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    • 5. 发明授权
    • Gasketed membrane electrode assembly for electrochemical fuel cells
    • 用于电化学燃料电池的垫片膜电极组件
    • US5464700A
    • 1995-11-07
    • US225519
    • 1994-04-11
    • Alfred E. SteckJinzhu Wei
    • Alfred E. SteckJinzhu Wei
    • C25B9/00H01M8/02H01M8/10
    • C25B9/00H01M8/0273H01M8/1007H01M2300/0082
    • 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.
    • 用于电化学燃料电池的垫圈膜电极组件在离子交换膜的周边采用衬垫材料,而不是膜本身作为衬垫。 衬垫材料可以由适合于通过热和压力进行冷粘合或粘合的弹性体材料形成。 非亲水性热塑性弹性体是优选的衬垫材料。 垫圈膜电极组件提供了导电隔板之间的密封,其比使用膜本身作为衬垫材料的组件更有效和经济。 在替代实施例中,用于燃料电池的加湿部分的垫圈膜组件在透水膜的周边采用衬垫材料。