Fuel cell stack and method of pressing together the same

Details Fuel cell stack and method of pressing together the same Fuel cell stack and method of pressing together the same

1996-07-03

1998-04-07

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 38, 429 44, H01M 810

Patent

active

057362696

ABSTRACT:
A fuel cell stack having unit cells and separators, in which each unit cell comprises a solid polymer electrolyte membrane having a pair of electrode catalysts attached on both surfaces, and a pair of collectors, each made of a rigid body, being in contact with respective electrode catalysts, and each of the separators comprises a pair of pressure generating plates defining therebetween a pressure chamber to which a pressurized fluid is introduced, the pressure generating plates being deformed by the pressurized fluid and pressed against the adjacent respective collectors.

REFERENCES:
patent: 4826742 (1989-05-01), Reiser
patent: 5262249 (1993-11-01), Beal et al.
patent: 5346780 (1994-09-01), Suzuki

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