A battery, comprising: a plurality of battery cells, at least one battery cell of the plurality of battery cells comprising: a pressure relief mechanism, the pressure relief mechanism being configured, when an internal pressure or temperature of the at least one battery cell reaches a threshold, to be actuated to release the internal pressure; and a bus component configured to electrically connect the plurality of battery cells, wherein the pressure relief mechanism and the bus component are respectively arranged on different sides of the at least one battery cell, such that emissions from the at least one battery cell are discharged in a direction away from the bus component when the pressure relief mechanism is actuated; wherein the battery further comprises: an attachment component adapted to be attached to the battery cell by means of an adhesive; an isolation component, the isolation component being configured to prevent the adhesive from being applied between the attachment component and the pressure relief mechanism; and a thermal management component, the thermal management component being configured to accommodate a fluid to adjust temperatures of the plurality of battery cells, and the thermal management component being configured to be damaged when the pressure relief mechanism is actuated, such that the emissions from the battery cell pass through the thermal management component; wherein the isolation component comprises: a main body; and a protrusion, wherein the protrusion protrudes from the main body in a protruding direction, the protrusion is configured to be aligned with the pressure relief mechanism in the protruding direction when the main body is attached to the attachment component, and the peripheral size of the protrusion is greater than or equal to that of the pressure relief mechanism; the attachment component comprises the thermal management component. a pressure relief mechanism, the pressure relief mechanism being configured, when an internal pressure or temperature of the at least one battery cell reaches a threshold, to be actuated to release the internal pressure; and a bus component configured to electrically connect the plurality of battery cells, wherein the pressure relief mechanism and the bus component are respectively arranged on different sides of the at least one battery cell, such that emissions from the at least one battery cell are discharged in a direction away from the bus component when the pressure relief mechanism is actuated; wherein the battery further comprises: an attachment component adapted to be attached to the battery cell by means of an adhesive; an isolation component, the isolation component being configured to prevent the adhesive from being applied between the attachment component and the pressure relief mechanism; and a thermal management component, the thermal management component being configured to accommodate a fluid to adjust temperatures of the plurality of battery cells, and the thermal management component being configured to be damaged when the pressure relief mechanism is actuated, such that the emissions from the battery cell pass through the thermal management component; wherein the isolation component comprises: a main body; and a protrusion, wherein the protrusion protrudes from the main body in a protruding direction, the protrusion is configured to be aligned with the pressure relief mechanism in the protruding direction when the main body is attached to the attachment component, and the peripheral size of the protrusion is greater than or equal to that of the pressure relief mechanism; the attachment component comprises the thermal management component. an attachment component adapted to be attached to the battery cell by means of an adhesive; an isolation component, the isolation component being configured to prevent the adhesive from being applied between the attachment component and the pressure relief mechanism; and a thermal management component, the thermal management component being configured to accommodate a fluid to adjust temperatures of the plurality of battery cells, and the thermal management component being configured to be damaged when the pressure relief mechanism is actuated, such that the emissions from the battery cell pass through the thermal management component; wherein the isolation component comprises: a main body; and a protrusion, wherein the protrusion protrudes from the main body in a protruding direction, the protrusion is configured to be aligned with the pressure relief mechanism in the protruding direction when the main body is attached to the attachment component, and the peripheral size of the protrusion is greater than or equal to that of the pressure relief mechanism; the attachment component comprises the thermal management component. a main body; and a protrusion, wherein the protrusion protrudes from the main body in a protruding direction, the protrusion is configured to be aligned with the pressure relief mechanism in the protruding direction when the main body is attached to the attachment component, and the peripheral size of the protrusion is greater than or equal to that of the pressure relief mechanism; the attachment component comprises the thermal management component.