Separators for secondary cells and similar systems

Details Separators for secondary cells and similar systems Separators for secondary cells and similar systems

1978-12-12

1980-09-30

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer, spacer or materials for use therewith

429251, H01M 216

Patent

active

042256577

ABSTRACT:
The present invention relates to a separator for use in alkaline secondary zinc cells and for use in electrochemical systems where permeation of hydroxyl ions is desired and where permeation of zincate ions is to be inhibited, comprising an inert support to which there is applied a layer comprising a polymeric binder and a carbonate or hydroxycarbonate of nickel, cerium, lanthanum, magnesium or calcium, or a mixture of any of these or which comprises a self-supporting structure of such polymeric binder or matrix-forming material and such carbonate or hydroxycarbonate. There may be incorporated in such separator electrocatalysts and fillers or surface extenders. The invention also relates to the process of production of such membranes.

REFERENCES:
patent: 1192889 (1916-08-01), Gray
patent: 3466669 (1966-06-01), Arrance et al.
patent: 3479266 (1969-11-01), Rajan et al.
patent: 3516862 (1970-06-01), Grinten
patent: 3970472 (1976-07-01), Steffensen
patent: 4007059 (1977-02-01), Witherspoon et al.

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