Direct liquid feed fuel cell stack

Details Direct liquid feed fuel cell stack Direct liquid feed fuel cell stack

2004-08-11

2009-08-25

Yuan, Dah-Wei D (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000, C429S006000, C429S006000

Reexamination Certificate

active

07579101

ABSTRACT:
A direct liquid feed fuel cell stack that includes Membrane Electrode Assemblies (MEAs) and bipolar plates. Each MEA includes an electrolyte membrane, an anode and a cathode, and the MEA is interposed between stacked bipolar plates. Each bipolar plate includes a groove with a predetermined depth enclosing an electrode region on each face of the bipolar plate, and a plurality of fuel flow holes in the electrode region to supply fuel or oxidant to a corresponding fuel channel, with a sealing member being formed on the groove. The direct liquid feed fuel cell stack prevents fuel leakage and useless fuel consumption, thereby providing longer hours of operation.

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