor  95  may include at least one of water, beads, solvents, active ingredients, ethanol, plant extracts, natural or artificial flavors, and one or more pre-vapor formulations. A pre-vapor formulation may include at least one of glycerin and propylene glycol. 
     As shown in  FIG. 3 , the desorbed  308  carbon dioxide  306  may be eluted into the generated vapor  95  to form a modified vapor  96 . The modified vapor  96  includes one or more elements  302  of the generated vapor  95  and at least some of the desorbed carbon dioxide  306 . 
     As shown in  FIG. 3 , the adsorbent material  303  may, in addition to releasing carbon dioxide  306  through desorption  308 , generate heat  310  based on one or more elements  302  of the generated vapor  95  adsorbing onto the adsorbent material beads  202 . The heat  310  may be absorbed by one or more of the flavor material beads  206  included in the flavor material  305 . The heat may be transferred to the flavor material  305  through one or more of conduction, convection, and radiation. For example, if and/or when the flavor material beads  206  and adsorbent material beads  202  are in physical contact, the generated heat  310  may be transferred from the adsorbent material beads  202  to the flavor material beads  206  through conduction. In another example, the heat  310  may be transferred to at least some of the flavor material beads  206  by the modified vapor  96  through convection. In some example embodiments, heat generated in the system may facilitate (enable) the release of a greater amount of flavorant to modified vapor  96 . Some flavorant mays transfer to stream  96  through an elution/entrainment type of mechanism (e.g., a concentration driven mechanism and/or concentration gradient between the flavorant carrier and the passing vapor). Such a transfer may occur even in the absence of heat generation at the adsorbent material beads  202  and absorption at flavor material  305 . 
     The flavor material  305  included in the additive assembly  24  may be configured to release one or more flavorants into a vapor flowing in fluid communication with the flavor material  305  based at least in part upon absorbing the heat  310  generated by the adsorbent material beads  202 . Based on the flavor material  305  and the adsorbent material beads  202 , the additive assembly  24  may be configured to form a flavored vapor  97  that includes both carbon dioxide and one or more flavorants. 
     As shown in  FIG. 3 , the flavor material beads  206  may release the one or more flavorants  312  based at least in part upon absorbing at least some of the heat  310  generated by the adsorbent material beads  202 . At least one of the rate of flavorant  312  released by the flavor material  305  and the amount of flavorant  312  released by the flavor material  305  may vary in direct proportion to the amount of heat  310  absorbed by the flavor material  305 . As a result, the flavor material  305  may be configured to release more flavorant  312  into a vapor  95 ,  96  passing in fluid communication with the flavor material  305  if and/or when the flavor material  305  absorbs heat  310  from the adsorbent material beads  202 , relative to the amount of flavorant  312  released by the flavor material  305  into a vapor  95 ,  96  in the absence of absorbing such heat  310 . Thus, flavorant  312  elution from the flavor material  305  may be augmented by the flavor material  305  absorbing the heat  310  generated by the adsorbent material beads  202 . 
     As shown in  FIG. 3 , if and/or when the flavorants  312  are released from the flavor material  206  into a modified vapor  96 , the flavorants  312  may mix with the modified vapor  96  to form a flavored vapor  97 . The flavored vapor  97  may include one or more generated vapor elements  302 , carbon dioxide  310  released by the adsorbent material  303 , and flavorants  312  released by the flavor material  305 . The flavored vapor  97  may exit the additive assembly  24 . 
       FIG. 4  is a cross-sectional view of an additive assembly module and a vaporizer assembly module according to some example embodiments. The cartridge  70  shown in  FIG. 4  may be included in any of the embodiments included herein, including the cartridge  70  of the e-vaping device  60  shown in  FIG. 1A  and  FIG. 1B . In some example embodiments, the cartridge  70  shown in  FIG. 4  may be coupled with a power supply section  72  illustrated in  FIG. 1A  and  FIG. 1B  to form an e-vaping device  60 . 
     In some example embodiments, a cartridge  70  may include multiple modules that may be coupled together to configure the cartridge to provide a flavored vapor. The additive assembly may be included in an additive assembly module. The additive assembly module may be configured to be removably coupled to a vaporizer assembly module. The vaporizer assembly module may include a vaporizer assembly. The additive assembly module may be decoupled from the vaporizer assembly module, swapped for a different additive assembly module, etc. Different additive assembly modules may include different additive assemblies, different flavorants, different adsorbent materials, different flavor materials, different additive assembly structures, some combination thereof, etc. Different additive assemblies may be configured to form different flavored vapors, modified vapors, some combination thereof, etc. associated with different mixtures of a generated vapor with one or more flavors, carbon dioxide, some combination thereof, etc. As a result, swapping different additive assemblies in a cartridge may enable an adult vaper to swap one or more flavors, adsorbent materials, etc. associated with the flavored vapors provided to the adult vaper during vaping independently of swapping entire cartridges, thereby improving the sensory experience of the adult vaper during vaping. 
     As shown in  FIG. 4 , a cartridge  70  may include an additive assembly module  410  and a vaporizer assembly module  420 . Modules  410 ,  420  may be coupled together via complimentary, respective interfaces  414 ,  424 . It will be understood that the interfaces  414 ,  424  may include any of the types of interfaces described herein. Each module  410 ,  420  may include a respective housing  411 ,  421 . 
     The vaporizer assembly module  420  may include a vaporizer assembly  22  within the housing  421 . The vaporizer assembly  22  shown in  FIG. 4  may be the vaporizer assembly  22  illustrated in  FIG. 1B . 
     As shown in  FIG. 4 , the interface  424  of module  420  may include a conduit  426 , such that the vaporizer assembly  22  held within the housing  421  of the module  420  is held in fluid communication with an exterior of the module  420 . The vaporizer assembly module  420  may include a cartridge interface  74  at one end distal from the interface  424 . The cartridge interface  74  may be configured to electrically couple the vaporizer assembly  22  with a power supply included in a separate power supply section of an e-vaping device. 
     The additive assembly module  410  may include an additive assembly  24  within the housing  411 . The additive assembly  24  shown in  FIG. 4  may be the additive assembly  24  shown in any of  FIG. 1B ,  FIG. 2A ,  FIG. 2B ,  FIG. 2C ,  FIG. 2D , and  FIG. 3 . 
     As shown in  FIG. 4 , the interface  414  of module  410  may include a conduit  416 . The conduit  416  may extend between the interface  414  and the interior of the housing  411 , such that the additive assembly  24  held within the housing  411  of the module  410  is held in fluid communication with an exterior of the module  410  through the conduit  416 . The interior of the housing  411  may be referred to herein as an additive assembly compartment  413 . The additive assembly module  410  may include an outlet end insert  20  at an outlet end of the module  410  and a set of one or more outlet ports  21  in the outlet end insert  20 . 
     As shown in  FIG. 4 , if and/or when the modules  410 ,  420  are coupled via interfaces  414 ,  424 , the modules  410 ,  420  may form a cartridge  70 , where the cartridge includes an outlet end insert  20  at an outlet end and an interface  74  at a tip end. The cartridge  70  may further include the additive assembly  24  being held in fluid communication with the vaporizer assembly  22  via a conduit that includes at least one of the coupled conduits  416 ,  426  of the coupled interfaces  414 ,  424 . For example, in some example embodiments, the additive assembly  24  is held in fluid communication with the vaporizer assembly  22  via the conduit  416  if and/or when interfaces  414 ,  424  are coupled together. The cartridge  70  may further include the additive assembly  24  being in fluid communication with the outlet ports  21 , such that generated vapor formed by the vaporizer assembly  22  may pass out of the cartridge  70  by following a pathway extending through the additive assembly  24  to the outlet ports  21 . The additive assembly compartment  413  within the housing  411  may direct generated vapor received into the additive assembly compartment  413  to pass through the additive assembly  24 . 
     As shown in  FIG. 4 , the additive assembly module  410  may be configured to restrict fluid communication through the module  410  to be through the additive assembly  24 , such that generated vapor passing from the vaporizer assembly  22  to the outlet ports  21  in the formed cartridge  70  are restricted to passing through the additive assembly  24 . The module  410  housing  411  may be sized to establish physical contact with the outer surfaces of the additive assembly  24 . 
     In some example embodiments, the cartridge  70  includes an opening via which an additive assembly  24  may be inserted or removed from the module  410 . The cartridge  70  may include a hatch (not shown) which may be operable to selectively expose or seal the module  410  interior from an exterior environment to enable the additive assembly  24  to selectively seal the module  410  interior from the exterior environment based on the additive assembly  24  being inserted into the module  410  interior. 
     The additive assembly module  410  may be configured to be removably coupled with the module  420 , so that additive assembly modules  410  may be swapped from the module  420 . 
       FIG. 5  is a cross-sectional view of multiple additive assembly modules and a vaporizer assembly module according to some example embodiments. The cartridge  70  shown in  FIG. 5  may be included in any of the embodiments included herein, including the cartridge  70  of the e-vaping device  60  shown in  FIG. 1A  and  FIG. 1B . In some example embodiments, the cartridge  70  shown in  FIG. 5  may be coupled with a power supply section  72  illustrated in  FIG. 1A  and  FIG. 1B  to form an e-vaping device  60 . 
     In some example embodiments, a cartridge  70  may include multiple modules that may be coupled together to configure the cartridge to provide a flavored vapor. The multiple modules may include multiple, separate additive assembly modules that each include a separate additive assembly. The multiple, separate additive assembly modules may be configured to be coupled together to provide a flavored vapor based on a generated vapor passing through each of the separate additive assembly modules. The separate additive assembly modules may be removably coupled together, such that an adult vaper may swap additive assembly modules to control the flavorants, gasses, etc. included in the flavored vapor formed by the additive assemblies included in the cartridge  70 . 
     As shown in  FIG. 5 , a cartridge  70  may include additive assembly modules  510 - 1  to  510 -N and a vaporizer assembly module  420 . As also show, the cartridge  70  may, in some example embodiments, include an outlet end insert module  520 . Modules  420 ,  510 - 1  to  510 -N, and  520  may be coupled together via complimentary interfaces  424 ,  514 - 1  to  514 -N,  516 - 1  to  516 -N, and  524 . It will be understood that the interfaces may include any of the types of interfaces described herein. Each module  420 ,  510 - 1  to  510 -N, and  520  may include a respective housing  421 ,  511 - 1  to  511 -N, and  521 . 
     The additive assembly modules  510 - 1  to  510 -N may include separate additive assemblies  25 - 1  to  25 -N within the respective additive assembly compartments  513 - 1  to  513 -N thereof. The compartments  513 - 1  to  513 -N may be at least partially defined by the respective housings  411 - 1  to  411 -N. Each of the additive assemblies  25 - 1  to  25 -N shown in  FIG. 5  may be the additive assembly  24  shown in any of  FIG. 1B ,  FIG. 2A ,  FIG. 2B ,  FIG. 2C ,  FIG. 2D , and  FIG. 3 . 
     As shown in  FIG. 5 , the additive assembly modules  510 - 1  to  510 -N include respective pairs of interfaces  514 - 1 ,  516 - 1  to  514 -N,  516 -N at opposite ends. The interfaces  514 - 1  to  514 -N may be configured to be interchangeably and removably coupled to any of the interfaces  516 - 1  to  516 -N. One or more of interfaces  516 - 1  to  516 -N may be interchangeably and removably coupled to interface  525  of module  520 . One or more of interfaces  514 - 1  to  514 -N may be interchangeably and removably coupled to interface  424  of module  420 . As a result, the modules  510 - 1  to  510 -N may be interchangeably and removably coupled together in one or more various combinations and configurations. 
     Each of the additive assembly module interfaces  514 - 1  to  514 -N may include a respective conduit  515 - 1  to  515 -N, and each of the additive assembly module interfaces  516 - 1  to  516 -N may include a respective conduit  517 - 1  to  517 -N, such that each of the additive assemblies  25 - 1  to  25 -N held within the housing of each module  510 - 1  to  510 -N is held in fluid communication with an exterior of the respective module  510 - 1  to  510 -N through the conduits  514 - 1 ,  516 - 1  to  514 -N,  516 -N of the respective module  510 - 1  to  510 -N. 
     As shown in  FIG. 4 , if and/or when the modules  420 ,  510 - 1  to  510 -N, and  520  are coupled together, the modules  420 ,  510 - 1  to  510 -N, and  520  may form a cartridge  70 , where the cartridge includes an outlet end insert  20  at an outlet end and an interface  74  at a tip end. The cartridge  70  may further include the additive assemblies  25 - 1  to  25 -N being held in fluid communication with the vaporizer assembly  22  via one or more sets of conduits that include at least one of the coupled conduits  426 ,  515 - 1  to  515 -N,  517 - 1  to  517 -N,  525  of the respective coupled interfaces  424 ,  514 - 1  to  514 -N,  516 - 1  to  516 -N, and  524 . 
       FIG. 6A  is a cross-sectional view of an additive assembly  24  that includes multiple additive structures according to some example embodiments. The additive assembly  24  shown in  FIG. 6A  may be included in any of the embodiments included herein, including the additive assembly  24  shown in  FIG. 1B . 
     In some example embodiments, an additive assembly  24  includes multiple additive structures  604 - 1  to  604 -N. The additive assembly  24  may include a configuration of multiple additive structures  604 - 1  to  604 -N that collectively define one or more passages through the additive assembly  24 . The additive assembly  24  may be configured to direct a generated vapor  95  through one or more of the passages  602 - 1  to  602 -N to flow in fluid communication with one or more surfaces of the additive structures  604 - 1  to  604 -N. 
     As shown in  FIG. 6A , additive assembly  24  includes additive structures  604 - 1  to  604 -N. The additive structures  604 - 1  to  604 -N may each include at least one of an adsorbent material and a flavor material. Different additive structures may include different materials. For example, additive structure  604 - 1  may include an adsorbent material on which carbon dioxide is adsorbed and additive structure  604 -N may include a flavor material holding at least one flavorant. 
     In some example embodiments, one or more of the additive structures  604 - 1  to  604 -N is a monolithic structure that restricts generated vapor  95  to flow along an outer surface of the respective one or more additive structures  604 - 1  to  604 -N. 
     As further shown in  FIG. 6A , the additive structures  604 - 1  to  604 -N may be positioned in the additive assembly  24  in a configuration such that the additive structures  604 - 1  to  604 -N at least partially define one or more passages  602 - 1  to  602 -N through the additive assembly  24 . The additive assembly  24  shown in  FIG. 6A  may direct a generated vapor  95  entering the additive assembly  24  to flow through at least one of the passages  602 - 1  to  602 -N such that the generated vapor  95  flows in fluid communication with an outer surface of at least one of the additive structures  604 - 1  to  604 -N. 
     Based on directing at least a portion of the generated vapor  95  to flow through one or more passages in fluid communication with an outer surface of one or more additive structures  604 - 1  to  604 -N, the additive assembly  24  may enable improved release of at least one of flavorant and carbon dioxide into the generated vapor  95 . For example, based on including multiple additive structures  604 - 1  to  604 -N configured to define multiple passages  602 - 1  to  602 -N through the additive assembly  24 , the additive assembly  24  may include a greater additive structure outer surface area, relative to an additive assembly  24  that includes an individual additive structure  604 - 1 . Based on including such an increased outer surface area, the additive assembly  24  shown in  FIG. 6A  may be configured to provide improved release of one or more additives into a generated vapor  95  flowing in fluid communication with the one or more additive structures  604 - 1  to  604 -N. 
       FIG. 6B  is a cross-sectional view of an additive assembly  24  that includes multiple additive structures  652 - 1  to  652 - 2  and  654  according to some example embodiments. The additive assembly  24  shown in  FIG. 6B  may be included in any of the embodiments included herein, including the additive assembly  24  shown in  FIG. 1B . 
     In some example embodiments, an additive assembly  24  may include a configuration of multiple additive structures that collectively define one or more passages through the additive assembly  24 . The one or more passages may include portions having different orientations. A vapor flowing through the one or more passages may change direction based on flowing through differently-oriented passage portions. If and/or when a vapor flows from a first passage portion having a first orientation to another passage portion having a different orientation, the vapor may impinge on an outer surface of an additive structure. Additive release from the additive structure may be improved, based on the impingement. 
     As shown in  FIG. 6B , additive assembly  24  includes a configuration of additive structures  652 - 1  to  652 - 2  and  654  that collectively define a passage  606  through the additive assembly  24 . The passage  606  includes portions having portions  608 - 1  and  608 - 2 . 
     Additive structures  652 - 1  to  652 - 2  define a first portion  608 - 1  of the passage  606  through the additive assembly  24 . The first portion  608 - 1  of the passage  606  is oriented to extend in parallel or substantially in parallel with a longitudinal axis of the additive assembly  24 . 
     Additive structures  652 - 1  to  652 - 2  and  654  at least partially define portions  608 - 2  of the passage  606 . Portions  608 - 2  are oriented to extend orthogonally or substantially orthogonally to the longitudinal axis of the additive assembly  24 . As shown, the passage  606  first portion  608 - 1  extends orthogonally or substantially orthogonally to an outer surface  656  of the additive structure  654 . 
     Based on the orientations of portions  608 - 1  and  608 - 2  of the passage  606 , a generated vapor  95  flowing through the passage  606  from portion  608 - 1  to one of the portions  608 - 2  may impinge upon the outer surface  656  of the additive structure  654 . 
     In some example embodiments, the additive structure  654  may divert at least a portion of the impinging generated vapor  95  to flow through portions  608 - 2  of the passage  606  such that the generated vapor  95  flows in fluid communication with one or more outer surfaces  656  of the additive structure  654 . Based on the generated vapor  95  impinging upon the additive structure  654  outer surface  656 , additive release from the additive structure  654  into the generated vapor to form a flavored vapor  97   a  may be improved. 
     In some example embodiments, the additive structure  654  is a porous structure, such that at least a portion of the generated vapor  95  impinging on surface  656  may flow through the additive structure  654  to form a flavored vapor  97   b.    
     While a number of example embodiments have been disclosed herein, it should be understood that other variations may be possible. Such variations are not to be regarded as a departure from the spirit and scope of the present disclosure, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.