Method of preserving polymer electrolyte fuel cell stack and preservation assembly of polymer electrolyte fuel cell stack
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United States of America Patent
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May 7, 2013
Grant Date -
Aug 23, 2012
app pub date -
Jan 30, 2012
filing date -
Jun 14, 2004
priority date (Note) -
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Abstract
A preservation assembly of a PEFC stack which is capable of sufficiently inhibiting degradation of performance of the PEFC stack particularly during a time period that elapses from when the stack is placed in the uninstalled state until it is placed in the installation position and is practically used. The PEFC stack is provided with an oxidizing agent passage having an inlet and an outlet and extending through a cathode and a reducing agent passage having an inlet and an outlet and extending through an anode. The PEFC stack is preserved in an uninstalled state in such a manner that an interior of the oxidizing agent passage and an interior of the reducing agent passage are set in a pressure-reduced state.
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