Fuel cell separator and process for producing the same

Details Fuel cell separator and process for producing the same Fuel cell separator and process for producing the same

2006-02-14

2006-02-14

Crepeau, Jonathan (Department: 1746)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000, C264S105000, C264S232000, C029S623100

Reexamination Certificate

active

06998189

ABSTRACT:
A fuel cell separator which is low in cost and high in hydrophilicity and electrical conductivity and a process for producing the fuel cell separator. The fuel cell separator is characterized in that by using a starting material for a fuel cell separator subjected to a hydrophilization treatment in a hydrophilizing gas, the surface contact angle of the fuel cell separator as measured by a sessile drop method using water is in a range of 3 to 70°; and the process of the present invention for producing a fuel cell separator is characterized in that a starting material for the fuel cell separator after molding or machining is subjected to a hydrophilization treatment in a hydrophilizing gas and thereby the surface contact angle of the fuel cell separator as measured by a sessile drop method using water is controlled at 3 to 70°.

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