发明授权
US07414004B2 Gas diffusion layer, electrode and membrane electrode assembly for fuel cell, and production methods thereof
有权
用于燃料电池的气体扩散层，电极和膜电极组件及其制造方法
- 专利标题： Gas diffusion layer, electrode and membrane electrode assembly for fuel cell, and production methods thereof
- 专利标题（中）： 用于燃料电池的气体扩散层，电极和膜电极组件及其制造方法
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申请号： US11002574申请日： 2004-12-03
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公开(公告)号： US07414004B2公开(公告)日： 2008-08-19
- 发明人: Akihiko Yoshida , Yoichiro Tsuji , Masaki Yamauchi , Yoshihiro Hori , Makoto Uchida , Hisaaki Gyoten , Teruhisa Kanbara
- 申请人： Akihiko Yoshida , Yoichiro Tsuji , Masaki Yamauchi , Yoshihiro Hori , Makoto Uchida , Hisaaki Gyoten , Teruhisa Kanbara
- 申请人地址： JP Osaka
- 专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址： JP Osaka
- 代理机构： McDermott Will & Emery LLP
- 优先权： JP2003-406018 20031204
- 主分类号： H01M4/88
- IPC分类号： H01M4/88
摘要：
The present invention provides a gas diffusion layer for a fuel cell which has proper rigidity, is easy to handle and contributes to the improvement of the productivity of fuel cells. A method for producing a gas diffusion layer for a fuel cell including a first step of: impregnating a conductive porous substrate made of a conductive carbon fiber cloth or conductive carbon fiber felt with a first dispersion containing a first fluorocarbon resin having thermoplasticity; and baking the first conductive porous substrate at a first baking temperature of not less than the melting point of the first fluorocarbon resin and less than the decomposition temperature of the first fluorocarbon resin to enhance the rigidity of the conductive porous substrate.
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