Closure assembly for electrochemical cells

Details Closure assembly for electrochemical cells Closure assembly for electrochemical cells

H - Electricity

01

M

H01M 2/04 (2006.01) H01M 2/12 (2006.01) H01M 2/34 (2006.01) H01M 6/16 (2006.01) H01M 6/50 (2006.01)

Patent

CA 2752828

A closure assembly for an electrochemical cell includes a positive temperature coefficient (PTC) device and a dual wall gasket that isolates the PTC device from primary axial compression forces present in the closure assembly. A method for closing an electrochemical cell to remove the PTC device from primary axial compression is also contemplated.

L'invention porte sur un ensemble de fermeture pour pile électrochimique qui comprend un dispositif à coefficient positif de température (PTC) et un joint à double paroi qui isole le dispositif PTC des forces de compression axiale primaires présentes dans l'ensemble de fermeture. Un procédé de fermeture d'une pile électrochimique pour protéger le dispositif PTC contre une compression axiale primaire est également décrit.

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