Enhancement of electrochemical cell performance
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United States of America Patent
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Mar 22, 2005
Grant Date -
N/A
app pub date -
Mar 5, 2002
filing date -
Mar 5, 2002
priority date (Note) -
Expired
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Abstract
Electrodes for an electrochemical cell such as a proton exchange membrane (PEM) fuel cell are treated with steam or a hot solution before they are bonded to a membrane to form a membrane-electrode assembly. Such a treatment effectively increases the performance of the electrodes when they are subsequently tested within the PEM fuel cell. Improved performance is also observed using this technique with a catalyst-coated membrane and a membrane-electrode assembly.
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