Battery separator and a battery

Details Battery separator and a battery Battery separator and a battery

1993-03-25

1994-03-01

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer or spacer insulating structure

429249, H01M 216

Patent

active

052906450

ABSTRACT:
A battery separator comprising a sheet material containing a polyvinyl alcohol cross-linked by a cross-linking group of the general formula (I): ##STR1## wherein A represents a group of --CH.dbd.CH--R.sub.1 or ##STR2## R.sub.1 represents an optionally substituted quaternary nitrogen-containing aromatic heterocyclic group, R.sub.2 and R.sub.3 independently represent a hydrogen atom or alkoxy group having 1 to 4 carbon atoms, m is o or 1, and n is an integer of 1 to 6, is disclosed.
The separator exhibits a good resistance to electrolyte, electrolyte holding rate, and resistant to short-circuits.

REFERENCES:
patent: 4086405 (1978-04-01), Gadessaud
patent: 4157423 (1979-06-01), Gadessaud
patent: 4277572 (1981-07-01), Fujiwara et al.
patent: 4505998 (1985-03-01), Hsu et al.

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