发明名称 |
FUEL CELL GAS DIFFUSION LAYER |
摘要 |
The present invention provides a method of making a fuel cell gas diffusion layer comprising the steps of a) providing a carbon fiber construction; b) coating at least the upper surface of the carbon fiber construction with composition which comprises a fluoropolymer; and c) exposing the upper surface to at least one plasma, such as a silane plasma, so as to generate a hydrophilic surface layer having a thickness of no more than 1 micron. The present invention also provides a method additionally comprising the step of partially covering the upper surface with a mask having windows according to a pattern, such that the hydrophilic surface layer is applied according to the pattern. The present invention also provides a method wherein the carbon fiber construction is provided as a roll good and the step of exposing said upper surface to at least one plasma is performed in continuous roll-to-roll fashion.
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申请公布号 |
US2011027492(A1) |
申请公布日期 |
2011.02.03 |
申请号 |
US20100906567 |
申请日期 |
2010.10.18 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
MEKALA DAVID R.;STEGINK DAVID W.;DAVID MOSES M.;FRISK JOSEPH W. |
分类号 |
C08J7/18;H01M8/02;H01M8/10 |
主分类号 |
C08J7/18 |
代理机构 |
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地址 |
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