Hermetically-sealed alkaline battery

Details Hermetically-sealed alkaline battery Hermetically-sealed alkaline battery

1988-06-27

1990-01-30

Kalafut, Stephen J.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429222, 429223, H01M 432, H01M 604

Patent

active

048973246

ABSTRACT:
Alkaline Ni/Cd round cells (button cells) which are able to withstand long-term overloading with a relatively high current (five-hour current) for a practically unlimited time and still deliver approximately their rated capacity on discharge with an equal current after 12 months. The button cells of the invention comprise a negative electrode tablet provided with an auxiliary electrode comprising activated carbon integrated in the nickel wire gauze basket and a positive electrode constituted of a material which contains 20 wt. % to 35 wt. % metallic nickel as the second largest component of the mixture after Ni(OH).sub.2, while the otherwide common conductive graphite is absent.

REFERENCES:
patent: 2934581 (1960-04-01), Dassler
patent: 3775273 (1973-11-01), Haines et al.
patent: 3870562 (1974-03-01), Catherino
patent: 3951686 (1976-04-01), Ness et al.
patent: 4415636 (1983-11-01), Charkey

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