Membrane electrode assembly and fuel cells with improved lifetime
    2.
    发明授权
    Membrane electrode assembly and fuel cells with improved lifetime 有权
    膜电极组件和燃料电池具有改善的寿命

    公开(公告)号:US08815467B2

    公开(公告)日:2014-08-26

    申请号:US13307690

    申请日:2011-11-30

    IPC分类号: H01M8/10

    摘要: The present invention relates to a membrane electrode assembly comprising at least two electrochemically active electrodes separated by at least one polymer electrolyte membrane, the aforementioned polymer electrolyte membrane having fibrous reinforcing elements which at least partly penetrate the polymer electrolyte membrane, wherein at least some of the fibrous reinforcing elements have functional groups which have a covalent chemical bond between the fibers and the polymer of the polymer electrolyte membrane.The membrane electrode assembly is suitable for applications in fuel cells, especially in high-temperature polymer electrolyte fuel cells.

    摘要翻译: 本发明涉及一种膜电极组件,其包括由至少一个聚合物电解质膜隔开的至少两个电化学活性电极,上述聚合物电解质膜具有至少部分地穿透聚合物电解质膜的纤维增强元件,其中至少一些 纤维增强元件具有在纤维和聚合物电解质膜的聚合物之间具有共价化学键的官能团。 膜电极组件适用于燃料电池,特别是在高温聚合物电解质燃料电池中的应用。

    MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELLS WITH IMPROVED LIFETIME
    3.
    发明申请
    MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELLS WITH IMPROVED LIFETIME 有权
    膜电极组件和燃料电池具有改进的寿命

    公开(公告)号:US20120141908A1

    公开(公告)日:2012-06-07

    申请号:US13307690

    申请日:2011-11-30

    IPC分类号: H01M8/10 B05D5/12

    摘要: The present invention relates to a membrane electrode assembly comprising at least two electrochemically active electrodes separated by at least one polymer electrolyte membrane, the aforementioned polymer electrolyte membrane having fibrous reinforcing elements which at least partly penetrate the polymer electrolyte membrane, wherein at least some of the fibrous reinforcing elements have functional groups which have a covalent chemical bond between the fibers and the polymer of the polymer electrolyte membrane.The membrane electrode assembly is suitable for applications in fuel cells, especially in high-temperature polymer electrolyte fuel cells.

    摘要翻译: 本发明涉及一种膜电极组件,其包括由至少一个聚合物电解质膜隔开的至少两个电化学活性电极,上述聚合物电解质膜具有至少部分地穿透聚合物电解质膜的纤维增强元件,其中至少一些 纤维增强元件具有在纤维和聚合物电解质膜的聚合物之间具有共价化学键的官能团。 膜电极组件适用于燃料电池,特别是在高温聚合物电解质燃料电池中的应用。

    Membrane Electrode Units and Fuel Cells with an Increased Service Life
    5.
    发明申请
    Membrane Electrode Units and Fuel Cells with an Increased Service Life 审中-公开
    膜电极单元和燃料电池具有更长的使用寿命

    公开(公告)号:US20070248889A1

    公开(公告)日:2007-10-25

    申请号:US11572344

    申请日:2005-07-21

    IPC分类号: H01M6/18

    摘要: The invention relates to a membrane-electrode unit comprising two gas diffusion layers, each layer being in contact with a catalyst layer and said gas diffusion layers being separated by a polymer electrolyte membrane. A polymer frame is provided on at least one of the two surfaces of the polymer electrolyte membrane that are in contact with the catalyst layer. Said polymer frame comprises an inner region that lies on at least one surface of the polymer electrolyte membrane and an outer region that lies outside the gas diffusion layer. The thickness of all components of the outer region is between 50 and 100% of the thickness of all components of the inner region. The thickness of the outer region is reduced by a maximum 2% at a temperature of 80° C. and a pressure of 10 N/mm2 over a period of 5 hours, said reduction in thickness being determined after a first compression process, which is carried out at a pressure of 10 N/mm2 for 1 minute.

    摘要翻译: 本发明涉及一种膜 - 电极单元,其包括两个气体扩散层,每个层与催化剂层接触,并且所述气体扩散层被聚合物电解质膜隔开。 聚合物框架设置在与催化剂层接触的聚合物电解质膜的两个表面中的至少一个上。 所述聚合物框架包括位于聚合物电解质膜的至少一个表面上的内部区域和位于气体扩散层外部的外部区域。 外部区域的所有部件的厚度在内部区域的所有部件的厚度的50%至100%之间。 外部区域的厚度在5小时内在80℃的温度和10N / mm 2的压力下降低最大2%,所述厚度的减小被确定 在第一压缩过程之后,在10N / mm 2的压力下进行1分钟。

    MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELLS WITH IMPROVED LIFETIME
    6.
    发明申请
    MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELLS WITH IMPROVED LIFETIME 审中-公开
    膜电极组件和燃料电池具有改善的寿命

    公开(公告)号:US20120156588A1

    公开(公告)日:2012-06-21

    申请号:US13307745

    申请日:2011-11-30

    IPC分类号: H01M8/10 H01M8/00

    摘要: The present invention relates to a membrane electrode assembly comprising at least two electrochemically active electrodes which are separated by at least one polymer electrolyte membrane, the aforementioned polymer electrolyte membrane having at least one reinforcement, wherein the reinforcement comprises at least one film which has holes through which the polymer electrolyte membrane is in contact with both electrochemically active electrodes.The membrane electrode assembly is suitable for applications in fuel cells, especially in high-temperature polymer electrolyte fuel cells.

    摘要翻译: 本发明涉及一种膜电极组件,其包括由至少一个聚合物电解质膜隔开的至少两个电化学活性电极,上述聚合物电解质膜具有至少一个增强材料,其中该增强材料包括至少一个具有孔 聚合物电解质膜与两个电化学活性电极接触。 膜电极组件适用于燃料电池,特别是在高温聚合物电解质燃料电池中的应用。

    Membrane-Electrode Units and Fuel Cells Having a Long Service Life
    8.
    发明申请
    Membrane-Electrode Units and Fuel Cells Having a Long Service Life 审中-公开
    膜 - 电极单元和燃料电池使用寿命长

    公开(公告)号:US20080268321A1

    公开(公告)日:2008-10-30

    申请号:US12063339

    申请日:2006-08-05

    IPC分类号: H01M2/00 H01M4/00

    摘要: The present invention relates to a membrane electrode unit having two gas diffusion layers, each contacted with a catalyst layer, which are separated by a polymer electrolyte membrane, wherein the polymer electrolyte membrane has an inner area which is contacted with a catalyst layer, and an outer area which is not provided on the surface of a gas diffusion layer, characterized in that the thickness of the inner area of the membrane decreases over a period of 10 minutes by at least 5% at a pressure of 5 N/mm2 and the thickness of the membrane in the outer area is greater than the thickness of the inner area of the membrane.

    摘要翻译: 本发明涉及一种具有两个气体扩散层的膜电极单元,每个气体扩散层与催化剂层接触,由聚合物电解质膜隔开,其中聚合物电解质膜具有与催化剂层接触的内部区域, 未设置在气体扩散层的表面上的外部区域,其特征在于,膜的内部区域的厚度在5N / mm 2的压力下在10分钟内降低至少5% 2,外部区域中的膜的厚度大于膜的内部区域的厚度。