公开(公告)号：US20120129076A1

公开(公告)日：2012-05-24

申请号：US13388703

申请日：2010-08-03

申请人： Shunsuke Ichimura ,  Ryouhei Iwahara ,  Kouta Kitamura ,  Masahiro Yamashita

发明人： Shunsuke Ichimura ,  Ryouhei Iwahara ,  Kouta Kitamura ,  Masahiro Yamashita

IPC分类号： H01M8/10

CPC分类号： H01B1/122 ,  C08G75/23 ,  C08J5/2256 ,  C08J2365/02 ,  C08J2481/06 ,  C08L81/06 ,  H01M8/1025 ,  H01M8/1027 ,  H01M2008/1095

摘要： Disclosed is a proton exchange membrane for use in fuel cells, which not only has improved proton conductivity and resistance to swelling caused by hot water but also has greater durability when used in a fuel cell, as well as a sulfonic acid group-containing segmented block copolymer constituting the proton exchange membrane, a membrane electrode assembly using the proton exchange membrane, and a fuel cell using the membrane electrode assembly. A sulfonic acid group-containing segmented block copolymer, which is a di- or multi-block copolymer including, within a molecule, at least one kind of hydrophilic segment and at least one kind of hydrophobic segment, a 0.5 g/dL solution thereof dissolved in N-methyl-2-pyrrolidone as a solvent showing a logarithmic viscosity measured at 30° C. in the range of 0.5 to 5.0 dL/g, wherein the copolymer has at least one kind of hydrophobic segment represented by Chemical Formula 1, the segment has a structure bound to a group represented by Chemical Formula 2, and the hydrophilic segment has at least one kind of structure represented by Chemical Formula 3 or Chemical Formula 3-2.

摘要翻译： 公开了一种用于燃料电池的质子交换膜，其不仅具有改善的质子传导性和耐热水膨胀性，而且当用于燃料电池中时也具有较高的耐久性，以及含有磺酸基的分段嵌段 构成质子交换膜的共聚物，使用质子交换膜的膜电极组件和使用该膜电极组件的燃料电池。 含有磺酸基的分段嵌段共聚物，其为分子内包含至少一种亲水链段和至少一种疏水链段的二嵌段共聚物或多嵌段共聚物，溶解有0.5g / dL的溶液 在作为溶剂的N-甲基-2-吡咯烷酮中，在30℃下测定的对数粘度为0.5〜5.0dL / g，其中共聚物具有至少一种由化学式1表示的疏水链段， 链段具有与化学式2表示的基团结合的结构，亲水性链段具有由化学式3或化学式3-2表示的至少一种结构。

公开(公告)号：US20110065021A1

公开(公告)日：2011-03-17

申请号：US12991459

申请日：2009-05-08

申请人： Kouta Kitamura ,  Shunsuke Ichimura ,  Yoshimitsu Sakaguchi ,  Yoshiko Akitomo ,  Akira Nishimoto ,  Masahiro Yamashita ,  Kousuke Sasai ,  Takahiro Matsumura

发明人： Kouta Kitamura ,  Shunsuke Ichimura ,  Yoshimitsu Sakaguchi ,  Yoshiko Akitomo ,  Akira Nishimoto ,  Masahiro Yamashita ,  Kousuke Sasai ,  Takahiro Matsumura

IPC分类号： H01M8/10 ,  C08G81/00

CPC分类号： H01M8/1027 ,  C08G65/4006 ,  C08G65/4018 ,  C08G65/4031 ,  C08G65/4056 ,  C08G75/23 ,  C08L2205/05 ,  H01B1/122 ,  H01M8/1032 ,  H01M8/1072 ,  H01M2300/0082 ,  Y02P70/56

摘要： [Object] To provide a proton exchange membrane for a fuel cell having excellent proton conductivity, lower property of swelling with hot water, and excellent durability, as well as a block copolymer forming the proton exchange membrane, and a composition, a molded product, a fuel cell proton exchange membrane electrode assembly, and a fuel cell.[Solving Means] (1) A block copolymer having a hydrophilic segment and a hydrophobic segment and having a structure expressed by Chemical Formula 1 below (where X represents H or a univalent cation, Y represents sulfonyl group or carbonyl group, each of Z and z′ independently represents any of O and S atoms, W represents one or more group selected from the group consisting of direct bond between benzenes, sulfone group and carbonyl group, each of Ar1 and Ar2 independently represents divalent aromatic group, and each of n and m independently represents an integer from 2 to 100), and a molded product, a composition, and a proton exchange membrane, as well as a fuel cell including the proton exchange membrane.

摘要翻译： 为了提供具有优异的质子传导性，较低的热水膨胀性能和优异的耐久性的燃料电池的质子交换膜以及形成质子交换膜的嵌段共聚物，以及组合物，模塑产品， 燃料电池质子交换膜电极组件和燃料电池。 [解决方法]（1）具有亲水性链段和疏水性链段并具有下述化学式1表示的结构的嵌段共聚物（其中X表示H或一价阳离子，Y表示磺酰基或羰基，Z和 z'独立地表示O和S原子中的任一个，W表示选自苯，砜基和羰基之间的直接键的一个或多个基团，Ar 1和Ar 2各自独立地表示二价芳族基团，n和 m独立地表示2〜100的整数）和成型体，组合物和质子交换膜，以及包含质子交换膜的燃料电池。