发明名称 |
MEMBRANE CATALYST LAYER ASSEMBLY, MEMBRANE ELECTRODE ASSEMBLY, AND POLYMER ELECTROLYTE FUEL CELL |
摘要 |
An object of the present invention is to provide a catalyst-coated membrane suitable for achieving a polymer electrolyte fuel cell that sufficiently prevents a decrease in the initial characteristics and also exhibits sufficient cell performance for a long period of time and has excellent durability. In at least the cathode catalyst layer, the ratio (W P /W Cat-C ) of the weight of the polymer electrolyte (W P ) to the weight of the catalyst-carrying carbon (W Cat-C ) is decreased from an innermost layer positioned closest to the polymer electrolyte membrane toward an outermost layer positioned farthest from the polymer electrolyte membrane. The ratio (W P /W Cat-C ) in the innermost layer is 0.8 to 3.0, and the ratio (W P /W Cat-C ) in the outermost layer is 0.2 to 0.6. |
申请公布号 |
EP1705737(A1) |
申请公布日期 |
2006.09.27 |
申请号 |
EP20050709329 |
申请日期 |
2005.01.25 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
YOSHIMURA, MIKIKO;HORI, YOSHIHIRO;TSUJI, YOICHIRO;YOSHIDA, AKIHIKO;YONAMINE, TAKESHI;UCHIDA, MAKOTO |
分类号 |
H01M4/86;H01M4/88;H01M4/90;H01M4/92;H01M4/96;H01M8/02;H01M8/10 |
主分类号 |
H01M4/86 |
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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