Insulative component for an electrochemical cell

Details Insulative component for an electrochemical cell Insulative component for an electrochemical cell

H - Electricity

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H01M 2/02 (2006.01) H01M 6/02 (2006.01) H01M 6/10 (2006.01) H01M 10/02 (2006.01) H01M 4/02 (2006.01) H01M 10/04 (2006.01)

Patent

CA 2394410

An insulator ring for preventing short circuit contact between the opposite polarity electrode in a case-terminal cell design is described. Typically, a lithium/silver vanadium oxide cell is built in a case- negative design with the casing serving at the negative terminal. The cathode is connected to an insulated terminal pin. In a conventional cell construction, the electrode assembly is enclosed in an insulator bag in addition to the electrode separator envelopes before being housed inside the casing. The insulator bag ensures the cathode electrode will not come into short circuit contact with the casing. In the present invention, the insulator bag is replaced with an insulator ring which only protects those portions of the electrode assembly vulnerable to short circuit contact.

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