Invention Grant
- Patent Title: Removal of non-conductive hydrophilic coatings from lands of fuel cell bipolar plates
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Application No.: US14010649Application Date: 2013-08-27
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Publication No.: US09385379B2Publication Date: 2016-07-05
- Inventor: Mahmoud H. Abd Elhamid , Richard H. Blunk , Daniel J. Lisi
- Applicant: GM Global Technology Operations LLC
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Fraser Clemens Martin & Miller LLC
- Agent James D. Miller
- Main IPC: B05D5/12
- IPC: B05D5/12 ; H01M8/02 ; H01M8/10

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.
Public/Granted literature
- US20130344420A1 REMOVAL OF NON-CONDUCTIVE HYDROPHILIC COATINGS FROM LANDS OF FUEL CELL BIPOLAR PLATES Public/Granted day:2013-12-26
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