Cell having mixed solid cathode materials for controlling...

Details Cell having mixed solid cathode materials for controlling... Cell having mixed solid cathode materials for controlling...

H - Electricity

01

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319/94

H01M 4/06 (2006.01) H01M 4/36 (2006.01) H01M 6/50 (2006.01)

Patent

CA 1169121

D- 13242 CELL HAVING MIXED SOLID CATHODE MATERIALS FOR CONTROLLING CELL EXPANSION ON DISCHARGE ABSTRACT OF THE INVENTION A galvanic cell employing a consumable anode such as lithium, a cathode that expands during cell discharge and an elec- trolyte, wherein the improvement is that the cathode is composed of a physical mixture of at least two solid active materials having different expansion characteristics on cell discharge and selected such that the cathode mixture has a volumetric expansion substantially equal to the volumetric contraction of the anode thereby providing a cell that will have a substantially constant physical configuration during discharge. S P E C I F I C A T IO N 1.

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