Coated open-celled microporous membranes

Details Coated open-celled microporous membranes Coated open-celled microporous membranes

1980-02-27

1981-11-03

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429229, 429248, 429250, 429251, 429144, H01M 214

Patent

active

042986664

ABSTRACT:
The present invention provides a microporous membrane having deposited on at least one surface thereof a porous, uniform coating of a low hydrogen over-potential material. The coated microporous membrane is particularly suited for use as a battery separator in a rechargeable zinc electrode containing battery, which is resistant to penetration by zinc dendrites and is capable of increasing the uniformity of current density upon recharging of the battery.
A battery employing said coated microporous membrane as a battery separator as well as a process for using said coated microporous membrane is also provided.

REFERENCES:
patent: 3235473 (1966-02-01), Le Duc
patent: 3472700 (1969-10-01), Kollman et al.
patent: 3539396 (1970-11-01), Wagner
patent: 3793060 (1974-02-01), Weininger et al.
patent: 3970472 (1976-07-01), Steffensen
patent: 4192908 (1980-03-01), Himy et al.
patent: 4217404 (1980-08-01), Verzwyvelt

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