Battery separator

Details Battery separator Battery separator

1976-04-19

1977-05-17

Mack, John H.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer, spacer or materials for use therewith

260897C, H01M 216

Patent

active

040243230

ABSTRACT:
A battery separator comprising a microporous sheet formed substantially of a mixture of polymeric constituents. One of the polymeric constituents is an ultra high molecular weight polyolefin having a standard load melt index of substantially 0 and an intrinsic viscosity greater than about 3.0. The other polymeric constituent is either a copolymer of an olefin and an ethylenically unsaturated monocarboxylic acid selected from the group consisting of acrylic acid and methacrylic acid, or a blend of a low molecular weight polyolefin and a polymer of acrylic or methacrylic acid.

REFERENCES:
patent: 3427206 (1969-02-01), Scardaville
patent: 3536796 (1970-10-01), Rock
patent: 3869422 (1975-03-01), Dawes
patent: 3876735 (1975-04-01), Bontenck

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