Passive recovery of liquid water produced by fuel cells
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United States of America Patent
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Oct 30, 2012
Grant Date -
Oct 2, 2008
app pub date -
Nov 6, 2007
filing date -
Nov 7, 2006
priority date (Note) -
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Abstract
Passive recovery of liquid water from the cathode side of a polymer electrolyte membrane through the design of layers on the cathode side of an MEA and through the design of the PEM, may be used to supply water to support chemical or electrochemical reactions, either internal or external to the fuel cell, to support the humidification or hydration of the anode reactants, or to support the hydration of the polymer electrolyte membrane over its major surface or some combination thereof. Such passive recovery of liquid water can simplify fuel cell power generators through the reduction or elimination of cathode liquid water recovery devices.
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