System and method of operation of a fuel cell system and of ceasing the same for inhibiting corrosion
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United States of America Patent
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Issued Date -
Sep 6, 2007
app pub date -
Feb 7, 2006
filing date -
Feb 7, 2006
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Abstract
An electrochemical system is provided, the electrochemical system comprising a fuel cell stack, the fuel cell stack comprising at least one fuel cell, each fuel cell having at least one membrane electrode assembly interposed between an anode flow field plate and a cathode flow field plate, each membrane electrode assembly including an ion exchange membrane interposed between an anode electrode layer and a cathode electrode layer, wherein at least a portion of at least one of the anode electrode layers of the fuel cells is in fluid communication with an accumulating device. The accumulating device is operable to accumulate and dispense at least one of hydrogen, oxygen, and nitrogen. A method of ceasing operation of the electrochemical system is also disclosed.
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