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103 条记录 (耗时 0.029 秒)

    MEMBRANE ELECTRODE UNITS
    61.
    发明申请
    MEMBRANE ELECTRODE UNITS 审中-公开
    膜电极单元

    公开(公告)号：US20110318661A1

    公开(公告)日：2011-12-29

    申请号：US13254525

    申请日：2010-03-03

    申请人： Oemer Uensal ,  Sigmar Bräuninger ,  Werner Urban ,  Jennifer Dahl ,  Lucas Montag ,  Stefan Herzog

    发明人： Oemer Uensal ,  Sigmar Bräuninger ,  Werner Urban ,  Jennifer Dahl ,  Lucas Montag ,  Stefan Herzog

    IPC分类号： H01M8/10 ,  B05D5/12 ,  B05D3/02 ,  H01M8/04

    CPC分类号： H01M4/8636 ,  H01M4/8828 ,  H01M8/023 ,  H01M8/0239 ,  H01M8/0245 ,  H01M2008/1095 ,  H01M2300/0085

    摘要： A membrane electrode assembly, comprising at least one phosphoric acid-containing polymer electrolyte membrane and at least one gas diffusion electrode, said gas diffusion electrode comprising: i. at least one catalyst layer and ii. at least one gas diffusion medium having at least two gas diffusion layers, the first gas diffusion layer comprising an electrically conductive macroporous layer in which the pores have a mean pore diameter in the range from 10 μm to 30 μm, the second gas diffusion layer comprising an electrically conductive macroporous layer in which the pores have a mean pore diameter in the range from 10 μm to 30 μm, the gas diffusion medium comprising polytetrafluoroethylene, the first gas diffusion layer having a higher polytetrafluoroethylene concentration than the second gas diffusion layer.

    摘要翻译： 一种膜电极组件，包括至少一种含磷酸的聚合物电解质膜和至少一种气体扩散电极，所述气体扩散电极包括：i。 至少一个催化剂层，和ii。 至少一个具有至少两个气体扩散层的气体扩散介质，所述第一气体扩散层包括其中所述孔的平均孔径在10μm至30μm范围内的导电大孔层，所述第二气体扩散层包括 导电性大孔层，其中孔的平均孔径在10μm至30μm的范围内，气体扩散介质包含聚四氟乙烯，第一气体扩散层具有比第二气体扩散层高的聚四氟乙烯浓度。

    Membrane Electrode Assemblies and Highly Durable Fuel Cells
    65.
    发明申请
    Membrane Electrode Assemblies and Highly Durable Fuel Cells 审中-公开
    膜电极组件和高耐久性燃料电池

    公开(公告)号：US20070281204A1

    公开(公告)日：2007-12-06

    申请号：US11572323

    申请日：2005-07-21

    申请人： Oemer Uensal ,  Thomas Schmidt ,  Jorg Belack

    发明人： Oemer Uensal ,  Thomas Schmidt ,  Jorg Belack

    IPC分类号： H01M8/00 ,  H01M4/00

    CPC分类号： H01M8/1053 ,  H01M8/0271 ,  H01M8/1004 ,  H01M8/1023 ,  H01M8/1025 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1032 ,  H01M8/1039 ,  H01M8/1044 ,  H01M8/1048 ,  H01M8/1072 ,  H01M8/1083 ,  H01M2008/1095 ,  Y02P70/56

    摘要： The invention relates to a membrane electrode assembly which comprises two gas diffusion layers, each contacted with a catalyst layer, which are separated by a polymer-electrolyte membrane. Said 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. The inventive assembly is characterized in that the thickness of all components of the outer area is 50 to 100%, based on the thickness of all components of the inner area. The thickness of the outer area decreases over a period of 5 hours by not more than 5% at a temperature of 80° C. and a pressure of 5 N/mm2. The decrease in thickness is determined after a first compression step which takes place over a period of 1 minute at a pressure of 5 N/mm2.

    摘要翻译： 本发明涉及一种膜电极组件，其包括两个气体扩散层，每个气体扩散层与催化剂层接触，所述催化剂层由聚合物 - 电解质膜分离。 所述聚合物电解质膜具有与催化剂层接触的内部区域和不设置在气体扩散层的表面上的外部区域。 本发明的组件的特征在于，基于内部区域的所有部件的厚度，外部区域的所有部件的厚度为50至100％。 在80℃的温度和5N / mm 2的压力下，外部区域的厚度在5小时内减少不超过5％。 在第一压缩步骤之后，在5N / mm 2的压力下经过1分钟的时间段确定厚度的减小。

    Membrane-Electrode Unit and Fuel Elements with Increased Service Life
    66.
    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。