Dual chemistry electrode design

Details Dual chemistry electrode design Dual chemistry electrode design

H - Electricity

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M

H01M 4/36 (2006.01) H01M 4/02 (2006.01) H01M 4/06 (2006.01) H01M 4/48 (2006.01) H01M 4/50 (2006.01) H01M 4/58 (2006.01) H01M 4/64 (2006.01) H01M 4/66 (2006.01) H01M 6/16 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2415881

A new cathode design has a first cathode active material of a relatively low energy density but of a relatively high rate capability contacted to the outer sides of first and second cathode current collectors and a second cathode active material having a relatively high energy density but of a relatively low rate capability in contact with the inner sides of the current collectors. The second cathode active material has a greater peripheral extend than the current collectors and the opposed layers of the first cathode active material between which it is sandwiched. This construction helps prevent delamination by promoting improved contact of the respective active materials to the current collectors. The present cathode design is useful for powering an implantable medical device requiring a high rate discharge application.

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