SOLID POLYMER ELECTROLYTE FUEL CELL
    1.
    发明公开
    SOLID POLYMER ELECTROLYTE FUEL CELL 有权
    BRENNSTOFFZELLE MIT FESTEM POLYMERELEKTROLYTEN

    公开(公告)号:EP1094535A4

    公开(公告)日:2001-10-10

    申请号:EP99926831

    申请日:1999-06-28

    IPC分类号: H01M8/02 H01M8/10

    摘要: Disclosed is a polymer electrolyte fuel cell having an improved separator plate. The fuel cell comprises a solid polymer electrolyte membrane; an anode and a cathode sandwiching the solid polymer electrolyte membrane therebetween; an anode-side conductive separator plate having a gas flow path for supplying a fuel gas to the anode; and a cathode-side conductive separator plate having a gas flow path for supplying an oxidant gas to the cathode, wherein each of the anode-side and cathode-side conductive separator plates is composed of a metal and a conductive coat which has resistance to oxidation and covers a surface of the metal. Alternatively, the above-mentioned separator plates are formed of a metal and a coat having resistance to oxidation and have roughened surfaces with recessions and protrusions, and portions of a top surface of the protruding portions, which lack the coat, are electrically connected to an electrode.

    摘要翻译: 公开了具有改进的隔板的聚合物电解质燃料电池。 燃料电池包括固体聚合物电解质膜; 将固体聚合物电解质膜夹在其间的阳极和阴极; 阳极侧导电隔板,其具有用于向阳极供给燃料气体的气体流路; 以及具有用于向阴极供给氧化剂气体的气体流路的阴极侧导电性隔板,其特征在于,所述阳极侧和所述阴极侧导电性隔板中的每一个都由具有耐氧化性的金属和导电性涂层构成 并覆盖金属的表面。 或者,上述隔板由金属和具有抗氧化性的涂层形成,并且具有凹凸和凹凸的粗糙表面,并且缺少涂层的突出部分的顶表面的部分电连接到 电极。