ASSEMBLY FOR FUEL CELL, FUEL CELL, AND METHOD FOR MANUFACTURING FUEL CELL
    71.
    发明申请
    ASSEMBLY FOR FUEL CELL, FUEL CELL, AND METHOD FOR MANUFACTURING FUEL CELL 审中-公开
    燃料电池组件,燃料电池和制造燃料电池的方法

    公开(公告)号:US20090239116A1

    公开(公告)日:2009-09-24

    申请号:US12374723

    申请日:2007-07-24

    IPC分类号: H01M8/10 H01M4/88 H01M4/86

    摘要: Disclosed is a fuel cell wherein deterioration of fuel cell performance due to dry up phenomenon and flooding phenomenon is suppressed. Specifically disclosed is an assembly for fuel cells or a fuel cell wherein a catalyst layer contains a first composite catalyst particle containing a catalyst supporting particle and a solid polymer electrolyte and a second composite catalyst particle having a larger volume average particle diameter than the first composite catalyst particle and arrangement of the first composite catalyst particle and the second composite catalyst particle is controlled in the thickness direction of the catalyst layer. Consequently, deterioration of fuel cell performance due to dry up phenomenon or flooding phenomenon can be suppressed, thereby realizing a fuel cell with high efficiency.

    摘要翻译: 公开了一种燃料电池,其中抑制了由于干燥现象和溢流现象引起的燃料电池性能的劣化。 具体公开了一种用于燃料电池或燃料电池的组件,其中催化剂层包含含有催化剂载体颗粒和固体聚合物电解质的第一复合催化剂颗粒和具有比第一复合催化剂更大的体积平均粒径的第二复合催化剂颗粒 在催化剂层的厚度方向上控制第一复合催化剂颗粒和第二复合催化剂颗粒的颗粒和排列。 因此,可以抑制由于干燥现象或溢流现象引起的燃料电池性能的恶化,从而实现高效率的燃料电池。

    Method of manufacturing membrane electrode assembly
    72.
    发明申请
    Method of manufacturing membrane electrode assembly 审中-公开
    膜电极组件的制造方法

    公开(公告)号:US20090029039A1

    公开(公告)日:2009-01-29

    申请号:US12219108

    申请日:2008-07-16

    IPC分类号: B05D5/06

    摘要: A method of manufacturing a membrane electrode assembly for a fuel cell, in which a catalyst layer is disposed between an electrolyte membrane and a gas diffusion layer, includes producing a catalyst powder that is used to form the catalyst layer; and forming the catalyst layer by unevenly depositing the catalyst powder on at least one of the electrolyte membrane and the gas diffusion layer.

    摘要翻译: 一种在电解质膜和气体扩散层之间设置有催化剂层的燃料电池用膜电极接合体的制造方法,其特征在于,制造用于形成所述催化剂层的催化剂粉末, 以及通过使所述催化剂粉末在所述电解质膜和所述气体扩散层中的至少一个上不均匀地沉积而形成所述催化剂层。

    METHOD OF PRODUCING ELECTRODES
    76.
    发明申请
    METHOD OF PRODUCING ELECTRODES 审中-公开
    生产电极的方法

    公开(公告)号:US20070298961A1

    公开(公告)日:2007-12-27

    申请号:US11425767

    申请日:2006-06-22

    IPC分类号: H01M4/88

    摘要: In a method of producing an electrode comprising a layer of an electrocatalytic material on a substrate, at least one liquid medium containing a precursor to the electrocatalytic material is atomized to produce droplets containing the precursor and the droplets are entrained in a stream of carrier gas moving in a first direction. The droplets entrained in the carrier gas stream are then heated to remove the liquid medium and convert the precursor to particles of the electrocatalytic material. The electrocatalytic material particles entrained in said carrier gas stream are then brought into contact with the substrate, whereby the electrocatalytic particles are separated from the carrier gas and collected on the substrate. By imparting relative movement between the substrate and the carrier gas stream in a second direction substantially perpendicular to the first direction a continuous layer of the electrocatalytic material can be progressively deposited on the substrate.

    摘要翻译: 在制造包含电催化材料层的电极的方法中,将含有电催化材料的前体的至少一种液体介质雾化以产生含有前体的液滴,并将液滴夹带在载气移动流中 在第一个方向。 夹带在载气流中的液滴然后被加热以除去液体介质并将前体转化为电催化材料的颗粒。 然后将携带在所述载气流中的电催化材料颗粒与基底接触,由此将电催化颗粒与载气分离并收集在基底上。 通过在基本上垂直于第一方向的第二方向上施加衬底和载气流之间的相对运动,电催化材料的连续层可以逐渐沉积在衬底上。