Manufacturing of zinc-alkaline batteries

Details Manufacturing of zinc-alkaline batteries Manufacturing of zinc-alkaline batteries

1994-04-11

1995-01-24

Willis, Jr., Prince

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429229, H01M 402

Patent

active

053842146

ABSTRACT:
A non-pollution zinc-alkaline battery excellent in storage stability can be obtained by using, in formulation for negative electrode, a zinc alloy which contains at least one element selected from the group consisting of bismuth, lithium, calcium and aluminum which is free from mercury, lead, cadmium, indium and thallium is used as an active material and yttrium hydroxide or yttrium oxide optimized in a starting material therefor, particle size and weight loss on heat decomposition as an inorganic inhibitor. The storage stability of the battery can be further improved by adding to the above formulation for a negative electrode a proper amount of a surfactant having a polyethylene oxide group in hydrophilic group and a perfluoroalkyl group in oleophilic group as an organic inhibitor.

REFERENCES:
patent: 4735876 (1988-04-01), Miura et al.
patent: 5128222 (1992-07-01), Yoshizawa et al.
patent: 5168018 (1992-12-01), Yoshizawa et al.
Chemical Abstracts, vol. 116, No. 6, Feb. 10, 1992. Columbus, Ohio, Fujioka, Tokuyuki et al. "Manufacture of Paste-Type Cadmium Anodes for Alkaline Secondary Batteries", p. 156, abstract No. 44 139v & JP Kokai Tokkyo Koho, JP 03-192 655.

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