Primary aluminum-air battery

Details Primary aluminum-air battery Primary aluminum-air battery

1989-04-07

1990-05-15

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 29, 429 34, 429 86, 429210, 429 26, H01M 1206

Patent

active

049257447

ABSTRACT:
An aqueous electrolyte aluminum-air battery comprises one or more cells, each cell comprising a frame which defines an electrolyte chamber. The frame is made of a rigid material inactive to the electrolyte. The cell has a consumable aluminum anode and an air cathode spaced from the anode by said electrolyte chamber. Means are provided for admitting electrolyte solution into the electrolyte chamber. A vent exposes the electrolyte chamber to atmosphere. A hydrophobic membrane which is impermeable to the passage of the electrolyte but permeable to the passage of hydrogen closes the vent. A surface of each cell anode is exposed to the flow of air. The amount of surface exposed is effective to dissipate heat generated at the anode.

REFERENCES:
patent: 3717505 (1973-02-01), Unkle, Jr.
patent: 4246324 (1981-01-01), de Nora et al.
patent: 4389466 (1983-06-01), Joy
patent: 4626482 (1986-12-01), Hamlen et al.

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