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    • 33. 发明申请
    • Polymer Electrolyte Fuel Cell
    • 聚合物电解质燃料电池
    • US20070298304A1
    • 2007-12-27
    • US11791679
    • 2005-11-01
    • Atsushi OhmaShinji Yamamoto
    • Atsushi OhmaShinji Yamamoto
    • H01M8/10
    • H01M4/92H01M4/8835H01M4/921H01M4/926H01M8/04223H01M8/1004H01M8/241H01M8/2457
    • For a combination of a solid polymer electrolyte membrane 107, catalytic layers 111 and 113 disposed on both sides of the solid polymer electrolyte membrane 107, gas diffusion layers 112 and 114 disposed outside the catalytic layers 111 and 113, and separators 103 and 104 disposed outside the gas diffusion layers 112 and 114, the catalytic layer 113 to be cathode-sided includes a carbon carrier 117 composed of carbon having a mean lattice plane spacing d002 of [002] planes calculated from an X-ray diffraction within a range of 0.343 nm to 0.358 nm, a crystallite size Lc within a range of 3 nm to 10 nm, and a specific surface area within a range of 200 m2/g to 300 m2/g, catalyst particlers 115 containing platinum supported on the carbon carrier 117, and an electrolyte 116. According to the invention, a polymer electrolyte fuel cell is allowed to prevent a corroding deterioration of carbon carriers in the cathode catalytic layer in start and stop of the fuel cell, allowing for an enhanced stable output over a long term.
    • 对于固体高分子电解质膜107,设置在固体高分子电解质膜107两侧的催化剂层111和113,设置在催化剂层111和113外部的气体扩散层112和114以及设置在外部的隔板103和104的组合 气体扩散层112和114,作为阴极侧的催化剂层113包括由X表示的由002表示的平均晶格面间隔d 002的碳载体117, 在0.343nm至0.358nm的范围内的光线衍射,在3nm至10nm的范围内的微晶尺寸Lc,在200m 2 / g至300μm的范围内的比表面积 含有负载在碳载体117上的铂的催化剂分散器115和电解质116.根据本发明,允许固体高分子型燃料电池防止碳载体上的碳载体的腐蚀劣化 阴极催化层起始和停止f 能够长期保持稳定的输出。