Polymeric battery separators

Details Polymeric battery separators Polymeric battery separators

1984-05-14

1985-06-11

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer, spacer or materials for use therewith

429254, H01M 216

Patent

active

045229023

ABSTRACT:
Configurations of cross-linked or vulcanized amphophilic or quaternized block copolymer of haloalkyl epoxides and hydroxyl terminated alkadiene polymers are useful as battery separators in both primary and secondary batteries, particularly nickel-zinc batteries. The quaternized block copolymers are prepared by polymerizing a haloalkyl epoxide in the presence of a hydroxyl terminated 1,3-alkadiene to form a block copolymer that is then reacted with an amine to form the quaternized or amphophilic block copolymer that is then cured or cross-linked with sulfur, polyamines, metal oxides, organic peroxides and the like.

REFERENCES:
patent: 4224393 (1980-09-01), Feinberg et al.
patent: 4331746 (1982-05-01), Sheibley

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