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Title:
FUEL CELL USING VARIABLE POROSITY GAS DIFFUSION MATERIAL AND METHOD OF OPERATION
Document Type and Number:
WIPO Patent Application WO2003038924
Kind Code:
A3
Abstract:
A fuel cell (100) includes a membrane electrode assembly (110) located together with a layer of porous gas diffusion material (150). The membrane electrode assembly (110) is activated by supplying reactants thereto. The porous gas diffusion material layer (150) operates to selectively limit the amount of reactants reaching localized areas of the membrane electrode assembly (110) in order to reduce hot spots.

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Inventors:
MUTHUSWAMY SIVAKUMAR
PRATT STEVEN D
KELLEY RONALD J
Application Number:
PCT/US2002/033871
Publication Date:
October 09, 2003
Filing Date:
October 23, 2002
Export Citation:
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Assignee:
MOTOROLA INC (US)
International Classes:
H01M4/94; H01M4/86; H01M8/02; H01M8/04; H01M8/10; H01M4/92; H01M; (IPC1-7): H01M8/02; H01M8/10; H01M4/86
Foreign References:
US20020182464A12002-12-05
JPH06267555A1994-09-22
US6106965A2000-08-22
US5998058A1999-12-07
US20020114990A12002-08-22
US20020127452A12002-09-12
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