Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2005-11-01
2005-11-01
Ryan, Patrick Joseph (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C429S006000
Reexamination Certificate
active
06960404
ABSTRACT:
The present invention relates to an electrochemical cell having the separator assembly that comprises a fluid distribution means comprising wicking material on the cathode side of a membrane electrode assembly (MEA). The wicking material transports liquids internally within the fuel cell; promotes humidification of the membrane; and provides a self-regulating cooling system for the fuel cell. The wicking material further forms gas flow channels for introducing gases to and from the MEA. Other preferred aspects of the present invention include methods of cooling the fuel cell by evaporation and/or vaporization at the cathode side.
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General Motors Corporation
Harness & Dickey & Pierce P.L.C.
Parsons Thomas H.
Ryan Patrick Joseph
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