ELECTRODE ELECTROLYTE FOR USE IN SOLID POLYMER FUEL CELL
    4.
    发明申请
    ELECTRODE ELECTROLYTE FOR USE IN SOLID POLYMER FUEL CELL 有权
    用于固体聚合物燃料电池的电极电解质

    公开(公告)号:US20090130526A1

    公开(公告)日:2009-05-21

    申请号:US11995701

    申请日:2006-06-30

    IPC分类号: H01M8/10

    摘要: This invention provides an electrode electrolyte for a solid polymer-type fuel cell, in which a cost problem and a problem related to recovery of catalyst metals are solved, having excellent proton conductivity, dimensional stability and heat resistance.An electrode electrolyte for a solid polymer electrolyte-type fuel cell contains a polymer, which has a polyphenylene structure as a main chain and both a sulfonic acid group and a nitrogen-containing heterocyclic group as a side chain. A side chain having the nitrogen-containing heterocyclic group has a structure represented by the following general formula (D). (In formula, Z represents at least one kind of structures selected from a group consisting of a direct bond, —O— and —S—, Y represents at least one kind of structures selected from a group consisting of —CO—, —SO2—, —SO—, —CONH—, —COO—, —(CF2)1— (1 is an integer of 1 to 10) and —C(CF3)2— and R20 represents a nitrogen-containing heterocyclic group. q represents an integer of 1 to 5 and p represents an integer of 0 to 4.)The above nitrogen-containing heterocyclic group is at least one kind of group derived from a compound selected from the group consisting of nitrogen-containing heterocyclic compounds including pyrrole, thiazole, isothiazole, oxazole, isoxazole, pyridine, imidazole, imidazoline, pyrazole, 1,3,5-triazine, pyrimidine, pyridazine, pyrazine, indole, quinoline, isoquinoline, purine, benzimidazole, benzoxazole, benzothiazole, tetrazole, tetrazine, triazole, carbazole, acridine, quinoxaline and quinazoline and derivatives thereof.

    摘要翻译: 本发明提供一种固体聚合物型燃料电池用电极电解质,其中解决了成本问题和与催化剂金属的回收相关的问题,具有优异的质子传导性,尺寸稳定性和耐热性。 固体高分子电解质型燃料电池用电极电解质含有作为主链的聚亚苯基结构和磺酸基和含氮杂环基作为侧链的聚合物。 具有含氮杂环基的侧链具有由以下通式(D)表示的结构。 (式中,Z表示选自由直链,-O-和-S-组成的组中的至少一种结构,Y表示选自-CO - , - SO 2的至少一种结构 - , - SO - , - CONH - , - COO - , - (CF 2)1 - (1为1〜10的整数)和-C(CF 3)2 - ,R 20为含氮杂环基 1〜5的整数,p表示0〜4的整数。)上述含氮杂环基是选自包含吡咯,噻唑等含氮杂环化合物的化合物中的至少一种 异噻唑,恶唑,异恶唑,吡啶,咪唑,咪唑啉,吡唑,1,3,5-三嗪,嘧啶,哒嗪,吡嗪,吲哚,喹啉,异喹啉,嘌呤,苯并咪唑,苯并恶唑,苯并噻唑四唑,四嗪,三唑, ,吖啶,喹喔啉和喹唑啉及其衍生物。

    Process for producing electrolyte membrane-bonded electrode and varnish composition used therein

    公开(公告)号:US20060269655A1

    公开(公告)日:2006-11-30

    申请号:US11498173

    申请日:2006-08-03

    IPC分类号: B05D5/12

    摘要: The present invention is intended to provide a process for producing an electrolyte membrane-bonded electrode having excellent power generation property when constitutes an electrode assembly, and a varnish composition for an electrolyte, by the use of which an electrolyte membrane-electrode bonded structure capable of retaining excellent power generation property is obtained. A process for producing a first electrolyte membrane-bonded electrode comprises applying, onto an electrode, a water-containing dispersion containing a perfluorosulfonic acid polymer, an organic solvent A and water and having a perfluorosulfonic acid polymer content of 0.5 to 20% by weight and then applying, onto the resulting film, a solution of sulfonated polyarylene in an organic solvent B, to form an electrolyte membrane. A process for producing a second electrolyte membrane-bonded electrode comprises applying, onto an electrode, a solution or dispersion containing a proton-conductive polymer, an organic solvent B and water and having a water content of 25 to 50% by weight and then applying, onto the resulting film, a solution or dispersion containing a proton-conductive polymer, an organic solvent B and water and having a water content of less than 25% by weight, to form an electrolyte membrane. A process for producing a third electrolyte membrane-bonded electrode comprises applying, onto an electrode, a varnish composition 6 obtained by dissolving a sulfonated polymer in a solvent containing an organic solvent C, an organic solvent D and water to form an electrolyte membrane, said organic solvent C being a good solvent for the sulfonated polymer and having a higher boiling point than that of other solvent components, said organic solvent D having a boiling point of not lower than 50° C. and being not a good solvent for the sulfonated polymer when used alone but causing a solubility region of the sulfonated polymer to appear when mixed with the organic solvent C and/or the water. The varnish composition 6 of the invention is a varnish composition obtained by dissolving the sulfonated polymer in a solvent containing an organic solvent C, an organic solvent D and water.