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    Gas diffusion electrode with reduced diffusing capacity for water and polymer electrolyte membrane fuel cells
    1.
    发明授权
    Gas diffusion electrode with reduced diffusing capacity for water and polymer electrolyte membrane fuel cells 失效
    气体扩散电极具有降低的水和聚合物电解质膜燃料电池的扩散能力

    公开(公告)号：US06451470B1

    公开(公告)日：2002-09-17

    申请号：US09380536

    申请日：2000-01-10

    申请人： Arthur Koschany ,  Christian Lucas ,  Thomas Schwesinger

    发明人： Arthur Koschany ,  Christian Lucas ,  Thomas Schwesinger

    IPC分类号： H01M496

    CPC分类号： H01M8/04291 ,  H01M4/8605 ,  H01M8/1004 ,  H01M2300/0082

    摘要： Gas diffusion electrodes (1) for polymer electrolyte membrane fuel cells are modified such that the diffusion of water therein is inhibited in comparison with un-modified electrodes. Polymer electrolyte membrane fuel cells with the modified gas diffusion electrodes can be operated, with on the average unchanged operating conditions, without addition of water, since the gas diffusion electrodes do not allow more water to escape than that formed during the reaction of burnable gas and oxidizing agent, and guarantee sufficient membrane moisture.

    摘要翻译： 用于聚合物电解质膜燃料电池的气体扩散电极（1）被修饰，使得与未修饰的电极相比，其中的水的扩散被抑制。 具有改性气体扩散电极的聚合物电解质膜燃料电池可以在平均不变的操作条件下操作，而不添加水，因为气体扩散电极不允许比在可燃气体反应期间形成的水多， 氧化剂，并保证充分的膜水分。

    Membrane-electrode unit with an integrated wear ring, and method of making the same
    4.
    发明授权
    Membrane-electrode unit with an integrated wear ring, and method of making the same 失效
    具有集成磨损环的膜电极单元及其制造方法

    公开(公告)号：US06475656B1

    公开(公告)日：2002-11-05

    申请号：US09355283

    申请日：1999-07-28

    申请人： Arthur Koschany ,  Thomas Schwesinger

    发明人： Arthur Koschany ,  Thomas Schwesinger

    IPC分类号： H01M810

    CPC分类号： H01M8/241 ,  H01M8/0271 ,  H01M8/2404 ,  H01M2300/0082 ,  Y02P70/56

    摘要： A membrane-electrode unit (1) with integrated sealing edge for a polymer electrolyte membrane fuel cell having a polymer electrolyte membrane (2), an anode (3) arranged on one surface of the membrane and a cathode (4) arranged on the other surface of the membrane, is made from a layer material of anode material, cathode material and polymer electrolyte membrane material disposed therebetween, from which pieces of suitable size are severed, with the membrane, in the severed pieces, being covered completely by the electrodes on both of its sides. On the periphery of said piece, a sealing edge (5) is formed such that the sealing edge (5) penetrates an edge portion (6′, 7′) of at least one of the electrodes (3, 4) and adheres to the membrane portion adjacent the edge potion and/or the sealing edge adheres to the end faces of at least one of the electrodes and the end faces of the membrane.

    摘要翻译： 一种用于聚合物电解质膜燃料电池的集成密封边缘的膜 - 电极单元（1），其具有聚合物电解质膜（2），布置在膜的一个表面上的阳极（3）和设置在另一个膜上的阴极（4） 膜的表面由阳极材料，阴极材料和设置在其间的聚合物电解质膜材料的层材料制成，其中合适尺寸的片断被切断，膜在切割的片上被电极完全覆盖 两边。 在所述件的周边上，形成密封边缘（5），使得密封边缘（5）穿过至少一个电极（3,4）的边缘部分（6'，7'）并且粘附到 邻近边缘部分和/或密封边缘的膜部分粘附到膜的至少一个电极和端面的端面。