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    • 8. 发明申请
    • POLYMER ELECTROLYTE MEMBRANE FOR POLYMER ELECTROLYTE FUEL CELLS, AND MEMBRANE/ELECTRODE ASSEMBLY
    • 用于聚合物电解质燃料电池的聚合物电解质膜和膜/电极组件
    • US20100009236A1
    • 2010-01-14
    • US12483315
    • 2009-06-12
    • Seigo KoteraTetsuji ShimohiraSatoru HommuraSusumu Saito
    • Seigo KoteraTetsuji ShimohiraSatoru HommuraSusumu Saito
    • H01M8/10
    • H01B1/122H01M8/1023H01M8/1039H01M8/106H01M8/1067
    • To provide a polymer electrolyte membrane for polymer electrolyte fuel cells having high mechanical strength and excellent dimensional stability when it contains water even when it is made thin and the concentration of ionic groups is increased so as to reduce the electrical resistance, and a membrane/electrode assembly providing high output and having excellent durability.A polymer electrolyte membrane 15, which comprises a fluorinated proton conductive polymer (i) having a proton conductivity of at least 0.06 S/cm in an atmosphere at a temperature of 80° C. under a relative humidity of 50%, and (ii) having repeating units based on a vinyl ether type monomer with a mass (equivalent weight) of at most 400 per 1 mol of ionic groups and repeating units based on a perfluoromonomer (except for the above vinyl ether type monomer) and a fluorinated reinforcing material; and a membrane/electrode assembly 10 comprising the polymer electrolyte membrane 15 interposed between an anode 13 and a cathode 14.
    • 为了提供具有高机械强度和优异的尺寸稳定性的高分子电解质膜的高分子电解质膜,即使在含有水的情况下也含有水分,并且提高离子基团的浓度以降低电阻,并且提供膜/电极 组装提供高输出并具有优异的耐久性。 在相对湿度为50%的温度为80℃的气氛中,包含质子传导率为0.06S / cm以上的质子传导性聚合物(i)的高分子电解质膜15,(ii) 具有基于每1mol离子基质量(当量)至多400个/基于全氟单体(除上述乙烯基醚型单体除外)和氟化增强材料的重复单元)的乙烯基醚型单体的重复单元; 以及包含介于阳极13和阴极14之间的聚合物电解质膜15的膜/电极组件10。