Method of making air cathode material having catalytically activ

Details Method of making air cathode material having catalytically activ Method of making air cathode material having catalytically activ

1994-02-01

1995-01-03

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429 29, 429 41, 429 44, 2521821, H01M 436, H01M 488

Patent

active

053785622

ABSTRACT:
A method of making an air cathode material for a metal-air cell is provided. In the air cathode material of the present invention, manganese compounds of valence state +2 act as catalysts for the reduction of oxygen, and are distributed substantially evenly throughout a carbon matrix. Manganese compounds of valence state +2 form between carbon particles after the carbon particles are added to an aqueous solution of potassium permanganate.

REFERENCES:
patent: 3948684 (1976-04-01), Armstrong
patent: 4197362 (1980-04-01), Schmidberger et al.
patent: 4256545 (1981-03-01), Deborski
patent: 4789561 (1988-12-01), Schafer et al.
patent: 4894296 (1990-01-01), Borbely et al.
patent: 4906535 (1990-03-01), Hoge
patent: 5032473 (1991-07-01), Hoge
"Carbon-Air Electrode With Regenerative Short Time Overload Capacity," Zoltowski et al., Mar. 1973, Journal of Applied Electrochemistry, vol. 3, pp. 271-283.

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