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    Process for producing electrolyte membrane-bonded electrode and varnish composition used therein
    5.
    发明申请
    Process for producing electrolyte membrane-bonded electrode and varnish composition used therein 审中-公开

    公开(公告)号：US20060269655A1

    公开(公告)日：2006-11-30

    申请号：US11498173

    申请日：2006-08-03

    申请人： Makoto Higami ,  Kohei Goto ,  Nagayuki Kanaoka ,  Ryoichiro Takahashi ,  Yoichi Asano ,  Osamu Kakutani ,  Gen Okiyama

    发明人： Makoto Higami ,  Kohei Goto ,  Nagayuki Kanaoka ,  Ryoichiro Takahashi ,  Yoichi Asano ,  Osamu Kakutani ,  Gen Okiyama

    IPC分类号： B05D5/12

    CPC分类号： H01M8/1023 ,  H01M4/8605 ,  H01M4/92 ,  H01M4/926 ,  H01M8/1004 ,  H01M8/1039 ,  H01M8/1053 ,  Y02P70/56

    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.

    Method of manufacturing membrane electrode assembly
    9.
    发明授权
    Method of manufacturing membrane electrode assembly 有权
    膜电极组件的制造方法

    公开(公告)号：US07090738B2

    公开(公告)日：2006-08-15

    申请号：US10445324

    申请日：2003-05-27

    申请人： Nagayuki Kanaoka ,  Ryoichiro Takahashi ,  Yoichi Asano

    发明人： Nagayuki Kanaoka ,  Ryoichiro Takahashi ,  Yoichi Asano

    IPC分类号： B29C65/54 ,  B32B33/00 ,  B32B37/15 ,  B32B38/16 ,  H01M6/00

    CPC分类号： H01M4/881 ,  H01M4/8605 ,  H01M4/8832 ,  H01M4/8835 ,  H01M4/886 ,  H01M4/8882 ,  H01M4/92 ,  H01M8/1004 ,  Y02P70/56 ,  Y10T29/49115 ,  Y10T29/49345 ,  Y10T29/49888 ,  Y10T29/49904 ,  Y10T29/49982

    摘要： A membrane electrode assembly having excellent electric power generating capability is produced from a base coated with first polymer electrolytic solution to form an undried first polymer electrolytic membrane. Undried first polymer electrolytic membrane is coated with first electrode dispersion of second polymer electrolytic solution and catalyst carried on a catalyst carrier and dissolved therein. First electrode dispersion is dried to form a first electrode positive-electrode membrane electrode assembly. Another base, coated with third polymer electrolytic solution, forms undried second polymer electrolytic membrane. Undried second polymer electrolytic membrane is coated with a second electrode dispersion of fourth polymer electrolytic solution and a catalyst carried on a catalyst carrier and dissolved therein. Second electrode dispersion is dried forming a second electrode negative-electrode membrane electrode assembly. The membrane electrode assemblies are integrally combined by joining said first and second polymer electrolytic membranes with fifth polymer electrolytic solution interposed therebetween.

    摘要翻译： 由涂覆有第一聚合物电解液的基底制成具有优异的发电能力的膜电极组件，以形成未干燥的第一聚合物电解质膜。 未干燥的第一聚合物电解质膜涂覆有第二聚合物电解溶液的第一电极分散体和载于催化剂载体上并溶解在其中的催化剂。 将第一电极分散体干燥以形成第一电极正电极膜电极组件。 涂有第三聚合物电解液的另一基底形成未干燥的第二聚合物电解质膜。 未干燥的第二聚合物电解质膜涂覆有第四聚合物电解质溶液的第二电极分散体和载于催化剂载体上并溶解在其中的催化剂。 干燥第二电极分散体，形成第二电极负极膜电极组件。 通过将所述第一和第二聚合物电解质膜与第五聚合物电解质溶液接合而将膜电极组件一体地组合。