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发明公开
CN101542795A 固体高分子型燃料电池用固体高分子电解质膜及膜电极接合体 无效 - 撤回

固体高分子型燃料电池用固体高分子电解质膜及膜电极接合体
摘要：
本发明提供一种虽然含有含氟聚合物、但即使反复发生湿润状态下的溶胀和干燥状态下的收缩也不易受损的固体高分子型燃料电池用固体高分子电解质膜，以及使用该固体高分子电解质膜的膜电极接合体。本发明提供固体高分子电解质膜15及膜电极接合体10；所述固体高分子电解质膜15的由拉伸应力－应变曲线通过JIS K 7161－1994中记载的评价方法求得的拉伸屈服应力为5.5MPa以下，所述拉伸应力－应变曲线是在温度80℃、形变速度1/分的条件下按照JIS K 7161－1994中记载的拉伸试验法得到的曲线；所述膜电极接合体10是将该固体高分子电解质膜15配置于具有催化剂层11的阳极13和阴极14之间而成的膜电极接合体。
摘要（英）：

Disclosed is a solid polymer electrolyte membrane for a polymer electrolyte fuel cell, which is hardly broken when undergoes repeated swelling in a wet state and shrinkage in a dried state in spite of containing a fluorinated polymer. Also disclosed is a membrane electrode assembly having the solid polymer electrolyte membrane. Specifically disclosed are: a solid polymer electrolyte membrane (15) having a tensile stress at yield of 5.5 MPa or less as determined by an evaluation method in accordance with JIS K 7161-1994 based on a tensile stress-strain curve produced according to a tensile test method in accordance with JIS K 7161-1994 at a temperature of 80 DEG C and a deformation rate of 1/min.; and a membrane electrode assembly (10) comprising an anode (13) having a catalyst layer (11), a cathode (14) having a catalyst layer and the solid polymer electrolyte membrane (15) provided between the anode (13) and the cathode (14).

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