发明名称 |
Edge stress relief in diffusion media |
摘要 |
A diffusion media for use in a PEM fuel cell which includes a relieved edge region relative to the interior region of the diffusion media. The outer perimeter or portion of the diffusion media that will interface with a sealing gasket is pre-compressed. The pre-compressed diffusion media lowers the compression stress on the MEA at the gasket interfaces, enabling a more uniform compression on the entirety of the MEA surfaces during the build, compression, and later operation of a fuel cell stack.
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申请公布号 |
US7597983(B2) |
申请公布日期 |
2009.10.06 |
申请号 |
US20040925754 |
申请日期 |
2004.08.25 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
LAI YEH-HUNG;ROCK JEFFREY A;SOMPALLI BHASKAR;MILGATE ROBERT |
分类号 |
H01M2/00;H01M2/08 |
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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