SEPARATOR FOR POLYMER ELECTROLYTE FUEL CELL, AND POLYMER ELECTROLYTE FUEL CELL
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United States of America Patent
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Mar 22, 2013
filing date -
May 31, 2004
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Abstract
A separator for a polymer electrolyte fuel cell, which contains electrically conductive carbon and a binder that binds the electrically conductive carbon, comprises a reaction gas passage formed on at least a main surface thereof, wherein a water droplet falling angle of a surface the reaction gas passage is not less than 5 degrees and not more than 25 degrees when a water droplet of not less than 50 μL and not more than 80 μL is dropped under a condition in which ambient temperature is not lower than 50° C. and not higher than 90° C. and relative humidity is not less than 70% and not more than 100%.
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