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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.

    Membrane-electrode structure for solid polymer fuel cell
    6.
    发明申请
    Membrane-electrode structure for solid polymer fuel cell 审中-公开
    固体聚合物燃料电池的膜 - 电极结构

    公开(公告)号：US20050064260A1

    公开(公告)日：2005-03-24

    申请号：US10941899

    申请日：2004-09-16

    申请人： Toshihiro Otsuki ,  Kohei Goto ,  Ryoichiro Takahashi ,  Yoichi Asano

    发明人： Toshihiro Otsuki ,  Kohei Goto ,  Ryoichiro Takahashi ,  Yoichi Asano

    IPC分类号： H01M4/86 ,  H01M8/10 ,  H01M4/90 ,  H01M4/96 ,  H01M8/04 ,  H01M8/12

    CPC分类号： H01M8/1004 ,  H01M4/8605 ,  H01M2300/0082

    摘要： Disclosed is a membrane-electrode structure for a solid polymer fuel cell comprising a pair of electrode catalyst layers and a polyeletrolyte membrane sandwiched between the electrode catalyst layers, wherein the electrode catalyst layers contain polyarylene having a sulfonic acid group, said polyarylene comprising a recurring unit represented by the following formula (A) and a recurring unit represented by the following formula (B); wherein Y is a direct bonding or a group selected from a divalent electron withdrawing group and a divalent electron donating group, Ar is a mononuclear or polynuclear aromatic group, m is an integer of 0 to 10, k is an integer of 0 to 5, l is an integer of 0 to 4, and k+1≧1; wherein R1 to R8 are each a hydrogen atom, a fluorine atom, an alkyl group, a fluorine-substituted alkyl group, an aryl group or an allyl group, W is a divalent electron withdrawing group or a direct bonding, T is a direct bonding, a divalent electron withdrawing group, a divalent electron donating group or the like, and n is an integer of 2 or more. The membrane-electrode structure for a solid polymer fuel cell of the present invention exhibits excellent electricity generation performance.

    摘要翻译： 公开了一种固体高分子型燃料电池用膜电极结构体，其包含一对电极催化剂层和夹在所述电极催化剂层之间的聚电解质膜，其中所述电极催化剂层含有具有磺酸基的聚亚芳基，所述聚亚芳基包含重复单元 由下式（A）表示的重复单元和由下式（B）表示的重复单元; 其中Y为直接键或选自二价吸电子基团和二价给电子基团的基团，Ar为单核或多核芳族基团，m为0〜10的整数，k为0〜5的整数， l是0〜4的整数，k + 1> = 1; 其中R 1至R 8各自为氢原子，氟原子，烷基，氟取代的烷基，芳基或烯丙基，W为二价吸电子基团或直接键合 T是直接键合，二价吸电子基团，二价给电子基团等，n为2以上的整数。 本发明的固体高分子型燃料电池用膜 - 电极结构的发电性能优异。

    Process of producing electrode paste and electrode paset compositon
    7.
    发明申请
    Process of producing electrode paste and electrode paset compositon 审中-公开
    生产电极膏和电极桩组合物的工艺

    公开(公告)号：US20050026029A1

    公开(公告)日：2005-02-03

    申请号：US10901052

    申请日：2004-07-29

    申请人： Junji Kawai ,  Makoto Higami ,  Kohei Goto ,  Ryoichiro Takahashi ,  Yoichi Asano

    发明人： Junji Kawai ,  Makoto Higami ,  Kohei Goto ,  Ryoichiro Takahashi ,  Yoichi Asano

    IPC分类号： H01M4/86 ,  H01M4/88 ,  H01M4/92 ,  H01M8/10 ,  H01M4/96

    CPC分类号： H01M4/8828 ,  H01M4/8605 ,  H01M4/8652 ,  H01M4/8663 ,  H01M4/8673 ,  H01M4/926

    摘要： A process of producing an electrode paste having excellent storage stability and capable of forming a catalyst layer that has a sufficient pore volume for high generating performance, and an electrode paste composition having such properties are disclosed. The process comprises mixing and agitating carbon black supporting a catalyst metal, a polymer electrolyte, an organic solvent and at least either carbon fiber or water thereby to finely disperse the carbon black to a predetermined mean particle diameter of particles dispersed in the mixed solution, and admixing a dispersant to the mixed solution and agitating the resultant mixture to obtain an electrode paste in which particles having a predetermined mean particle diameter are uniformly dispersed.

    摘要翻译： 公开了一种具有优异的储存稳定性并且能够形成具有足够的孔体积以获得高发生性能的催化剂层的电极糊的方法和具有这种性能的电极糊组合物。 该方法包括混合和搅拌负载催化剂金属的炭黑，聚合物电解质，有机溶剂和至少一种碳纤维或水，从而将炭黑细分散到分散在混合溶液中的预定颗粒直径的颗粒，以及 将分散剂混合到混合溶液中并搅拌所得混合物以获得其中具有预定平均粒径的颗粒均匀分散的电极浆料。