Water management system for fuel cell
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United States of America Patent
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Apr 20, 2004
Grant Date -
Jul 4, 2002
app pub date -
Feb 8, 2002
filing date -
Mar 12, 1999
priority date (Note) -
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Abstract
An improved water management system for PEM fuel cells is provided. Catalyst layers are disposed on both sides of a proton exchange membrane. Porous plates are positioned adjacent the catalyst layers. Water transport plates are positioned adjacent the porous plates and the reactant gas are humidified at their inlets, in one embodiment by fins, while moisture is removed in the fuel flow path and at the oxidant outlet, in one embodiment by other fins.
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