Rechargeable alkaline silver-zinc cell with improved negative el

Details Rechargeable alkaline silver-zinc cell with improved negative el Rechargeable alkaline silver-zinc cell with improved negative el

1996-10-02

1998-06-30

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429229, 429206, 429219, H01M 424

Patent

active

057731764

ABSTRACT:
Substantial improvements to the cycle life of silverzinc cells were obtained by the addition of small amounts of bismuth oxide (Bi.sub.2 O.sub.3) to the negative zinc electrode, in conjunction with cadmium oxide (CdO) and lead oxide (PbO). These improvements, which can be extended to other zinc-based alkaline batteries, especially nickel-zinc and zinc-air, can also be realized in conjunction with other metal oxides and Bi.sub.2 O.sub.3, has the additional advantage of being non-toxic.

REFERENCES:
patent: 4327157 (1982-04-01), Himy et al.
patent: 5376480 (1994-12-01), Shinoda et al.

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