Stamped bipolar plate for PEM fuel cell stack

Details Stamped bipolar plate for PEM fuel cell stack Stamped bipolar plate for PEM fuel cell stack

2005-05-17

2005-05-17

Crepeau, Jonathan (Department: 1746)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000

Reexamination Certificate

active

06893770

ABSTRACT:
A bipolar plate assembly for a PEM fuel cell having a serpentine flow field formed on one side and interdigitated flow field formed on the opposite side such that a single plate member are usable for as an anode current collector and a cathode current collector of adjacent fuel cells. The bipolar plate assembly further includes a staggered seal arrangement to direct gaseous reactant flow through the fuel cell such that the seal thickness maximized while the repeat distance between adjacent fuel cells is minimized.

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PCT Publication No. WO/0017952, published Mar. 30, 2000.
PCT Publication No. WO/94/09519, published Apr. 28, 1994.

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