Polymer electrolyte fuel cell

Details Polymer electrolyte fuel cell Polymer electrolyte fuel cell

1998-05-12

2000-08-15

Valentine, Donald R.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 30, 429 33, 429 34, H01M 804, H01M 810, H01M 200

Patent

active

061034126

ABSTRACT:
A polymer electrolyte fuel cell comprising a polymer electrolyte membrane, an anode catalytic electrode disposed at one side of the polymer electrolyte membrane, a fuel gas being supplied to the anode catalytic electrode, a cathode electrode disposed at another side of the polymer electrolyte, an oxidation gas being supplied to the cathode catalytic electrode, control means for controlling a reduction amount of water from the cathode electrode accompanying with the oxidation gas to a sum of a water amount increased at the cathode electrode transported from the anode electrode through the polymer electrolyte membrane during a redox reaction of the fuel cell and a water amount produced by an oxidation reaction in the cathode electrode. A compact fuel cell system with a high cell performance can be accomplished.

REFERENCES:
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patent: 5441819 (1995-08-01), Voss et al.
patent: 5853910 (1998-12-01), Tomioka et al.
H.H. Voss, D.P. Wilkinson, P.G. Pickup, M.C. Johnson and V. Basura; Anode Water Removal: A Water Management and Diagnostic Technique for Solid Polymer Fuel Cells, Electrochimica Acta. vol. 40 No. 3 pp 321-328, 1995. (No Month).
S. Miachon, P. Aldebert; Internal hydration H.sub.2 /O.sub.2 100 cm.sup.2 polymer electrolyte membrane fuel cell, Journal of Power Sources; received Dec. 28, 1994, revised Feb. 16, 1995, accepted Feb. 18, 1995, pp. 31-36.
Renaut Mosdale, Gerard Gebel, Michel Pineri, Water profile determination in a running proton exchange membrane fuel cell using small-angle neutron scattering, Journal of Membrane Science, 118 (1996), pp. 269-277. (No Month).
Mahlon S. Wilson, Judith A. Valerio and Shimshon Gottesfeld, Low Platinum Loading Electrodes for Polymer Electrolyte Fuel Cells Fabricated Using Thermoplastic Ionomers, Electrochimica Acta. vol. 40 No. 3 pp. 355-363, 1995. (No Month).
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European Search Report, Application No. EP 98 10 8642 dated Jul. 30, 1998.

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