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21. 发明公开

EP3699990A1 SPRING MEMBER, FUEL CELL UNIT, AND FUEL CELL STACK 有权转让
公开(公告)号：EP3699990A1
公开(公告)日：2020-08-26
申请号：EP18858248.0
申请日：2018-08-28
申请人： Nissan Motor Co., Ltd. , NHK Spring Co., Ltd.
发明人： YAGINUMA, Motoki , YASUTAKE, Akira , TAJIMA, Norihiro , KAWASAKI, Koichi
IPC分类号： H01M8/0247 , H01M8/2465 , H01M8/12
摘要： [PROBLEM] To provide a spring member, a fuel cell unit, and a fuel cell stack that can prevent a decrease in the power generation performance of a fuel cell caused by creep deformation of the spring member.
[SOLUTION] A spring member 130 is used in a fuel cell stack 100 and comprises a planar portion 131 that is joined to a separator in a state of surface contact with the separator 102, and a spring portion 132 that extends from the planar portion to generate an elastic force that presses the separator toward a power generation cell 101M by receiving force in a stacking direction Z of a cell unit and undergoing bending deformation.

22. 发明公开

EP3686978A1 SPRING MEMBER, FUEL CELL UNIT, FUEL CELL STACK, AND METHOD FOR MANUFACTURING FUEL CELL STACK 审中-公开
公开(公告)号：EP3686978A1
公开(公告)日：2020-07-29
申请号：EP18859277.8
申请日：2018-08-28
申请人： Nissan Motor Co., Ltd.
发明人： YAGINUMA, Motoki , TAJIMA, Norihiro , KAWASAKI, Koichi
IPC分类号： H01M8/0247 , H01M8/0297 , H01M8/2432 , H01M8/12
摘要： [PROBLEM] To provide a spring member, a fuel cell unit, a fuel cell stack, and a method for manufacturing a fuel cell stack that can prevent a decrease in the power generation performance caused by creep deformation of the spring member.
[SOLUTION] A grid spring is provided with a first raised piece 130A that generate an elastic force for pressing a separator 102 toward a power generation cell and a second raised piece 130B that generate an elastic force independently of the first raised piece 130A, wherein the spring constant of the first raised pieces decreases as a result of the heating of the grid spring, the grid spring functions as a high reaction force spring as a result of the larger spring constant of the first spring member relative to the spring constant of the second spring member before heating, and, after being heated, the grid spring functions as a low reaction force spring as a result of the smaller spring constant of the first spring member before being heated.

23. 发明公开

EP3373371A1 SINGLE CELL STRUCTURE FOR FUEL CELLS, AND FUEL CELL STACK STRUCTURE WHEREIN SAID FUEL CELL SINGLE CELLS ARE STACKED 有权
公开(公告)号：EP3373371A1
公开(公告)日：2018-09-12
申请号：EP15907820.3
申请日：2015-11-06
申请人： Nissan Motor Co., Ltd.
发明人： ICHIHARA, Keiji , YAGINUMA, Motoki , YASUTAKE, Akira
IPC分类号： H01M8/02 , H01M8/0202 , H01M8/10
CPC分类号： H01M8/0273 , H01M8/0258 , H01M8/242 , H01M8/2483 , H01M2008/1095
摘要： The fuel cell single cell of the present invention includes: a membrane electrode assembly; a low-rigidity frame that supports the membrane electrode assembly; a pair of separators that holds the low-rigidity frame and the membrane electrode assembly therebetween; a gas channel for supplying gas to the membrane electrode assembly between the pair of separators; manifold parts that are formed in the low-rigidity frame and the pair of separators to supply the gas to the gas channel; restraining ribs that restrain the low-rigidity frame near the manifold parts; a projected part of the low-rigidity frame that projects toward the manifold parts beyond the restraining ribs; and a gas flow part that is formed in the projected part to supply the gas from the manifold part to the gas channel.

24. 发明公开

EP3297081A1 FUEL CELL STACK 有权
标题翻译：燃料电池堆
公开(公告)号：EP3297081A1
公开(公告)日：2018-03-21
申请号：EP15891847.4
申请日：2015-05-13
申请人： Nissan Motor Co., Ltd.
发明人： YAGINUMA, Motoki , YASUTAKE, Akira
IPC分类号： H01M8/24 , H01M8/02 , H01M8/10
CPC分类号： H01M8/0276 , H01M8/0271 , H01M8/1004 , H01M8/242 , H01M8/2483 , H01M8/2485 , H01M8/249 , H01M2008/1095 , Y02P70/56
摘要： A fuel cell stack FS includes: a plurality of cell modules M each including an integrally stacked plurality of single cells C; a sealing plate P intervened between each of the plurality of cell modules M; a manifold M3 that penetrates the plurality of cell modules M and the scaling plate(s) P in a stacking direction to distribute reaction gas, wherein the sealing plate P includes a sealing member S4 that surrounds and seals the manifold M3 between the sealing plate P and each of the plurality of cell modules M, and the sealing member S4 includes an extended portion E that extends toward the manifold M3 so that an end face F4 of the extended portion E is flush with an inner wall of the manifold M3. Generated water is suitably discharged through the manifold M3 without a decrease of the flowability of the reaction gas and an increase of the production cost.
摘要翻译：燃料电池堆FS包括：多个电池模块M，每个电池模块包括整体堆叠的多个单电池C; 密封板P，其介于多个电池模块M中的每一个之间; 歧管M3，其沿层叠方向贯通多个单电池组件M及标度板P而分配反应气体;密封板P具有密封部件S4，该密封部件S4将密封板P 以及多个电池模块M中的每一个，并且密封构件S4包括延伸部E，该延伸部E朝向歧管M3延伸，使得延伸部E的端面F4与歧管M3的内壁齐平。生成的水适当通过歧管M3排出，而不会降低反应气体的流动性和生产成本的增加。

25. 发明公开

EP2826093A1 SINGLE FUEL CELL, FUEL CELL STACK, AND METHOD OF MANUFACTURING FUEL CELL STACK 有权
标题翻译：单电池，燃料电池堆和方法用于生产燃料电池堆
公开(公告)号：EP2826093A1
公开(公告)日：2015-01-21
申请号：EP13718655.7
申请日：2013-03-12
申请人： Nissan Motor Co., Ltd
发明人： FUKUYAMA, Yosuke , IRITSUKI, Keita , YAGINUMA, Motoki , SHIOMI, Takeshi , MIYAOKA, Hiroshi , KANAMORI, Kenji , SATO, Kazuyuki
IPC分类号： H01M8/24 , H01M8/02
CPC分类号： H01M8/04074 , H01M8/02 , H01M8/0206 , H01M8/0254 , H01M8/0258 , H01M8/0267 , H01M8/0297 , H01M8/2457 , H01M8/2465 , H01M8/247 , H01M8/2483 , H01M2008/1095 , H01M2300/0082 , Y02P70/56
摘要： A single fuel cell, a plurality of which are to be stacked to form a fuel cell stack, includes a membrane electrode assembly having a structure including paired electrode layers and an electrolyte membrane held between the paired electrode layers, paired separators each forming a gas passage between the separator and the membrane electrode assembly, and a displacement absorber having a conductive property and interposed between one separator of the single fuel cell and an adjacent-side separator of another single fuel cell to be stacked adjacent to the single fuel cell. The displacement absorber is connected to at least any one of the separators.

26. 发明公开

EP2826088A1 FUEL CELL 失效
标题翻译：燃料电池
公开(公告)号：EP2826088A1
公开(公告)日：2015-01-21
申请号：EP13717333.2
申请日：2013-03-14
申请人： Nissan Motor Co., Ltd
发明人： YAGINUMA, Motoki , KOTAKA, Toshikazu
IPC分类号： H01M8/02
CPC分类号： H01M8/1004 , H01M8/0232 , H01M8/0234 , H01M8/0245 , H01M8/0273 , H01M8/0284 , H01M8/1007 , H01M2008/1095
摘要： A fuel cell includes: a membrane electrode assembly including an electrolyte membrane, catalyst layers stacked on both sides of the electrolyte membrane, and two or more porous bodies having different moduli of elasticity and provided on a surface of one of the catalyst layers; a separator defining a gas flow passage between the separator and the membrane electrode assembly; and a frame body surrounding an outer periphery of the electrolyte membrane. A porous body adjacent to the separator out of the two or more porous bodies includes an outer edge portion including an outer extending portion extending to overlap with the frame body. An elastic body is provided between the outer extending portion and the frame body.
摘要翻译：燃料电池（B1-B4）包括：包括电解质膜（50）的膜电极组件（C），堆叠在电解质膜（50）的两侧上的催化剂层（60,70）以及两个或更多个多孔体（80,90），其具有不同的弹性模量并设置在所述催化剂层（60,70）中的一个的表面上; 限定分离器（15）和膜电极组件（C）之间的气体流动通道的分离器（15）; 和围绕电解质膜（50）的外周的框体（20）。两个或更多个多孔体（80,90）中的与分离器（15）相邻的多孔体（80）包括外边缘部分，该外边缘部分包括延伸以与框架体（20）重叠的外延伸部分（80a）。弹性体（40）设置在外延伸部分（80a）和框架体（20）之间。

27. 发明公开

EP2808929A1 FUEL CELL 有权
标题翻译：燃料电池
公开(公告)号：EP2808929A1
公开(公告)日：2014-12-03
申请号：EP13741498.3
申请日：2013-01-21
申请人： NISSAN MOTOR CO., LTD.
发明人： KOTAKA, Toshikazu , YAGINUMA, Motoki
IPC分类号： H01M8/02 , H01M4/86 , H01M8/10
CPC分类号： H01M4/8657 , H01M4/8605 , H01M4/8636 , H01M8/0232 , H01M8/0234 , H01M8/0245 , H01M8/0273 , H01M8/1004 , H01M2008/1095
摘要： A fuel cell includes a membrane electrode assembly M having an electrolyte membrane 1, catalyst layers 6 disposed on both sides of the electrolyte membrane 1, and three or more layers of porous bodies disposed on a front surface side of the catalyst layer; a frame body 4 surrounding an outer periphery of the electrolyte membrane 1; and a separator 5 for partitioning and forming a gas passage G between the membrane electrode assembly and the separator. Extended portions 11A and 12A are provided at the outer edge of a first porous body 11 adjacent to the separator 5 among the three layers of the porous bodies, and at the outer edge of a second porous body 12 adjacent to the first porous body 11, respectively. The extended portions 11A and 12A intervene between the frame body 4 and the separator 5, which prevents the excessive surface pressure from being applied between the extended portion 11A of the first porous body 11 and the frame body 4, thereby optimizing the surface pressure applied to the power generation region (region where the catalyst layer 6 is formed) of the membrane electrode assembly M.
摘要翻译：燃料电池包括：具有电解质膜1，设置在电解质膜1的两侧上的催化剂层6以及设置在催化剂层的前表面侧上的三层或更多层多孔体的膜电极组件M; 包围电解质膜1的外周的框体4，以及在膜电极接合体与隔膜之间隔开形成气体通路G的隔膜5。延伸部分11A和12A设置在三层多孔体中的与隔板5相邻的第一多孔体11的外边缘处，并且在与第一多孔体11相邻的第二多孔体12的外边缘处，分别。延伸部分11A和12A介于框体4和隔板5之间，防止过量的表面压力施加在第一多孔体11的延伸部分11A和框体4之间，从而优化施加到膜电极组件M的发电区域（形成催化剂层6的区域）。

28. 发明授权

EP2025027B1 FUEL CELL STACK AND METHOD OF PRODUCING ITS SEPARATOR PLATES 有权
标题翻译：燃料电池堆和方法出示其砧板
公开(公告)号：EP2025027B1
公开(公告)日：2011-03-23
申请号：EP07734565.0
申请日：2007-05-15
申请人： Nissan Motor Co., Ltd.
发明人： MIYAZAWA, Atsushi , YAGINUMA, Motoki , OBIKA, Motoharu , TAKATA, Koshi , KINO, Nobuo , FUKUYAMA, Yosuke
IPC分类号： H01M8/02 , H01M8/10
CPC分类号： H01M8/1004 , B23K26/244 , B23K2201/34 , B23K2203/08 , H01M8/0206 , H01M8/021 , H01M8/0228 , H01M8/0254 , H01M8/0256 , H01M8/0258 , H01M8/0267 , H01M8/0297 , H01M8/04029 , H01M8/2404 , H01M8/241 , H01M8/2457 , H01M8/2483 , H01M2008/1095 , H01M2250/20 , Y02E60/521 , Y02P70/56 , Y02T90/32
摘要： A cell (2) of a fuel cell includes a membrane electrode assembly (3), and metal first (7A) and second (7C) separators which sandwich the membrane electrode assembly to form gas flow paths (8A, 8C) disposed on each side of the membrane electrode assembly. A back surface (26) of the first separator and a back surface (26) of the second separator, the first separator and the second separator being included in adjacent cells, are in contact with each other, thereby forming a temperature-control medium flow path (9) between the first separator and the second separator. In the first separator and the second separator, corrosion-resistant coating layers (27) are provided only on reaction-side surfaces (25) of the first separator and the second separator, the reaction-side surfaces facing the membrane electrode assembly, and portions where the back surface of the first separator is in contact with the back surface of the second separator are joined by welded portions (10).

29. 发明公开

EP2025034A2 FUEL CELL STACK AND METHOD FOR MAKING THE SAME 有权
标题翻译：燃料电池堆及其制备方法
公开(公告)号：EP2025034A2
公开(公告)日：2009-02-18
申请号：EP07734564.3
申请日：2007-05-15
申请人： Nissan Motor Co., Ltd.
发明人： TAKATA, Koshi , OSADA, Takahito , MIYAZAWA, Atsushi , OBIKA, Motoharu , YAGINUMA, Motoki
IPC分类号： H01M8/24 , H01M8/02
CPC分类号： H01M8/241 , H01M8/0206 , H01M8/0228 , H01M8/0258 , H01M8/0267 , H01M8/0297 , H01M8/04067 , H01M2008/1095 , Y02P70/56 , Y10T29/49108
摘要： A fuel cell stack (1) includes a membrane electrode assembly (3) including an electrolyte membrane (4) and electrode catalyst layers (5A, 5C) sandwiching the electrolyte membrane; metal separators (7A, 7C) that define gas channels (8A, 8C), the metal separators being respectively disposed at both surfaces of the membrane electrode assembly; a current collector (14) from which electromotive force is derived, the current collector being in contact with at least one of the metal separators; and joining parts (11) that join the metal separator to the current collector at portions where the metal separator contacts the current collector.

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