Long-life alkaline primary cell having low water content

Details Long-life alkaline primary cell having low water content Long-life alkaline primary cell having low water content

1979-07-06

1980-06-24

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer or spacer insulating structure

429162, 429206, H01M 604

Patent

active

042095743

ABSTRACT:
A flat, long-life alkaline primary cell having a low water content comprises a positive electrode of mercuric oxide or silver oxide, a negative electrode of amalgamated zinc or cadmium, and separator layers disposed between the electrodes. The positive electrode lies upon a disc of nickel screening. Flanged edges of two of the separator layers are gripped between a cover and a sealing ring. The electrolyte absorbed by the separator layers is a mixture of sodium hydroxide, potassium hydroxide, and rubidium hydroxide. The number of moles of water per mole of alkali hydroxide is 2.0-2.7 for sodium hydroxide, 2.4-3.1 for potassium hydroxide, and 2.8-4.0 for rubidium hydroxide.

REFERENCES:
patent: 3427203 (1969-02-01), Fletcher
patent: 4011103 (1977-03-01), Kordesch
patent: 4015055 (1977-03-01), Langan et al.
patent: 4048405 (1977-09-01), Megahed
patent: 4136236 (1979-01-01), Ruetschi

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