Polymer electrolyte membrane fuel cell with bipolar plate having

Details Polymer electrolyte membrane fuel cell with bipolar plate having Polymer electrolyte membrane fuel cell with bipolar plate having

1997-06-25

1998-08-25

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 39, 429210, H01M 804, H01M 810

Patent

active

057981884

ABSTRACT:
A polymer electrolyte membrane fuel cell comprised of polymer electrolyte membranes, gas diffusion electrodes that sandwich the membranes, and bipolar plates operating as gas separation plates and current collectors with fuel/oxidizing agent supply and discharge passages provided by projections on both of its surfaces. A bipolar plate is employed which comprises projections on the bipolar plate of a melt-processible polymer having good fluidity and a coating on the surfaces of the bipolar plate comprising metal, metal nitride or metal carbide.

REFERENCES:
patent: 3134696 (1964-05-01), Douglas et al.
patent: 3589942 (1971-06-01), Leitz, Jr. et al.
patent: 4615955 (1986-10-01), Amakawa et al.
patent: 4755272 (1988-07-01), Plowman
Japanese Patent Abstract, Application No. 63-125897, filed May, 25, 1988 and published Nov. 29, 1989, Hitachi Ltd.
Chemical Abstract No. 1340-12, vol. 101, No. 16, Oct. 15, 1984, "Substitutes for carbon in fuel cell applications", Jalan, Vinod M.

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