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    • 1. 发明专利
    • Solid polymer fuel cell
    • 固体聚合物燃料电池
    • JP2011113703A
    • 2011-06-09
    • JP2009267160
    • 2009-11-25
    • Hitachi Ltd株式会社日立製作所
    • ONUMA ATSUHIKOMORISHIMA SHINKAWAJI JUN
    • H01M8/02H01M8/10
    • Y02E60/523
    • PROBLEM TO BE SOLVED: To provide an inexpensive solid polymer electrolyte membrane having excellent mechanical characteristics and oxidation resistance, and to provide a solid polymer fuel cell high in output and high in durability (long life).
      SOLUTION: The solid polymer fuel cell includes: a solid polymer electrolyte membrane/electrode conjugant obtained by joining solid polymer electrolyte membranes 24 and 25 and electrode catalyst layers 12 and 13 to be integrated; and gas diffusion layers 14 and 15 formed on both surfaces of the solid polymer electrolyte membrane/electrode conjugant. The gas diffusion layers 14 and 15 are formed so that entire surfaces of the electrode catalyst layers 12 and 13 are covered with the gas diffusion layers, and the periphery 40 of a projected image of each gas diffusion layer from the vertical direction is included in a surface of the solid polymer electrolyte membrane 24. The solid polymer electrolyte membrane has: the center 25 including at least a part where the electrode catalyst layers 12 and 13 are joined; and the peripheral section 24 in a range between the periphery 41 of the solid polymer electrolyte membrane and at least a position of the periphery 40 of each projected image of the gas diffusion layers 14 and 15. An ion exchange capacity of a polymer material at the peripheral section 24 is smaller than that of a polymer material at the center 25.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供具有优异的机械特性和抗氧化性的廉价的固体聚合物电解质膜,并且提供高产出和高耐久性(长寿命)的固体聚合物燃料电池。 固体聚合物燃料电池包括:通过将固体聚合物电解质膜24和25与电极催化剂层12和13接合而获得的固体聚合物电解质膜/电极共轭体,以一体化; 以及形成在固体高分子电解质膜/电极共轭体的两面的气体扩散层14,15。 气体扩散层14和15形成为使得电极催化剂层12和13的整个表面被气体扩散层覆盖,并且每个气体扩散层的垂直方向的投影图像的周边40包括在 该固体高分子电解质膜具有:至少包含电极催化剂层12,13的一部分的中心25; 以及周边部分24在固体聚合物电解质膜的周边41与气体扩散层14和15的每个投影图像的至少周边40的位置之间的范围内。在该处,聚合物材料的离子交换容量 周边部分24小于中心部分25的聚合物材料。版权所有:(C)2011,JPO&INPIT
    • 3. 发明专利
    • Direct alcohol type fuel cell
    • 直接酒精型燃料电池
    • JP2013157227A
    • 2013-08-15
    • JP2012017482
    • 2012-01-31
    • Hitachi Ltd株式会社日立製作所
    • KAWAJI JUNSUZUKI SHUICHIMIZUKAMI TAKAAKIANDO SHINSUKEONUMA ATSUHIKO
    • H01M8/02H01M8/10
    • Y02E60/522
    • PROBLEM TO BE SOLVED: To provide a direct alcohol type fuel cell with a long life by preventing deterioration and breakage of an electrolyte membrane at an electrode outer periphery accompanied with continuous power generation.SOLUTION: A direct alcohol type fuel cell comprises: a pair of anode and cathod provided on both faces of a solid polymer electrolyte membrane; a non-ion conductive frame body provided on a surface of the solid polymer electrolyte membrane and covering peripheries of the anode and the cathode; and a conductive plate opposed to the anode and the cathode and having a reaction gas passage. The anode, the cathode and the frame body are arranged to have a first region, in which an end of the cathode is positioned on an outer side than an inner peripheral edge of the frame body provided on the anode side, and a second region, in which the end of the cathode and the end of the anode are at the same position or the end of the cathode is positioned on an inner side than the end of the anode. The end of the cathode adjacent to a manifold for supplying fuel provided on the solid polymer membrane and the conductive plate serves as the first region.
    • 要解决的问题:通过防止伴随连续发电的电极外周处的电解质膜的劣化和断裂来提供具有长寿命的直链醇型燃料电池。解决方案:直链醇型燃料电池包括:一对 设置在固体聚合物电解质膜的两面上的阳极和阴极; 设置在固体聚合物电解质膜的表面上并覆盖阳极和阴极的周边的非离子导电性框架体; 和与阳极和阴极相对的并具有反应气体通道的导电板。 阳极,阴极和框架体被布置成具有第一区域,其中阴极的端部位于设置在阳极侧的框架体的内周边缘的外侧上,第二区域, 其中阴极的端部和阳极的端部处于相同的位置或阴极的端部位于比阳极的端部更靠内侧。 靠近用于供给设置在固体聚合物膜上的燃料的歧管的阴极的端部和导电板用作第一区域。
    • 5. 发明专利
    • Fuel cell
    • 燃料电池
    • JP2010108908A
    • 2010-05-13
    • JP2009154520
    • 2009-06-30
    • Hitachi Ltd株式会社日立製作所
    • KAWAJI JUNMORISHIMA SHINSUZUKI SHUICHITAKAMORI YOSHIYUKIONUMA ATSUHIKOMOGI AKIRA
    • H01M8/02H01M4/86H01M8/10
    • Y02E60/523Y02P70/56
    • PROBLEM TO BE SOLVED: To provide a structure of a membrane-electrode assembly suppressing deterioration and breakage of an electrolyte membrane in the outer peripheral region of an electrode by suppressing the generation of hydrogen peroxide at an electrode end part in a fuel cell and the diffusion of hydrogen peroxide to the outer peripheral region of the electrode, to provide its constituent material, its manufacturing method, and to provide a fuel cell using the membrane-electrode assembly. SOLUTION: The fuel cell is configured such that at least one of an anode and a cathode is embedded in a solid polymer electrolyte membrane, and the thickness of an electrolyte in the periphery of the electrode is larger than the sum of the thickness of the electrode between electrodes, the thickness of the anode and the thickness of the cathode. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:通过抑制在燃料电池的电极端部产生过氧化氢,提供抑制电极外周区域中的电解质膜的劣化和断裂的膜 - 电极组件的结构 以及过氧化氢扩散到电极的外周区域,提供其构成材料及其制造方法,并提供使用该膜 - 电极组件的燃料电池。 解决方案:燃料电池被构造为使得阳极和阴极中的至少一个嵌入固体聚合物电解质膜中,并且电极周围的电解质的厚度大于厚度的总和 的电极之间的电极,阳极的厚度和阴极的厚度。 版权所有(C)2010,JPO&INPIT
    • 7. 发明专利
    • Solid polymer electrolyte fuel cell
    • 固体聚合物电解质燃料电池
    • JP2011216380A
    • 2011-10-27
    • JP2010084761
    • 2010-04-01
    • Hitachi Ltd株式会社日立製作所
    • ONUMA ATSUHIKOMORISHIMA SHIN
    • H01M8/02H01M4/86H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To provide a solid polymer electrolyte fuel cell using a hydrocarbonaceous polymer as an inexpensive raw material having improved mechanical characteristics and oxidation resistance for a polymer electrolyte membrane, and having combined reduced cost, high output and high durability (long life) by minimizing the effects of peroxide or peroxide radicals even when produced along with power generation.SOLUTION: The solid polymer electrolyte fuel cell includes a membrane-electrode assembly having the polymer electrolyte membrane and electrode catalyst layers arranged on both sides of the polymer electrolyte membrane and integrally joined thereto, and gas diffusion layers provided on both sides of the membrane-electrode assembly in contact with the electrode catalyst layers. The electrode catalyst layers each consist of a membrane-shaped electrode catalyst part where power-generation electrode reaction takes place, and a ring-shaped peroxide decomposing part containing a peroxide decomposing catalyst and formed on the outer periphery of the electrode catalyst part. The main surface of the electrode catalyst layer is larger than that of the gas diffusion layer, and the whole main surface on one side of the electrode catalyst layer is joined to the polymer electrode membrane.
    • 要解决的问题:为了提供一种使用含烃聚合物作为廉价原料的固体聚合物电解质燃料电池,其对于聚合物电解质膜具有改进的机械特性和抗氧化性,并且具有组合的降低成本,高产出和高耐久性(长寿命) 通过最小化过氧化物或过氧化物自由基的作用,即使当与发电一起产生时也是如此。解决方案:固体聚合物电解质燃料电池包括具有聚合物电解质膜和布置在聚合物电解质膜两侧的电极催化剂层的膜 - 电极组件, 和与电极催化剂层接触的设置在膜 - 电极组件两侧的气体扩散层。 电极催化剂层各自由发生发电电极反应的膜状电极催化剂部分和形成在电极催化剂部分的外周上的含有过氧化物分解催化剂的环状过氧化物分解部构成。 电极催化剂层的主表面大于气体扩散层的主表面,电极催化剂层一侧的整个主表面与聚合物电极膜接合。
    • 9. 发明专利
    • Production method of block copolymer using reactive oligomer
    • 使用反应性低聚物制备嵌段共聚物的方法
    • JP2010116503A
    • 2010-05-27
    • JP2008291437
    • 2008-11-13
    • Hitachi Ltd株式会社日立製作所
    • FUKUCHI IWAOASANO NAOKITAKEDA SHINJIONUMA ATSUHIKOMORISHIMA SHIN
    • C08G75/23H01B1/06H01M8/02H01M8/10
    • Y02P70/56
    • PROBLEM TO BE SOLVED: To efficiently provide a block copolymer comprising a hydrophilic aromatic polymer compound having a protonic acid group and a hydrophobic aromatic polymer compound having no protonic acid group. SOLUTION: The block copolymer is produced through steps of: (a) preparing a first aromatic polymer compound having a perfluorobiphenyl group at a molecular end and having a protonic acid group; (b) preparing a second aromatic polymer compound having a reactive group at a molecular end that can react with the perfluorobiphenyl group described in (a) and having no protonic acid group; and (c) preparing a copolymer comprising the first aromatic polymer compound and the second aromatic polymer compound bonded to each other. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:有效提供包含具有质子酸基团的亲水性芳香族高分子化合物和不具有质子酸基团的疏水性芳香族高分子化合物的嵌段共聚物。 解决方案:通过以下步骤制备嵌段共聚物:(a)制备在分子末端具有全氟联苯基并具有质子酸基团的第一芳族聚合物化合物; (b)制备在分子端具有反应性基团的第二芳族聚合物化合物,其可以与(a)中所述的全氟联苯基反应并且不具有质子酸基团; 和(c)制备包含彼此键合的第一芳族聚合物化合物和第二芳族聚合物化合物的共聚物。 版权所有(C)2010,JPO&INPIT