Source: http://www.google.com/patents/US7727290?ie=ISO-8859-1&dq=6462713
Timestamp: 2014-08-20 12:09:15
Document Index: 72507453

Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60']

Patent US7727290 - making electrochemical battery cell comprising printed negative electrode by ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsA flat, flexible electrochemical cell is provided. The within invention describes various aspects of the flat, flexible electrochemical cell. A printed anode is provided that obviates the need for a discrete anode current collector, thereby reducing the size of the battery. An advantageous electrolyte...http://www.google.com/patents/US7727290?utm_source=gb-gplus-sharePatent US7727290 - making electrochemical battery cell comprising printed negative electrode by preparing zinc containing ink by mixing aqueous solvent, zinc powder, binder soluble in solvent, and zinc compound comprising zinc chloride and zinc acetate, printing onto substrate to form negative electrodeAdvanced Patent SearchPublication numberUS7727290 B2Publication typeGrantApplication numberUS 12/603,114Publication dateJun 1, 2010Filing dateOct 21, 2009Priority dateFeb 12, 2002Fee statusPaidAlso published asCA2513454A1, CN1659726A, CN100367539C, EP1485960A2, EP1485960B1, EP2276092A1, EP2276092B1, US7348096, US7625664, US8119278, US20030165744, US20060115717, US20100040941, US20100209756, US20110274959, US20120107666, WO2003069700A2, WO2003069700A3Publication number12603114, 603114, US 7727290 B2, US 7727290B2, US-B2-7727290, US7727290 B2, US7727290B2InventorsJing Zhang, Mark A. Schubert, Guanghong ZhengOriginal AssigneeEveready Battery Company, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (48), Referenced by (1), Classifications (78), Legal Events (1) External Links: USPTO, USPTO Assignment, Espacenetmaking electrochemical battery cell comprising printed negative electrode by preparing zinc containing ink by mixing aqueous solvent, zinc powder, binder soluble in solvent, and zinc compound comprising zinc chloride and zinc acetate, printing onto substrate to form negative electrodeUS 7727290 B2Abstract A flat, flexible electrochemical cell is provided. The within invention describes various aspects of the flat, flexible electrochemical cell. A printed anode is provided that obviates the need for a discrete anode current collector, thereby reducing the size of the battery. An advantageous electrolyte is provided that enables the use of a metallic cathode current collector, thereby improving the performance of the battery. Printable gelled electrolytes and separators are provided, enabling the construction of both co-facial and co-planar batteries. Cell contacts are provided that reduce the potential for electrolyte creepage in the flat, flexible electrochemical cells of the within invention.
CROSS REFERENCE TO RELATED APPLICATIONS This application is a continuation application of U.S. application Ser. No. 11/332,635, filed Jan. 12, 2006, which is a continuation of U.S. application Ser. No. 10/321,182, filed Dec. 17, 2002, entitled �FLEXIBLE THIN PRINTED BATTERY AND DEVICE AND METHOD OF MANUFACTURING SAME,� now issued as U.S. Pat. No. 7,348,096, which claims the benefit under 35 USC 119(e) to the following U.S. provisional patent applications: U.S. Application No. 60/356,407, U.S. Application No. 60/356,236, U.S. Application No. 60/356,213, U.S. Application No. 60/356,406, U.S. Application No. 60/356,583, U.S. Application No. 60/356,247, U.S. Application No. 60/356,266, and U.S. Application No. 60/356,584, all filed on Feb. 12, 2002. The aforementioned related applications are hereby incorporated herein by reference.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is an electrochemical cell according to the within invention;
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Components of the thin flexible printed battery 1 of the within invention include a printed anode 3, a printed cathode 5, a cathode current collector 7, a separator 9 and an aqueous electrolyte contained within a flexible thin battery package, housing or enclosure 11. See FIG. 1A and FIG. 1B.
Example 2 Co-planar electrode assembly cells were constructed according to this example. An anode was printed using the same anode ink formulation and substrate as in Example 1, and a 0.002 inch thick zinc mesh anode current collector as in Example 1 was affixed to the substrate in the same manner as in Example 1. The anode 34 was screen printed to a size of 50.4 millimeters�6.8 millimeters with an average thickness of 0.109 millimeters. The cathode current collector and cathode were stenciled using the same formulation as in Example 1 onto the same substrate as the anode to form a co-planar electrode arrangement. The cathode current collector 35 was stenciled to a size of 40 millimeters�27 millimeters�0.036 millimeters, while the cathode ink 37 was stenciled onto the current collector with a thickness of 0.166 millimeters. See FIG. 9. The gap between the cathode and the anode was 2.0 millimeters. The electrode surfaces were wetted up with the same electrolyte as in Example 1, and the same separator paper as in Example 1 was introduced to provide an electrolyte soakup such that a total of 0.6 to 0.7 grams of electrolyte was introduced into the cell. The separator paper in this co-planar arrangement is sized to cover both the anode and the cathode.
Example 7 Alkaline Cells with a Polymer Separator and a Zinc Ink Having Excess +2 Zinc Ions) Co-facial cells were constructed with and without the addition of excess +2 zinc ions to the anode ink formulation to compare performance. All the cells included a copolymer separator comprising a 20:80 molar ratio of acrylic acid and sodium styrene sulphonate. The gel is formed by combining the copolymers in the above molar ratio with water so that the resulting solution is 20 weight percent copolymer, 80 weight percent water. The anode and the cathode are each initially coated with the copolymer gel to form an adhesive layer approximately 0.001 inch thick. While these layers are still wet, a free-standing co-polymer film of a thickness as indicated in Table IX was placed onto one of the wet layers and the cell was then assembled in a co-facial arrangement, with the wet co-polymer layers additionally providing adhesive properties. The free-standing film was formed by applying a doctor blade to the above gel on glass and coagulating the film by dipping the glass into a 37-40 weight percent potassium hydroxide bath.
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depositing electrolyte and separator; sealing film to confineUS6503658Jul 11, 2001Jan 7, 2003Electro Energy, Inc.Bipolar electrochemical battery of stacked wafer cellsUS6569572Aug 11, 1999May 27, 2003Yuasa CorporationLithium battery, polymer electrolyte, electrolyte material, di(meth)acrylic ester, and di(meth)acrylate polymerUS6884546Sep 11, 2000Apr 26, 2005Sony CorporationSecondary batteryUS7348096Dec 17, 2002Mar 25, 2008Eveready Battery Company, Inc.Polyethylene glycol diacrylate dissolved in a zinc chloride solution as a gelled material for carbon zinc batteryUS20020086215Nov 13, 2001Jul 4, 2002Noriyuki TamuraElectrode for lithium secondary battery and lithium secondary batteryDE19943961A1Sep 14, 1999Jun 15, 2000Yuasa Battery Co LtdThin battery used in electronic machine, has anode and cathode terminals connected to sealing portion of connectors, where sealing portion is thinner than total thickness of batteryEP0678927A1Apr 10, 1995Oct 25, 1995Matsushita Electric Industrial Co., Ltd.Alkaline batteryEP0862227A1Feb 25, 1998Sep 2, 1998Sony CorporationThin type electric cellEP1026767A1Aug 11, 1999Aug 9, 2000Mitsui Chemicals, Inc.Lithium battery, polymer electrolyte, electrolyte material, di(meth)acrylic ester, and di(meth)acrylate polymerEP1096589A1May 14, 1999May 2, 2001Mitsubishi Denki Kabushiki KaishaFlat battery and electronic deviceJP2000164033A Title not availableJP2000319381A Title not availableJP2001023695A Title not availableJPS6164077A Title not availableJPS58206048A Title not availableJPS62285954A Title not availableTW540185B Title not availableReferenced byCiting PatentFiling datePublication dateApplicantTitleUS8119278Jul 18, 2011Feb 21, 2012Eveready Battery Company, Inc.Flexible thin printed battery and device and method of manufacturing sameClassifications U.S. Classification29/623.5, 29/623.4, 29/623.1, 429/124, 429/229International ClassificationH01M2/20, H01M2/30, H01M6/12, H01M6/06, H01M6/04, H01M6/02, H01M4/24, H01M4/66, H01M2/26, H01M4/70, H01M4/62, H01M6/22, H01M4/26, H01M2/16, H01M4/06, H01M2/02, H01M4/08, H01M6/40, H01M6/00, B05D3/06, H01M4/42, H01M2/08, H01M2/18, B05D3/02, H01M4/50, H01M4/04, H01M4/02Cooperative ClassificationH01M2004/021, H01M2/1653, H01M4/663, H01M4/06, H01M4/26, H01M4/244, H01M4/0414, H01M6/40, H01M2300/0085, H01M4/625, H01M2004/028, H01M4/667, H01M6/045, H01M4/08, H01M4/50, H01M2/18, H01M2/0275, Y02E60/124, H01M4/623, H01M2300/0014, H01M4/0404, H01M4/62, H01M2004/027, H01M6/12, H01M2/0257, H01M2/0277, H01M2300/0002, H01M6/22European ClassificationH01M4/04B2, H01M4/04B12, H01M4/24C, H01M6/12, H01M4/26, H01M2/02E14, H01M4/66K2, H01M4/62B2F, H01M6/04E, H01M6/22, H01M2/02E, H01M2/16C3, H01M4/62, H01M4/50, H01M6/40, H01M4/08, H01M2/18, H01M4/06Legal EventsDateCodeEventDescriptionDec 2, 2013FPAYFee paymentYear of fee payment: 4RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google