Manganese dioxide electrode for lithium batteries

Details Manganese dioxide electrode for lithium batteries Manganese dioxide electrode for lithium batteries

1982-03-24

1983-09-20

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

423605, 2521821, H01M 402, H01M 404

Patent

active

044056990

ABSTRACT:
A positive electrode for Li/MnO.sub.2 batteries uses as its active material .gamma.-MnO.sub.2, which differs from the structurally similar electrolytic or synthetic manganese dioxide through the absence of water and from its dehydration product, which is .beta.-MnO.sub.2, through better electrochemical utilization capability. The modified .gamma.-MnO.sub.2 is obtained by reduction of electrolytic manganese dioxide by means of hydrazine into .alpha.-MnO(OH) and by oxidation of the latter through tempering in an oxygen stream at about 280.degree. C.

REFERENCES:
patent: 4133856 (1979-01-01), Ikeda
patent: 4172183 (1979-10-01), Ruetschi
patent: 4216247 (1980-08-01), Ikeda et al.
patent: 4221853 (1980-09-01), Tye et al.
patent: 4277360 (1981-07-01), Mellors et al.

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