High rate carbon cathode, method of making, and...

Details High rate carbon cathode, method of making, and... High rate carbon cathode, method of making, and...

H - Electricity

01

M

319/35, 319/71

H01M 4/08 (2006.01) H01M 4/96 (2006.01) H01M 6/14 (2006.01)

Patent

CA 1149449

Abstract of the Disclosure A high rate carbon cathode is made by mixing a carbon powder having a surface area of about 1000 square meters/gram with polytetrafluoroethylene and a sufficient amount of water to form a coherent mixture. The mixture is applied to an electrically conductive screen; the cathode formed while wet to an intermediate thickness, the cathode vacuum dried at about 100 degrees C. and the cathode cold compressed to obtain a final electrode porosity of greater than 80 percent. The cathode can be used in lithium primary cell using a solution of an inorganic lithium salt in sulfuryl chloride as the electrolyte.

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