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    Method for the production of multilayers
    1.
    发明授权
    Method for the production of multilayers 有权
    生产多层膜的方法

    公开(公告)号：US06685984B2

    公开(公告)日：2004-02-03

    申请号：US10447150

    申请日：2003-05-29

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

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

    IPC分类号： B05D512

    CPC分类号： H01M8/1004 ,  H01M8/1025 ,  H01M8/1027 ,  H01M8/1032 ,  H01M8/1039 ,  H01M8/1081 ,  H01M2300/0082 ,  Y02P70/56 ,  Y10T29/49115

    摘要： The method for the production of multilayers comprises: applying a coating solution (I) which comprises a dissolved or dispersed proton-conductive polymer and a solvent (Is) containing water in amounts from 25 to 60 wt % and an organic solvent in amounts from 75 down to 40 wt %, on an electrode, applying a coating solution (II) which comprises a dissolved or dispersed proton-conductive polymer and a solvent (IIs) containing water in amounts from 0 to less than 25 wt % and an organic solvent in amounts above 75 wt %, on the wet first coating without any drying of the first coating; and drying the coatings to form an electrolyte membrane. The methods can provide multilayers capable of satisfactory power generation properties as an electrode structure by forming an electrolyte membrane on an electrode without causing any penetration of electrolyte into the electrode.

    摘要翻译： 制造多层膜的方法包括：将含有溶解或分散的质子传导性聚合物和含量为25〜60重量％的水的溶剂（Is）和有机溶剂的涂布溶液（I） 在电极上施加包含溶解或分散的质子传导性聚合物的涂料溶液（II）和含有0至小于25重量％的水的溶剂（IIs）和有机溶剂， 含量高于75重量％，在湿的第一涂层上，没有任何干燥第一涂层; 并干燥涂层以形成电解质膜。 所述方法可以通过在电极上形成电解质膜而不会使电解质进入电极而使能够具有令人满意的发电性能的多层作为电极结构。

    Process for producing electrolyte membrane-bonded electrode and varnish composition used therein
    2.
    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.

    Process of producing electrode paste and electrode paset compositon
    3.
    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。

    Polymer electrolyte fuel cell
    4.
    发明申请
    Polymer electrolyte fuel cell 有权
    聚合物电解质燃料电池

    公开(公告)号：US20050202308A1

    公开(公告)日：2005-09-15

    申请号：US11074931

    申请日：2005-03-09

    申请人： Ryoichiro Takahashi ,  Chikara Iwasawa ,  Masahiro Ise ,  Yoichi Asano ,  Hideki Watanabe ,  Atsuhito Yoshizawa ,  Takashi Suzuki ,  Osamu Kakutani

    发明人： Ryoichiro Takahashi ,  Chikara Iwasawa ,  Masahiro Ise ,  Yoichi Asano ,  Hideki Watanabe ,  Atsuhito Yoshizawa ,  Takashi Suzuki ,  Osamu Kakutani

    IPC分类号： H01M4/86 ,  H01M4/88 ,  H01M4/94 ,  H01M4/96 ,  H01M8/02 ,  H01M8/10

    CPC分类号： H01M8/1004 ,  H01M4/8605 ,  H01M4/8642 ,  H01M4/8652 ,  H01M4/8657

    摘要： In a polymer electrolyte fuel cell in which a cathode diffusion layer, a cathode electrode catalyst layer, a polymer electrolyte membrane, an anode electrode catalyst layer, and an anode diffusion layer are laminated in this order, electron conductivity of the cathode electrode catalyst layer at a portion on the side of the cathode diffusion layer is higher than at a portion on the side of the polymer electrolyte membrane and electron conductivity of the cathode electrode catalyst layer at the portion on the side of the polymer electrolyte membrane is lower than at the portion on the side of the cathode diffusion layer, and furthermore, electron conductivity of the anode electrode catalyst layer at a portion on the side of the anode diffusion layer is higher than at a portion on the side of the polymer electrolyte membrane and electron conductivity of the anode electrode catalyst layer at the portion on the side of the polymer electrolyte membrane is lower than at the portion on the side of the anode diffusion layer.

    摘要翻译： 在其中依次层叠有阴极扩散层，阴极电极催化剂层，高分子电解质膜，阳极电极催化剂层，阳极扩散层的固体高分子型燃料电池中，阴极电极催化剂层的电子传导性为 阴极扩散层侧的部分高于聚合物电解质膜侧的部分，并且在高分子电解质膜侧的部分处的阴极电极催化剂层的电子传导性低于部分 在阳极扩散层侧，阳极扩散层侧的部分的阳极电极催化剂层的电子传导性高于高分子电解质膜侧的部分的电子传导性， 高分子电解质膜一侧部分的阳极电极催化剂层比Si的部分低 de的阳极扩散层。

    Polymer electrolyte fuel cell
    5.
    发明授权
    Polymer electrolyte fuel cell 有权
    聚合物电解质燃料电池

    公开(公告)号：US07601454B2

    公开(公告)日：2009-10-13

    申请号：US11074931

    申请日：2005-03-09

    申请人： Ryoichiro Takahashi ,  Chikara Iwasawa ,  Masahiro Ise ,  Yoichi Asano ,  Hideki Watanabe ,  Atsuhito Yoshizawa ,  Takashi Suzuki ,  Osamu Kakutani

    发明人： Ryoichiro Takahashi ,  Chikara Iwasawa ,  Masahiro Ise ,  Yoichi Asano ,  Hideki Watanabe ,  Atsuhito Yoshizawa ,  Takashi Suzuki ,  Osamu Kakutani

    IPC分类号： H01M4/96

    CPC分类号： H01M8/1004 ,  H01M4/8605 ,  H01M4/8642 ,  H01M4/8652 ,  H01M4/8657

    摘要： In a polymer electrolyte fuel cell in which a cathode diffusion layer, a cathode electrode catalyst layer, a polymer electrolyte membrane, an anode electrode catalyst layer, and an anode diffusion layer are laminated in this order, electron conductivity of the cathode electrode catalyst layer at a portion on the side of the cathode diffusion layer is higher than at a portion on the side of the polymer electrolyte membrane and electron conductivity of the cathode electrode catalyst layer at the portion on the side of the polymer electrolyte membrane is lower than at the portion on the side of the cathode diffusion layer, and furthermore, electron conductivity of the anode electrode catalyst layer at a portion on the side of the anode diffusion layer is higher than at a portion on the side of the polymer electrolyte membrane and electron conductivity of the anode electrode catalyst layer at the portion on the side of the polymer electrolyte membrane is lower than at the portion on the side of the anode diffusion layer.

    摘要翻译： 在其中依次层叠有阴极扩散层，阴极电极催化剂层，高分子电解质膜，阳极电极催化剂层，阳极扩散层的固体高分子型燃料电池中，阴极电极催化剂层的电子传导性为 阴极扩散层侧的部分高于聚合物电解质膜侧的部分，并且在高分子电解质膜侧的部分处的阴极电极催化剂层的电子传导性低于部分 在阳极扩散层侧，阳极扩散层侧的部分的阳极电极催化剂层的电子传导性高于高分子电解质膜侧的部分的电子传导性， 高分子电解质膜一侧部分的阳极电极催化剂层比Si的部分低 de的阳极扩散层。

    Membrane-electrode structure for solid polymer fuel cell
    7.
    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。

    Membrane electrode assembly for use in solid polymer electrolyte fuel cell
    8.
    发明授权
    Membrane electrode assembly for use in solid polymer electrolyte fuel cell 有权
    用于固体聚合物电解质燃料电池的膜电极组件

    公开(公告)号：US07807314B2

    公开(公告)日：2010-10-05

    申请号：US11714163

    申请日：2007-03-06

    申请人： Shintaro Tanaka ,  Yoichi Asano ,  Ryoichiro Takahashi ,  Takuma Yamawaki

    发明人： Shintaro Tanaka ,  Yoichi Asano ,  Ryoichiro Takahashi ,  Takuma Yamawaki

    IPC分类号： H01M8/10 ,  H01M4/02

    CPC分类号： H01M8/1004 ,  H01M4/8807 ,  H01M8/0243 ,  H01M8/0245

    摘要： A membrane electrode assembly that includes a cathode electrode catalyst layer and an anode electrode catalyst layer respectively disposed on one side and the other side of a solid polymer electrolyte membrane, gas diffusion layers disposed respectively on the sides of the electrode catalyst layers; and intermediate layers having pores and disposed respectively between the electrode catalyst layer and the gas diffusion layer and between the electrode catalyst layer and the gas diffusion layer. The volume per unit area and per unit mass of the pores having pore size of 0.1 to 10 μm in the intermediate layer in the cathode side is larger than that in the intermediate layer in the anode side. The pore volume of the intermediate layer in the cathode side is 1.7 to 4.3 μl/cm2/mg and that of the intermediate layer in the anode side is 0.5 to 1.4 μl/cm2/mg.

    摘要翻译： 一种膜电极组件，其包括分别设置在固体聚合物电解质膜的一侧和另一侧上的阴极电极催化剂层和阳极电极催化剂层，分别设置在电极催化剂层的侧面上的气体扩散层; 和具有孔的中间层，分别设置在电极催化剂层和气体扩散层之间以及电极催化剂层和气体扩散层之间。 阴极侧的中间层的孔径为0.1〜10μm的单位面积体积和单位质量的单位质量比阳极侧的中间层的体积大。 阴极侧的中间层的孔体积为1.7〜4.3μl/ cm 2 / mg，阳极侧的中间层的孔体积为0.5〜1.4μl/ cm 2 / mg。

    Membrane electrode assembly for use in solid polymer electrolyte fuel cell
    9.
    发明授权
    Membrane electrode assembly for use in solid polymer electrolyte fuel cell 有权
    用于固体聚合物电解质燃料电池的膜电极组件

    公开(公告)号：US07897291B2

    公开(公告)日：2011-03-01

    申请号：US11698873

    申请日：2007-01-29

    申请人： Ryoichiro Takahashi ,  Yoichi Asano ,  Shintaro Tanaka ,  Takuma Yamawaki

    发明人： Ryoichiro Takahashi ,  Yoichi Asano ,  Shintaro Tanaka ,  Takuma Yamawaki

    IPC分类号： H01M8/02 ,  H01M8/10 ,  H01M4/94 ,  H01M4/96

    CPC分类号： H01M8/0236 ,  H01M4/926 ,  H01M8/0234 ,  H01M8/0243 ,  H01M8/0245 ,  H01M8/04291 ,  H01M8/1004 ,  H01M2008/1095

    摘要： A membrane electrode assembly including: a solid polymer electrolyte membrane having proton conductivity; a cathode electrode catalyst layer disposed on one side of the solid polymer electrolyte membrane; an anode electrode catalyst layer disposed on the other side of the solid polymer electrolyte membrane; and two gas diffusion layers disposed on a side of the cathode electrode catalyst layer and a side of the anode electrode catalyst layer, respectively; wherein the gas diffusion layer in the anode side is smaller in contact angle to water than the gas diffusion layer in the cathode side. The membrane electrode assembly also includes at least two coating layers different in properties from each other between the gas diffusion layer and the cathode electrode catalyst layer, and at least two coating layers different in properties from each other between the gas diffusion layer and the anode electrode catalyst layer.

    摘要翻译： 一种膜电极组件，包括：具有质子传导性的固体聚合物电解质膜; 设置在固体聚合物电解质膜一侧的阴极电极催化剂层; 设置在固体高分子电解质膜的另一侧的阳极电极催化剂层; 以及分别设置在阴极电极催化剂层侧和阳极电极催化剂层一侧的两个气体扩散层; 其中阳极侧的气体扩散层与阴极侧的气体扩散层的接触角小。 膜电极组件还包括在气体扩散层和阴极电极催化剂层之间彼此不同性质的至少两个涂层，以及气体扩散层和阳极电极之间的至少两个不同性质的涂层 催化剂层。