Long life metal-air (battery and button cells therefor) cell hav

Details Long life metal-air (battery and button cells therefor) cell hav Long life metal-air (battery and button cells therefor) cell hav

1993-12-08

1995-09-19

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 3, H01M 1206

Patent

active

054514738

ABSTRACT:
A metal-air cell is disclosed that provides high currents on an intermittent basis to electrical loads connected thereto. In one embodiment of the present invention, a restrictive membrane is effectively supported by the bottom of the cathode can, and is separated from an air cathode assembly disposed within the cell by an air reservoir. The air reservoir provides sufficient oxygen to the air cathode assembly during periods of high current drain upon the cell. Upon returning to low drain conditions, the air reservoir is gradually replenished by air flowing through the restrictive membrane at a controlled rate.

REFERENCES:
patent: 4054726 (1977-10-01), Sauer
patent: 4262062 (1981-04-01), Zatsky
patent: 4620111 (1986-10-01), McArthur et al.
patent: 4640874 (1987-02-01), Kelm

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