Fuel cell stack and method of pressing together the same

Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation

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429 26, 429 37, 429 38, H01M 810

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active

054199808

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: 4317864 (1982-03-01), Strasser
patent: 4692391 (1987-09-01), Hirota
patent: 4769297 (1988-09-01), Reiser et al.
patent: 4826741 (1989-05-01), Aldhart et al.
patent: 4973531 (1990-11-01), Zaima et al.
patent: 4997728 (1991-03-01), Onoda et al.
patent: 5009968 (1991-04-01), Guthrie et al.
patent: 5185220 (1993-02-01), Schora
patent: 5262249 (1993-11-01), Beal et al.
Patent Abstracts of Japan, vol. 13, No. 92 (E-722) Mar. 3, 1989, for Kokai No. 63-269458.
Search Report (1993) (month not available).
English language Abstract of JP63-269458 (Nov. 1988).

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