One piece fuel cell separator plate

Details One piece fuel cell separator plate One piece fuel cell separator plate

1998-03-03

2000-03-21

Valentine, Donald R.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 38, H01M 208, H01M 214

Patent

active

060400765

ABSTRACT:
A separator plate for an internally manifolded fuel cell stack comprising a centrally disposed active region, a peripheral seal region, and forming at least one pair of perforations substantially geometrically disposed on opposite sides of the centrally disposed active region. The peripheral seal region comprises a peripheral seal structure on each face of the separator plate completely around the periphery of each said face. A manifold seal region in each face completely encloses each perforations, the manifold seal region comprising conduits on one of said faces for communication of a gas between the centrally disposed active region and at least the one pair of perforations. The separator plate is comprised of one sheet of a material suitable for use as a separator plate, preferably a pressed sheet metal.

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