发明名称 |
Silicone seal for bipolar plates in a PEM fuel cell |
摘要 |
Seal means for sealing a bipolar plate to a membrane in a PEM fuel cell stack. The seal includes a thin layer of a cross-linkable silicone composition disposed between the bipolar plate and the membrane. The layer is applied as a liquid to either the plate or the membrane and preferably is polymerized prior to assembly of the stack. A preferred means for applying the composition to the bipolar plate is screen printing. Preferably, the layer has a thickness between 0.001 and 0.005 inch. The resulting fuel cell stack exhibits superior leak resistance. In a currently preferred embodiment, a layer of the silicone composition is provided at interfaces between a membrane and both an anode side and a cathode side of a bipolar plate.
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申请公布号 |
US2004101735(A1) |
申请公布日期 |
2004.05.27 |
申请号 |
US20020305612 |
申请日期 |
2002.11.27 |
申请人 |
WELLS ALLAN R.;DEANGELIS GARY J.;WILLIAMS ARTHUR R. |
发明人 |
WELLS ALLAN R.;DEANGELIS GARY J.;WILLIAMS ARTHUR R. |
分类号 |
H01M2/00;H01M2/02;H01M2/08;H01M2/14;H01M6/00;H01M8/02;H01M8/10;(IPC1-7):H01M8/02 |
主分类号 |
H01M2/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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