Fuel cell membrane electrode assembly with sealing surfaces

Details Fuel cell membrane electrode assembly with sealing surfaces Fuel cell membrane electrode assembly with sealing surfaces

2006-06-22

2009-06-30

Ruthkosky, Mark (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S047000

Reexamination Certificate

active

07553578

ABSTRACT:
The present invention provides a method of making a gasketed fuel cell membrane electrode assembly by simultaneously binding together the parts of the MEA, impregnating uncured elastomeric gasket material into the outer edge portions of each fluid transport layer, and substantially curing the uncured elastomeric gasket material so as to form anode-side and cathode-side gaskets. In order to form a raised-ridge microstructured contact pattern on the contact face of each gasket, patterning plates bearing a negative relief of a raised-ridge microstructured contact pattern may be positioned between the press platens and the uncured elastomeric gasket material.

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