- 专利标题： Membrane electrode assembly with gas diffusion layers having a rib porosity and method of manufacturing the same, as well as fuel cell
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申请号： US13144181申请日： 2010-08-31
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公开(公告)号： US09793555B2公开(公告)日： 2017-10-17
- 发明人: Masaki Yamauchi , Yoichiro Tsuji , Naotsugu Koashi , Hideo Kasahara , Takashi Nakagawa , Yoko Yamamoto
- 申请人： Masaki Yamauchi , Yoichiro Tsuji , Naotsugu Koashi , Hideo Kasahara , Takashi Nakagawa , Yoko Yamamoto
- 申请人地址： JP Osaka
- 专利权人： PANASONIC CORPORATION
- 当前专利权人： PANASONIC CORPORATION
- 当前专利权人地址： JP Osaka
- 代理机构： Wenderoth, Lind & Ponack, L.L.P.
- 优先权： JP2009-201386 20090901; JP2010-178321 20100809
- 国际申请： PCT/JP2010/005348 WO 20100831
- 国际公布： WO2011/027539 WO 20110310
- 主分类号： H01M8/10
- IPC分类号： H01M8/10 ; H01M8/00 ; H01M8/026 ; H01M8/0243 ; H01M8/0234 ; H01M8/0239 ; H01M8/1018
摘要：
In order to provide a membrane electrode assembly that can further improve power generation performances of a fuel cell, the present invention allows a rib portion (22) that separates mutually adjacent gas flow passages (21) from each other to have a porosity lower than the porosity of a lower area (23) of the rib portion. Thus, it is possible to suppress the deformation of the rib portion and excessive permeation of a reaction gas, and consequently to further improve the power generation performances.
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