Invention Grant
- Patent Title: 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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Application No.: US13144181Application Date: 2010-08-31
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Publication No.: US09793555B2Publication Date: 2017-10-17
- Inventor: Masaki Yamauchi , Yoichiro Tsuji , Naotsugu Koashi , Hideo Kasahara , Takashi Nakagawa , Yoko Yamamoto
- Applicant: Masaki Yamauchi , Yoichiro Tsuji , Naotsugu Koashi , Hideo Kasahara , Takashi Nakagawa , Yoko Yamamoto
- Applicant Address: JP Osaka
- Assignee: PANASONIC CORPORATION
- Current Assignee: PANASONIC CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2009-201386 20090901; JP2010-178321 20100809
- International Application: PCT/JP2010/005348 WO 20100831
- International Announcement: WO2011/027539 WO 20110310
- Main IPC: H01M8/10
- IPC: H01M8/10 ; H01M8/00 ; H01M8/026 ; H01M8/0243 ; H01M8/0234 ; H01M8/0239 ; H01M8/1018
Abstract:
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.
Public/Granted literature
- US20120021329A1 MEMBRANE ELECTRODE ASSEMBLY AND METHOD OF MANUFACTURING THE SAME, AS WELL AS FUEL CELL Public/Granted day:2012-01-26
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