METHOD FOR TESTING THE IMPERMEABILITY OF A FUEL CELL STACK
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United States of America Patent
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Issued Date -
Mar 11, 2010
app pub date -
Mar 31, 2008
filing date -
Apr 4, 2007
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Abandoned
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Abstract
The invention relates to a method for testing the leak-tightness of a fuel cell stack comprising the steps of operating the fuel cell stack using defined gas supply rates, a defined modification of at least one gas supply rate, detecting at least one cell or cell group voltage and analysing the variation in time of the at least one cell or cell group voltage.
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