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    • 2. 发明授权
    • High durability fuel cell components with cerium salt additives
    • 高耐久性燃料电池组件与铈盐添加剂
    • US08628871B2
    • 2014-01-14
    • US11262268
    • 2005-10-28
    • Matthew H. FreyDaniel M. PierpontSteven J. Hamrock
    • Matthew H. FreyDaniel M. PierpontSteven J. Hamrock
    • H01M8/10
    • H01M8/1051C08J5/2237C08J2327/18H01M8/1004H01M8/1023H01M8/1027H01M8/1032H01M8/1039H01M8/1058H01M8/1072H01M8/1081H01M2300/0091Y02E60/521Y02P70/56
    • A fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane which comprises a polymer that comprises bound anionic functional groups, wherein the polymer electrolyte membrane additionally comprises cerium cations. In another aspect, a fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane which comprises a polymer that comprises bound anionic functional groups, wherein at least a portion of the anionic functional groups are in acid form and at least a portion of the anionic functional groups are neutralized by cerium cations. In another aspect, a polymer electrolyte membrane is provided which comprises a polymer that comprises bound anionic functional groups, wherein the polymer electrolyte membrane additionally comprises cerium cations, and wherein the amount of cerium cations present is between 0.001 and 0.5 charge equivalents based on the molar amount of acid functional groups present in the polymer electrolyte, more typically between 0.005 and 0.2, more typically between 0.01 and 0.1, and more typically between 0.02 and 0.05.
    • 提供一种燃料电池膜电极组件,其包括聚合物电解质膜,其包含含有结合的阴离子官能团的聚合物,其中所述聚合物电解质膜另外包含铈阳离子。 在另一方面,提供一种燃料电池膜电极组件,其包括聚合物电解质膜,其包含含有结合的阴离子官能团的聚合物,其中至少一部分阴离子官能团为酸形式,并且至少部分阴离子 官能团被铈阳离子中和。 在另一方面,提供了一种聚合物电解质膜,其包含含有结合的阴离子官能团的聚合物,其中所述聚合物电解质膜另外包含铈阳离子,并且其中存在的铈阳离子的量为0.001至0.5当量,基于摩尔 存在于聚合物电解质中的酸官能团的量更多,通常在0.005至0.2之间,更典型地在0.01至0.1之间,更典型地在0.02至0.05之间。