Catalytic recombination of evolved oxygen in galvanic cells

Details Catalytic recombination of evolved oxygen in galvanic cells Catalytic recombination of evolved oxygen in galvanic cells

H - Electricity

01

M

319/37, 319/46

H01M 10/52 (2006.01) H01M 4/48 (2006.01) H01M 10/34 (2006.01)

Patent

CA 1291206

CATALYTIC RECOMBINATION OF EVOLVED OXYGEN IN GALVANIC CELLS ABSTRACT OF THE DISCLOSURE: In rechargeable, electrochemical cells, oxygen may evolve on charge, overcharge or any reversal of polarity. The invention concerns an auxiliary, electrochemical, transfer electrode to catalyze the recombination of such oxygen with the anode mass. The auxiliary electrode comprises porous carbon bonded with PTFE and is used in a cell having a zinc anode, a metal oxide cathode and an aqueous alkaline electrolyte contacting both anode and cathode.

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