发明名称 |
GASKETED MEMBRANE ELECTRODE ASSEMBLY FOR ELECTROCHEMICAL FUEL CELLS |
摘要 |
A gasketed membrane electrode assembly for electrochemical fuel cells employs gasketing material at the periphery of the ion exchange membrane, rather than the membrane itself, as a gasket. The gasketing material may be formed from an elastomeric material suitable for cold bonding or bonding by heat and pressure. A nonhydrophilic thermoplastic elastomer is the preferred gasketing material. The gasketed membrane electrode assembly provides a seal between the electrically conductive separator plates that is more effective and economical than assemblies employing the membrane itself as the gasketing material. In an alternative embodiment, a gasketed membrane assembly for use in the humidification portion of a fuel cell employs gasketing material at the periphery of a water permeable membrane. |
申请公布号 |
WO9222096(A3) |
申请公布日期 |
1994.09.15 |
申请号 |
WO1992CA00231 |
申请日期 |
1992.06.01 |
申请人 |
BALLARD POWER SYSTEMS INC. |
发明人 |
STECK, ALFRED, E.;WEI, JINZHU |
分类号 |
C25B9/00;H01M8/02;H01M8/10 |
主分类号 |
C25B9/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|