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    • 2. 发明申请
    • Membrane-electrode assembly for fuel cell
    • 燃料电池用膜电极组件
    • US20060127728A1
    • 2006-06-15
    • US11302346
    • 2005-12-14
    • Toshihiro OtsukiNagayuki KanaokaMasaru IguchiHiroshi Soma
    • Toshihiro OtsukiNagayuki KanaokaMasaru IguchiHiroshi Soma
    • H01M8/10
    • B01D71/82B01D71/52B01D71/72B01D71/80C08G61/02C08G61/025C08G65/40C08G75/23C08G2261/3424H01M8/1025H01M8/1027H01M8/1032H01M8/1039
    • The present invention provides a membrane-electrode assembly for fuel cell which comprises a solid polymer electrolyte membrane comprising a specific polyarylene having a sulfonic acid group and has excellent creep resistance, power generation performance and durability against power generation under high-temperature environment. The membrane-electrode assembly is characterized in that a pair of electrodes each comprising a gas diffusing layer and a catalyst layer are joined to both sides of a solid polymer electrolyte membrane so that the catalyst layer side comes into contact with the membrane, said membrane comprises a sulfonated polyarylene comprising constituent unit represented by the following formula (1): wherein Y is a group represented by —C(CF3)2—, (CF2)i—, wherein i is an integer of 1 to 10, —SO— or —SO2—; Z is a divalent electron-donating group or a direct bond; Ar is an aromatic group having a substituent represented by —SO3H; m is an integer of 0 to 10; n is an integer of 0 to 10; and k is an integer of 1 to 4.
    • 本发明提供一种燃料电池用膜电极接合体,其包含具有磺酸基的特定聚亚芳基的固体高分子电解质膜,在高温环境下具有优异的抗蠕变性,发电性能和耐发电性。 膜 - 电极组件的特征在于,在固体聚合物电解质膜的两面上接合包括气体扩散层和催化剂层的一对电极,使得催化剂层侧与膜接触,所述膜包含 包含由下式(1)表示的构成单元的磺化聚亚芳基:其中Y是由-C(CF 3)2 - 表示的基团,(CF 3) 其中i为1〜10的整数,-SO - 或-SO 2 - ; - Z是二价给电子基团或直接键; Ar是具有由-SO 3 H 3表示的取代基的芳香族基团; m为0〜10的整数。 n为0〜10的整数。 k为1〜4的整数。