Acid-modified polybenzimidazole fuel cell elements

Details Acid-modified polybenzimidazole fuel cell elements Acid-modified polybenzimidazole fuel cell elements

1995-10-27

1997-02-04

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

204296, H01M 810

Patent

active

055996396

ABSTRACT:
An electrolytic membrane for use in fuel cell includes a fluid-imbibed acidified polybenzimidazole resin. The resin is alkyl or aryl sulfonated or alkyl or aryl phosphonated, preferably with a degree of substitution of from 15 to about 60 per cent.

REFERENCES:
patent: 3528858 (1970-09-01), Hodgdon et al.
patent: 4797185 (1989-01-01), Polak et al.
patent: 4814399 (1989-03-01), Sansone et al.
patent: 5403675 (1995-04-01), Ogata et al.

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