FUEL CELL WITH SELECTIVELY CONDUCTING ANODE COMPONENT
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United States of America Patent
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Issued Date -
Jan 17, 2013
app pub date -
Dec 22, 2010
filing date -
Dec 22, 2009
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Abstract
To reduce degradation of a solid polymer fuel cell during startup and shutdown, a selectively conducting component is incorporated in electrical series with the anode components in the fuel cell. The component is characterized by a low electrical resistance in the presence of hydrogen or fuel and a high resistance in the presence of air. High cathode potentials can be prevented by integrating such a component into the fuel cell. A suitable selectively conducting component can comprise a layer of selectively conducting material, such as a metal oxide.
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