METHOD OF OPERATING A FUEL CELL STACK AT LOW PRESSURE AND LOW POWER CONDITIONS
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May 13, 2008
filing date -
Nov 18, 2005
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Abstract
A method of operating a low pressure drop fuel cell stack comprising a plurality of low pressure drop fuel cells wherein during low pressure and low power operation, a heat transfer rate of a cathode flow field plate of each fuel cell is greater than a heat transfer rate of an anode flow field plate of the same fuel cell. Thus, a temperature gradient is created between an anode electrode and a cathode electrode of each fuel cell, as well as reactant fluids in at least one anode flow field and at least one cathode flow field of the same fuel cell.
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