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    Membrane Electrode Units and Fuel Cells with an Increased Service Life
    8.
    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

    申请人： Thomas Schmidt ,  Christoph Padberg ,  Glen Hoppes ,  Detlef Ott ,  Francis Rat ,  Marc Jantos

    发明人： Thomas Schmidt ,  Christoph Padberg ,  Glen Hoppes ,  Detlef Ott ,  Francis Rat ,  Marc Jantos

    IPC分类号： H01M6/18

    CPC分类号： H01M2/08 ,  C08J5/2256 ,  C08J2379/06 ,  H01M8/0273 ,  H01M8/0289 ,  H01M8/0297 ,  H01M8/1023 ,  H01M8/103 ,  H01M8/1044 ,  H01M8/1072 ,  Y02P70/56 ,  Y10T156/10

    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 Unit and Fuel Elements with Increased Service Life
    9.
    发明申请
    Membrane-Electrode Unit and Fuel Elements with Increased Service Life 失效
    膜 - 电极单元和燃料元件具有更长的使用寿命

    公开(公告)号：US20070248863A1

    公开(公告)日：2007-10-25

    申请号：US11573105

    申请日：2005-08-05

    申请人： Jurgen Pawlik ,  Oemer Uensal ,  Thomas Schmidt ,  Christoph Padberg ,  Glen Hoppes

    发明人： Jurgen Pawlik ,  Oemer Uensal ,  Thomas Schmidt ,  Christoph Padberg ,  Glen Hoppes

    IPC分类号： H01M8/10

    CPC分类号： H01M8/0271 ,  H01M4/8605 ,  H01M8/1007 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1048

    摘要： The invention relates to a membrane-electrode unit comprising a) two electrochemically active electrodes divided by a polymer electrolytic membrane, wherein the surfaces of said polymer electrolytic membrane are in contact with the electrodes in such a way that the first electrode partially or entirely covers the front side of the polymer electrolytic membrane and the second electrode partially or entirely covers the rear side thereof, b) a sealing material is applied to the front and rear sides of the polymer electrolytic membrane, wherein the polymer electrolytic membrane is provided with one or several recesses and the sealing material applied to the front side of the polymer electrolytic membrane is in contact with the sealing material applied to the rear side thereof. A method for producing said membrane-electrode unit and fuel cells provided therewith are also disclosed.

    摘要翻译： 本发明涉及一种膜 - 电极单元，其包括a）两个由聚合物电解质膜分隔的电化学活性电极，其中所述聚合物电解质膜的表面与电极接触，使得第一电极部分或完全覆盖 聚合物电解质膜的前侧和第二电极部分或全部覆盖其后侧，b）将密封材料施加到聚合物电解质膜的前侧和后侧，其中聚合物电解质膜设置有一个或多个 凹部和施加到聚合物电解质膜的前侧的密封材料与施加到其后侧的密封材料接触。 还公开了制造所述膜 - 电极单元和其所设置的燃料电池的方法。