发明名称 |
MEMBRANE-ELECTRODE-ASSEMBLY FOR AN ELECTROCHEMICAL FUEL CELL |
摘要 |
A membrane electrode assembly for an electrochemical fuel cell includes a pair of electrodes and an ion exchange membrane interposed therebetween. At least one of the electrodes comprises a porous electrode substrate. The substrate comprises a preformed macroporous web having a through-plane resistivity of greater than 1 OMEGA *cm. The web contains an electrically conductive filler. A method for preparing the membrane electrode assembly includes the steps of (a) forming a porous electrode substrate for an electrochemical fuel cell by filling a preformed macroporous web, the web having a through-plane resistivity of greater than 1 OMEGA *cm, with an electrically conductive filler and (b) consolidating the electrode pair and ion exchange membrane to form a unitary assembly. |
申请公布号 |
EP0950266(B1) |
申请公布日期 |
2002.04.03 |
申请号 |
EP19970922778 |
申请日期 |
1997.05.26 |
申请人 |
BALLARD POWER SYSTEMS INC. |
发明人 |
CAMPBELL, STEPHEN, A.;STUMPER, JUERGEN;WILKINSON, DAVID, P.;DAVIS, MICHAEL, T. |
分类号 |
H01M4/86;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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