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    • 1. 发明专利
    • Fuel cell
    • 燃料电池
    • JP2013120657A
    • 2013-06-17
    • JP2011267194
    • 2011-12-06
    • Toyota Motor Corpトヨタ自動車株式会社
    • YOSHIKAWA DAIYU
    • H01M8/02H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To enhance the efficiency of a fuel cell by limiting increase in pressure loss of a cathode gas passage.SOLUTION: The fuel cell includes an electrolyte membrane 121, an anode catalyst layer 122 and a cathode catalyst layer 123 formed, respectively, on both sides of the electrolyte membrane, an anode diffusion layer 132 arranged on the outside of the anode catalyst layer 122, a cathode diffusion layer 133 arranged on the outside of the cathode catalyst layer 123, an anode gas passage 142a arranged on the outside of the anode diffusion layer 132, and a cathode gas passage 143a arranged on the outside of the cathode diffusion layer. When the electrolyte membrane 121 swells, the anode diffusion layer 132 deforms more than the cathode diffusion layer 133.
    • 要解决的问题:通过限制阴极气体通道的压力损失的增加来提高燃料电池的效率。 解决方案:燃料电池包括分别形成在电解质膜两侧的电解质膜121,阳极催化剂层122和阴极催化剂层123,布置在阳极催化剂外侧的阳极扩散层132 层122,设置在阴极催化剂层123的外侧的阴极扩散层133,配置在阳极扩散层132的外侧的阳极气体通路142a和配置在阴极扩散层的外侧的阴极气体通路143a 。 当电解质膜121膨胀时,阳极扩散层132比阴极扩散层133变得更大。版权所有:(C)2013,JPO&INPIT
    • 2. 发明专利
    • Fuel cell
    • 燃料电池
    • JP2010080222A
    • 2010-04-08
    • JP2008246387
    • 2008-09-25
    • Toyota Motor Corpトヨタ自動車株式会社
    • SATO KENJIYOSHIKAWA DAIYUKAWAKADO AKITO
    • H01M8/24H01M8/00H01M8/02H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To provide a fuel cell excelling in efficiency in such maintenance as to extract and replace a fuel cell lowered in performance out of a fuel cell stack while effectively preventing dissimilar materials from sticking to an electrolyte membrane in each fuel cell forming the fuel cell stack. SOLUTION: The fuel cell 10 includes a membrane electrode assembly 1; anode side and cathode side porous bodies 6, 5 forming gas passages for holding the membrane electrode assembly; and a separator 7 on either the anode side or the cathode side. A plurality of such fuel cells 10 are laminated, and gaskets 8 are integrally formed at the peripheral edges of the laminated membrane electrode assemblies 1 and porous bodies 5, 6 to form one module 100 comprising a plurality of fuel cells 10. A plurality of modules 100 are laminated to form the fuel cell stack. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供这样的维护效率优异的燃料电池,以从燃料电池堆中提取和更换性能降低的燃料电池,同时有效地防止异种材料粘附到每种燃料中的电解质膜 形成燃料电池堆的电池。 解决方案:燃料电池10包括膜电极组件1; 阳极侧和阴极侧多孔体6,5形成用于保持膜电极组件的气体通道; 以及阳极侧或阴极侧的隔膜7。 层叠多个这样的燃料电池10,并且在层叠的膜电极组件1和多孔体5,6的周边边缘处一体地形成垫圈8,以形成包括多个燃料电池10的一个模块100.多个模块 100层压以形成燃料电池堆。 版权所有(C)2010,JPO&INPIT
    • 3. 发明专利
    • Temperature sensor for fuel cell
    • 燃料电池温度传感器
    • JP2008185437A
    • 2008-08-14
    • JP2007018684
    • 2007-01-30
    • Nippon Soken IncToyota Motor Corpトヨタ自動車株式会社株式会社日本自動車部品総合研究所
    • MATSUHIRO YASUSHIYOSHIKAWA DAIYU
    • G01K7/02H01M8/04H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To prevent deterioration of a generation performance of a fuel cell and to improve detection precision. SOLUTION: A thermocouple temperature sensor 50 is so configured that thermocouple wires 51, 52 are bonded with each other, and the whole part is covered with a cover layer 54. The cover layer 54 is constituted of a first cover layer 54a for covering the outer periphery of the thermocouple wires 51, 52 and a second cover layer 54b for covering the outer periphery of the first cover layer 54a. The first cover layer 54a is made of a polyimide film having insulation property. The first cover layer 54a is constituted so as to maintain a mechanical strength in an extent that it is not damaged even when it is applied with a stress of 3.0 MPa under the operation temperature of the fuel cell 10 in a solid polymer type. The second cover layer 54b is made of a gas impermeable dense member, e.g., a Cr (chrome) film. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了防止燃料电池的发电性能的劣化并提高检测精度。 解决方案:热电偶温度传感器50被配置为使得热电偶线51,52彼此接合,并且整个部分被覆盖层54覆盖。覆盖层54由第一覆盖层54a构成,第一覆盖层54a用于 覆盖热电偶线51,52的外周和覆盖第一覆盖层54a的外周的第二覆盖层54b。 第一覆盖层54a由具有绝缘性的聚酰亚胺膜制成。 第一覆盖层54a构成为即使在固体聚合物类型的燃料电池10的操作温度下施加3.0MPa的应力的情况下,也能够使机械强度保持在不损坏的程度。 第二覆盖层54b由气体不可渗透的致密构件例如Cr(铬)膜制成。 版权所有(C)2008,JPO&INPIT
    • 5. 发明专利
    • Fuel cell
    • 燃料电池
    • JP2008047319A
    • 2008-02-28
    • JP2006219395
    • 2006-08-11
    • Toyota Motor Corpトヨタ自動車株式会社
    • SATO KENJIYOSHIKAWA DAIYUTSUBOSAKA KENJISHIINA KENSUKE
    • H01M8/02H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To provide a technology for a fuel cell capable of dispersing pressure in a lamination direction on a joint face of constituent components and restraining degradation of conductivity between conductive plates. SOLUTION: The fuel cell with two sheets of conductive plates constituting separators includes a cylindrical body structured of an elastic material arranged between each two conductive plates with its hollow part inside to be a coolant flow channel and a conductive member coated at least on a part of an outside face of the elastic material, with the conductive member connected with each conductive plate. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够将层压方向上的压力分散在构成部件的接合面上并抑制导电性板之间的导电性降低的燃料电池的技术。 解决方案:具有构成分离器的两片导电板的燃料电池包括由布置在每个两个导电板之间的弹性材料构成的圆柱形主体,其中空部分在内部,以形成冷却剂流动通道,并且至少涂覆有导电部件 弹性材料的外表面的一部分,导电构件与每个导电板连接。 版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • Fuel cell and its manufacturing method
    • 燃料电池及其制造方法
    • JP2006210027A
    • 2006-08-10
    • JP2005017580
    • 2005-01-26
    • Toyota Motor Corpトヨタ自動車株式会社
    • SHIBATA KAZUNORITAKAHASHI MANABUOCHI TSUTOMUYOSHIKAWA DAIYUSUZUKI TOSHIYUKIKATO KAZUTOMONAKAJI HIROYANISHIDA TSUNEMASAASAI YASUYUKI
    • H01M8/02H01M8/10
    • Y02P70/56
    • PROBLEM TO BE SOLVED: To provide a fuel cell suppressing deterioration in durability of a membrane at a catalyst layer end edge, and to provide its manufacturing method. SOLUTION: (1) In the fuel cell, the density of a first diffusion layer part (an outer peripheral part) 13a is higher than that in a second diffusion layer part (an inner peripheral part) 13b. (2) The first diffusion layer part is compressed by contact pressure higher than the second diffusion layer part. (3) The thickness of the first diffusion layer part is larger than that of the second diffusion layer part. (4) A first separator part 18a is protruded to the diffusion layer side than a second separator part 18b. (5) The manufacturing method of the fuel cell is that diffusion layers 13, 16 are contact-bonded to an MEA 12 in different conditions according to the thickness of the membrane-electrode assembly. (6) The condition is pressure. (7) The condition is temperature. (8) The condition is time. (9) The condition is material of the diffusion layer or the amount of a water-repellent agent. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种抑制催化剂层端部边缘处的膜的耐久性劣化的燃料电池,并提供其制造方法。 (1)在燃料电池中,第一扩散层部(外周部)13a的密度高于第二扩散层部(内周部)13b的密度。 (2)通过比第二扩散层部分高的接触压力来压缩第一扩散层部分。 (3)第一扩散层部分的厚度大于第二扩散层部分的厚度。 (4)第一分离器部分18a比第二分离器部分18b突出到扩散层侧。 (5)燃料电池的制造方法是,扩散层13,16根据膜 - 电极组件的厚度在不同的条件下与MEA 12接触接合。 (6)条件是压力。 (7)条件是温度。 (8)条件是时间。 (9)条件是扩散层的材料或防水剂的量。 版权所有(C)2006,JPO&NCIPI
    • 10. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2005340041A
    • 2005-12-08
    • JP2004158658
    • 2004-05-28
    • Toyota Motor Corpトヨタ自動車株式会社
    • OCHI TSUTOMUSUZUKI TOSHIYUKIYOSHIKAWA DAIYUABE KATSUJI
    • H01M8/02H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To provide a fuel cell which is improved to allow a current density distribution in an MEA to be more uniform. SOLUTION: The fuel cell generating electricity using an electrochemical reaction with a fuel gas and an oxidation gas comprises: a plurality of unit cells including the MEA (membrane/electrode assembly) 10 where an electrode is provided on either side of an electrolyte film 13; and two separators 16, 17 which sandwich this film from both sides respectively. For two or more of parameters associated with the electrochemical reaction of the MEA, a characteristic of the current density of the MEA or a gas pressure at a gas inlets side region 10a is inhibited in comparison with that at a gas outlet side region 10b by the parameters. The adjustment using the two or more parameters allows the current density to be more uniform. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供改进以允许MEA中的电流密度分布更均匀的燃料电池。 解决方案:使用与燃料气体和氧化气体的电化学反应发电的燃料电池包括:多个单元电池,包括MEA(膜/电极组件)10,其中电极设置在电解质的两侧 电影13 以及两个分离器16,17,分别从两侧夹着该胶片。 对于与MEA的电化学反应相关的两个或更多个参数,MEA的电流密度或气体入口侧区域10a处的气体压力的特性与气体出口侧区域10b的特性相比被抑制 参数。 使用两个或更多个参数的调整允许电流密度更均匀。 版权所有(C)2006,JPO&NCIPI