Metal-gas cell with electrolyte reservoir

Details Metal-gas cell with electrolyte reservoir Metal-gas cell with electrolyte reservoir

1983-10-03

1984-10-16

Lefevour, Charles F.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 66, H01M 400

Patent

active

044775407

ABSTRACT:
A metal-gas electrochemical cell is disclosed wherein electrolyte is progressively supplied from a reservoir into the electrode or cell stack as needed, so as to maintain each stack component with adequate electrolyte, as the plates "grow" and absorb electrolyte with repeated cycling. The reservoir preferably is a compressible bladder positioned between one end of the plate stack and a retaining plate. As the plate stack "grows" with repeated cycling, the bladder is slowly compressed, forcing electrolyte from the bladder through an electrolyte distribution tube located within the plate stack. One end of the electrolyte distribution tube is fixed to an end plate of the plate stack and the second end of the distribution tube may be connected to a Belleville washer or other spring which acts through the distribution tube to compress the plate stack. The elasticity of the spring permits the stack to expand as the electrodes grow.

REFERENCES:
patent: 3716708 (1973-02-01), Kaye
patent: 3867199 (1975-02-01), Dunlop et al.
patent: 3975210 (1976-08-01), Warnock
patent: 4038461 (1977-07-01), Warnock
patent: 4115630 (1978-09-01), Van Ommering et al.
patent: 4177328 (1979-12-01), Rogers
patent: 4188462 (1980-02-01), Klootevyk
patent: 4389466 (1983-06-01), Joy

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