Inorganic-organic separators for alkaline batteries

Details Inorganic-organic separators for alkaline batteries Inorganic-organic separators for alkaline batteries

1976-09-07

1978-04-18

Lusignan, Michael R.

Coating processes

With post-treatment of coating or coating material

Heating or drying

427385C, 429254, H01M 302

Patent

active

040852415

ABSTRACT:
There is disclosed a flexible separator for use between the electrodes of Ni-Cd and Ni-Zn batteries using alkaline electrolytes. The separator is made by coating a porous substrate such as sheets or mats of asbestos or other materials with a battery separator composition. The coating material includes a rubber-based resin copolymer, a plasticizer and inorganic and organic fillers which comprise 55% by volume or less of the coating as finally dried. One or more of the filler materials, whether organic or inorganic, is preferably active with the alkaline electrolyte to produce pores in the separator coating. The plasticizer is an organic additive such as a material which is hydrolyzed by the alkaline electrolyte to improve conductivity of the separator coating.

REFERENCES:
patent: 3239478 (1966-03-01), Harlan
patent: 3542596 (1970-11-01), Arrance
patent: 3625771 (1971-12-01), Arrance et al.
patent: 3639508 (1972-02-01), Kambeur
patent: 3749604 (1973-07-01), Langer et al.
patent: 3861963 (1975-01-01), Arrance et al.
patent: 3880953 (1975-04-01), Downey
patent: 3917607 (1975-11-01), Crossland et al.

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