Fuel cell separator, process for production thereof, and...

Details Fuel cell separator, process for production thereof, and... Fuel cell separator, process for production thereof, and...

2005-09-06

2005-09-06

Alejandro, Raymond (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000, C252S511000, C264S241000

Reexamination Certificate

active

06939638

ABSTRACT:
Disclosed herein are a fuel cell separator having gas supply grooves on one side or both sides thereof which is molded from a composition composed mainly of an electrically conductive carbon powder and a binding agent, wherein the electrically conductive carbon powder is present such that its particles longer than 70 μm at maximum in the major axis direction and longer than 30 μm at maximum in the minor axis direction along the vertical cross section of the fuel cell separator occupy more than 50% of the sectional area in the vertical direction, a process for production of the separator, and a polymer electrolyte fuel cell.

REFERENCES:
patent: 3634569 (1972-01-01), Emanuelson et al.
patent: 4980250 (1990-12-01), Takahashi et al.
patent: 2002/0028368 (2002-03-01), Saito et al.
patent: 2002/0068210 (2002-06-01), Saito et al.
patent: 08-40724 (1996-02-01), None
patent: A11297337 (1999-10-01), None
patent: A2000100453 (2000-04-01), None

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