- 专利标题： Method of making a gas diffusion media and quality controls for same
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申请号： US10342976申请日： 2003-01-15
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公开(公告)号： US06928893B2公开(公告)日： 2005-08-16
- 发明人: Joerg Roth
- 申请人： Joerg Roth
- 申请人地址： US MI Detroit
- 专利权人： General Motors Corporation
- 当前专利权人： General Motors Corporation
- 当前专利权人地址： US MI Detroit
- 代理机构： Harness, Dickey & Pierce, P.L.C.
- 主分类号： G01N13/04
- IPC分类号： G01N13/04 ; G01N15/08 ; H01M2/02 ; G01N33/00
摘要：
The present invention discloses various methods in which a quality of a diffusion media for use in a fuel cell assembly can be qualitatively evaluated. The material constant, an internal contact angle, a ratio of high and low energy pores, and an external contact angle can be calculated for the diffusion media and compared to a predetermined standard to evaluate the quality of the diffusion media.