Shutdown methods and designs for fuel cell stacks
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United States of America Patent
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Jun 7, 2011
Grant Date -
Sep 21, 2006
app pub date -
Mar 13, 2006
filing date -
Mar 11, 2005
priority date (Note) -
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Abstract
Improved water distribution can be obtained within the cells of a fuel cell series stack by maintaining a suitable temperature difference between the cathode and anode sides of each cell in the stack during shutdown. This can be accomplished by thermally insulating the “hot” end and sides of the stack and by providing a thermal mass adjacent to the “hot” end.
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