Electrodes for metal/air batteries and bipolar metal/air batteri

Details Electrodes for metal/air batteries and bipolar metal/air batteri Electrodes for metal/air batteries and bipolar metal/air batteri

1990-12-31

1992-09-08

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 42, 429210, 429 34, H01M 486

Patent

active

051457520

ABSTRACT:
The invention provides a bipolar electrode for use in a primary metal/air battery of the type having a metallic slurry anode, the electrode comprising a current-collecting, electrolyte-impervious metallic structure having a first surface for collecting current from the metallic slurry anode, and a metallic air cathode spaced from the structure and having a plurality of electrically-conductive protrusions extending at least from a central area of a first surface thereof and attached to a second surface of the structure, a second surface of the air cathode being provided with an inner hydrophobic waterproof barrier layer which is impermeable to electrolyte but permeable to oxygen gas and coated with an outer active catalytic layer.

REFERENCES:
patent: 3288652 (1966-11-01), Leavitt
patent: 4126733 (1978-11-01), Doniat
patent: 4463064 (1984-07-01), Ruch et al.
patent: 4503132 (1985-03-01), Struther
patent: 4814240 (1989-03-01), Zaromb

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