Invention Grant
- Patent Title: Development of high energy surfaces on stainless steels for improved wettability
- Patent Title (中): 在不锈钢上开发高能表面以改善润湿性
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Application No.: US11341354Application Date: 2006-01-27
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Publication No.: US08097377B2Publication Date: 2012-01-17
- Inventor: Keith E. Newman , Mahmoud H. Abd Elhamid , Charles H. Olk , Thomas A. Trabold , Gayatri Vyas
- Applicant: Keith E. Newman , Mahmoud H. Abd Elhamid , Charles H. Olk , Thomas A. Trabold , Gayatri Vyas
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Agency: Harness, Dickey & Pierce, P.L.C.
- Main IPC: H01M8/04
- IPC: H01M8/04 ; H01M8/24 ; H01M2/38 ; H01M2/40 ; B32B15/00 ; B32B15/01 ; B32B15/20 ; F16C33/12

Abstract:
A bi-polar plate is provided for a fuel cell stack. The bi-polar plate has improved surface wettability. The bi-polar plate includes a body including at least approximately ninety percent by weight of a metal and defining at least one flow channel. At least about 0.05 percent and up to 100 percent by weight of silicon is disposed on a surface of the at least one flow channel to form a high energy surface to form a high energy surface for the bi-polar plate. This can be achieved by adding from 0.5 to 10 weight % silicon to the steel. The percent of silicon is pre-determined based on a desired wettability of the high energy surface of the at least one flow channel.
Public/Granted literature
- US20070178356A1 Development of high energy surfaces on stainless steels for improved wettability Public/Granted day:2007-08-02
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