发明名称 |
IMPROVED MEMBRANE ELECTRODE ASSEMBLIES AND HIGHLY DURABLE FUEL CELLS |
摘要 |
The invention relates to a membrane electrode assembly which comprises two gas diffusion layers, each contacted with a catalyst layer, which are separated by a polymer-electrolyte membrane. Said polymer electrolyte membrane has an inner area which is contacted with a catalyst layer, and an outer area which is not provided on the surface of a gas diffusion layer. The inventive assembly is characterized in that the thickness of all components of the outer area is 50 to 100%, based on the thickness of all components of the inner area. The thickness of the outer area decreases over a period of 5 hours by not more than 5% at a temperature of 80° C. and a pressure of 5 N/mm<SUP>2</SUP>. The decrease in thickness is determined after a first compression step which takes place over a period of 1 minute at a pressure of 5 N/mm<SUP>2</SUP>. |
申请公布号 |
EP1771911(B1) |
申请公布日期 |
2009.10.14 |
申请号 |
EP20050773445 |
申请日期 |
2005.07.21 |
申请人 |
BASF FUEL CELL GMBH |
发明人 |
UENSAL, OEMER;SCHMIDT, THOMAS;BELACK, JOERG |
分类号 |
H01M8/24;C08J5/22;H01M2/08;H01M8/02;H01M8/10 |
主分类号 |
H01M8/24 |
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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