Removal of non-conductive hydrophilic coatings from lands of fuel cell bipolar plates
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United States of America Patent
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Jul 5, 2016
Grant Date -
Dec 26, 2013
app pub date -
Aug 27, 2013
filing date -
Apr 4, 2007
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Abstract
A bipolar plate for a fuel cell is provided including a plate having an active surface with a plurality of flow channels formed therein. The plurality of flow channels have a hydrophilic coating deposited thereon and define a plurality of lands disposed therebetween. The plurality of lands is substantially free of the hydrophilic coating. Furthermore, a thickness of the hydrophilic coating is substantially constant along a length of the active surface and an edge of the hydrophilic coating adjacent the plurality of lands is substantially continuous. A method for preparing the bipolar plate is also provided.
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