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    Self-hydrating membrane electrode assemblies for fuel cells
    2.
    发明授权
    Self-hydrating membrane electrode assemblies for fuel cells 有权
    用于燃料电池的自我保湿膜电极组件

    公开(公告)号：US08227134B2

    公开(公告)日：2012-07-24

    申请号：US10684802

    申请日：2003-10-15

    申请人： Johna Leddy ,  Wayne L. Gellett ,  Drew C. Dunwoody

    发明人： Johna Leddy ,  Wayne L. Gellett ,  Drew C. Dunwoody

    IPC分类号： H01M8/10

    CPC分类号： H01M8/0284 ,  H01M4/8605 ,  H01M4/90 ,  H01M8/04291 ,  H01M8/1004 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1051 ,  H01M8/1067 ,  H01M8/1088 ,  H01M8/109 ,  H01M8/1093 ,  Y02P70/56

    摘要： Disclosed are self-hydrating membrane electrode assemblies (MEAs), including MEAs that have been magnetically modified, which comprises (i) a cathode comprising an electrically conducting material having a catalytic material on at least a portion of a first surface thereof, the catalytic material comprising an effective amount of at least one catalyst component and at least one ion conducting material; (ii) a separator adjacent to and in substantial contact with the first surface of the cathode and comprising an ion conducting material; and (iii) an anode adjacent to and in substantial contact with the surface of the separator opposite the cathode and comprising an electrically conducting material having a catalytic material on at least a portion of a surface thereof adjacent to the separator, the catalytic material comprising an effective amount of at least one catalyst component and at least one ion conducting material; wherein the separator permits water to pass from the first surface of the cathode to the surface of the anode in an amount sufficient to sustain hydration of the anode and further wherein the cathode produces sufficient water to sustain hydration of the anode. Also disclosed are methods of manufacture of the self-hydrating MEAs, as well as fuel cells that require only a self-hydrating MEA and a source of fuel.

    摘要翻译： 公开了包括已被磁性修饰的MEA的自我保湿膜电极组件（MEA），其包括（i）包括在其第一表面的至少一部分上具有催化材料的导电材料的阴极，催化材料 包含有效量的至少一种催化剂组分和至少一种离子传导材料; （ii）与阴极的第一表面相邻并基本接触并且包括离子导电材料的隔板; 和（iii）与隔板相对的与阴极相对并基本接触的阳极，并且包括在与隔板相邻的表面的至少一部分上具有催化材料的导电材料，所述催化材料包括 有效量的至少一种催化剂组分和至少一种离子导电材料; 其中所述分离器允许水以足以维持所述阳极水合的量从所述阴极的所述第一表面传递到所述阳极的表面，并且其中所述阴极产生足够的水以维持所述阳极的水合。 还公开了制造自保湿MEA的方法以及仅需要自身水合MEA和燃料源的燃料电池。