Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent
1995-02-13
1996-01-30
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
429 27, 429 72, 429113, 429120, H01M 1050, H01M 1206
Patent
active
054879558
ABSTRACT:
The invention provides a multi-cell, sealed, cooled, zinc-oxygen battery, comprising a container containing a plurality of bi-cells, each cell having a housing provided with two major surfaces and accommodating a pair of oppositely-disposed, spaced-apart, air-permeable, liquid-impermeable cathodes in the form of oxygen-reduction electrodes, and defining between themselves a cavity configured to accommodate an anode of the battery and electrolyte, substantial portions of the major surfaces of the housing being removed, thus exposing major portions of the oxygen-reduction electrodes, and wherein two major surfaces are partly recessed in such a way as to form, in conjunction with a similarly-recessed outer surface of a major wall of an adjacent cell housing, an inter-cathode gas space between adjacent cells with a plurality of oxygen access openings leading thereto; an anode positioned within the cavity and comprising an active zinc anode component compacted into a rigid static bed of active anode material of tight interparticulate structure, the anode being provided with at least one internal fluid-carrying passage with inlet and outlet means, for circulating cooling fluid therethrough; a dead space volume between inner surfaces of the housing and the plurality of bi-cells; and pressurized oxygen supply means for feeding oxygen to the dead space volume, for consumption in the inter-cathode gas spaces.
REFERENCES:
patent: 4620111 (1986-10-01), McArthur et al.
patent: 4640874 (1987-02-01), Kelm
patent: 5242763 (1993-09-01), Konishi et al.
patent: 5366822 (1994-11-01), Korall et al.
Dechovich Boris
Goldstein Jonathan R.
Harats Yehuda
Korall Menachem
Koretz Binyamin
Electric Fuel (E.F.L.) Ltd.
Skapars Anthony
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