Polymer electrolyte and process for producing the same

Details Polymer electrolyte and process for producing the same Polymer electrolyte and process for producing the same

1997-12-23

2000-07-11

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429314, 521 33, H01M 810

Patent

active

060870311

ABSTRACT:
A polymer electrolyte comprising a sulfonated polyethersulfone having an ion-exchange group equivalent weight of 870 to 5000 g/mol, which is obtainable by sulfonating a polyethersulfone having the structural unit represented by the following structural formula, ##STR1## The polymer electrolyte is cheap, easily mold-processable by virtue of soluble property in organic solvent and thermoplastic property, easily film-processable, highly water-resistant, and suitable for a fuel cell.

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patent: 5271813 (1993-12-01), Linkous
patent: 5378550 (1995-01-01), Doddapaneni et al.
patent: 5403675 (1995-04-01), Ogata et al.
patent: 5523181 (1996-06-01), Stonehart et al.
patent: 5795496 (1998-08-01), Yen et al.
A. Linkous et al., Characterization of Sulvonic Acids of High Temperature Polymers as Membranes for Water Electrolysis, pp. 122-123. (1993)(Month Unknown).

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