Fuel cell stack
    61.
    发明授权

    公开(公告)号:US07070872B2

    公开(公告)日:2006-07-04

    申请号:US10256409

    申请日:2002-09-27

    IPC分类号: H01M8/12 H01M2/00 H01M2/02

    摘要: A first membrane electrode assembly is interposed between a first separator and a second separator. A second membrane electrode assembly is interposed between the second separator and another first separator. The second separator includes a first separator plate, a second separator plate, and a leaf spring interposed between the first separator plate and the second separator plate. Each of the first separator plate and the second separator plate has an embossed section made up of first protrusions protruding toward the leaf spring and first recesses spaced from the leaf spring. The first protrusions of the embossed section in one separator plate are in alignment with the first recesses of the embossed section in the other separator plate, respectively.

    Fuel cell stack
    62.
    发明申请
    Fuel cell stack 有权
    燃料电池堆

    公开(公告)号:US20060110642A1

    公开(公告)日:2006-05-25

    申请号:US11281720

    申请日:2005-11-16

    IPC分类号: H01M8/04 H01M2/02

    摘要: A fuel cell stack includes a stack body formed by stacking a plurality of power generation cells in a stacking direction. At opposite ends of the stack body in the stacking direction, end power generation cells are provided. An end coolant flow field is formed on a separator of the end power generation cell. The flow rate of the coolant in the end coolant flow field is smaller than the flow rate of the coolant in a coolant flow field in each of the power generation cells. Specifically, the number of flow grooves of the end coolant flow field is smaller than the number of flow grooves of the coolant flow field.

    摘要翻译: 燃料电池堆包括通过在层叠方向堆叠多个发电电池而形成的堆叠体。 在层叠方向上的堆叠体的相对端,设置端部发电单元。 端部冷却剂流场形成在端部发电单元的隔板上。 末端冷却剂流场中的冷却剂的流量小于每个发电单元中的冷却剂流场中的冷却剂的流量。 具体地说,端部冷却剂流场的流动槽的数量小于冷却剂流场的流动槽的数量。

    Fuel cell with an electrolyte membrane and gas diffusion layers
    64.
    发明授权
    Fuel cell with an electrolyte membrane and gas diffusion layers 有权
    具有电解质膜和气体扩散层的燃料电池

    公开(公告)号:US09559376B2

    公开(公告)日:2017-01-31

    申请号:US13521639

    申请日:2011-01-12

    摘要: Disclosed is a fuel cell in which an electrolyte membrane-electrode structure is held between the first separator and a second separator. The electrolyte membrane-electrode structure comprises a solid polymer electrolyte membrane, a cathode-side electrode and an anode-side electrode. An end portion of the solid polymer electrolyte membrane projects outwardly beyond end portions of gas diffusion layers, and the both surfaces of the end portion of the solid polymer electrolyte membrane are held between the first protective film and a second protective film. The thickness of the first protective film is set to be thinner than the thickness of the second protective film.

    摘要翻译: 公开了一种燃料电池,其中电解质膜 - 电极结构保持在第一隔板和第二隔板之间。 电解质膜 - 电极结构包括固体聚合物电解质膜,阴极侧电极和阳极侧电极。 固体聚合物电解质膜的端部向外突出超过气体扩散层的端部,并且固体聚合物电解质膜的端部的两个表面保持在第一保护膜和第二保护膜之间。 第一保护膜的厚度设定为比第二保护膜的厚度薄。

    FUEL CELL
    65.
    发明申请
    FUEL CELL 有权
    燃料电池

    公开(公告)号:US20130209909A1

    公开(公告)日:2013-08-15

    申请号:US13880919

    申请日:2011-09-05

    IPC分类号: H01M8/04

    摘要: A cell unit constituting a fuel cell is provided with a first electrolyte membrane/electrode structure, a first separator, a second electrolyte membrane/electrode structure, and a second separator. The first and second electrolyte membrane/electrode structures respectively have a frame section on the outer periphery, and the frame sections are formed with a fluid communicating hole extending in the stacking direction. The first and second separators are disposed towards the inside of the fluid communication hole and are respectively provided with two metal plates which have the same shape and which are stacked on one another.

    摘要翻译: 构成燃料电池的电池单元设置有第一电解质膜/电极结构,第一隔板,第二电解质膜/电极结构和第二隔板。 第一和第二电解质膜/电极结构在外周分别具有框架部分,并且框架部分形成有在堆叠方向上延伸的流体连通孔。 第一分离器和第二分离器朝向流体连通孔的内部设置,并且分别设置有具有相同形状并彼此堆叠的两个金属板。

    FUEL CELL STACK
    66.
    发明申请
    FUEL CELL STACK 有权
    燃料电池堆

    公开(公告)号:US20110159395A1

    公开(公告)日:2011-06-30

    申请号:US13000963

    申请日:2009-06-05

    IPC分类号: H01M8/24 H01M8/04

    摘要: There has been a problem that the cell units cannot bear the load exerted on the units while being stacked since a fuel cell stack including a refrigerant channel formed between cell units each having an even number of electrolyte/electrode structures (MEA) and metal separators which are alternated does not have any structure supporting the separators forming the refrigerant channel in a stacking direction. In order to solve the above problem, in each of a first power generating unit and a second power generating unit, projections formed at the buffer portions of the separators are disposed in the same positions in the stacking direction with the MEA interposed therebetween. Since between the first and second power generating units, the projections of the buffer portions are staggered, the projections of the first and second power generating units are thereby disposed in the same positions in the stacking direction.

    摘要翻译: 存在这样一个问题,即,由于包括在具有偶数个电解质/电极结构(MEA)的单电池单元和金属分离器之间形成的包括制冷剂通道的燃料电池堆叠,所以电池单元不能承受施加在单元上的负载, 不具有在层叠方向上支撑形成制冷剂流路的分离器的任何结构。 为了解决上述问题,在第一发电单元和第二发电单元中的每一个中,形成在隔板的缓冲部分的突起设置在层叠方向上的相同位置,并且MEA插入其间。 由于在第一和第二发电单元之间,缓冲部分的突起交错,因此第一和第二发电单元的突起在堆叠方向上位于相同的位置。

    Fuel cell
    68.
    发明授权
    Fuel cell 有权
    燃料电池

    公开(公告)号:US07572538B2

    公开(公告)日:2009-08-11

    申请号:US10656481

    申请日:2003-09-04

    IPC分类号: H01M2/08 H01M4/94 H01M8/02

    摘要: A fuel cell includes a membrane electrode assembly and first and second metal separators for sandwiching the membrane electrode assembly. In the membrane electrode assembly, a surface area of a gas diffusion layer is larger than a surface area of a gas diffusion layer. A seal member is provided at a position corresponding to an outer marginal region of the gas diffusion layer. The seal member includes a main seal inserted between a solid polymer electrolyte membrane and the first metal separator, and an a flow field wall inserted between the gas diffusion layer and the first metal separator for defining a part of an oxygen-containing gas flow field.

    摘要翻译: 燃料电池包括用于夹持膜电极组件的膜电极组件和第一和第二金属分离器。 在膜电极组件中,气体扩散层的表面积大于气体扩散层的表面积。 密封构件设置在与气体扩散层的外侧边缘区域对应的位置。 密封构件包括插入在固体聚合物电解质膜和第一金属隔板之间的主密封件,以及插入在气体扩散层和第一金属隔板之间以限定一部分含氧气体流场的流场壁。

    FUEL CELL
    69.
    发明申请
    FUEL CELL 有权
    燃料电池

    公开(公告)号:US20090075134A1

    公开(公告)日:2009-03-19

    申请号:US12299283

    申请日:2007-05-01

    IPC分类号: H01M8/04 H01M8/10

    摘要: A fuel cell stack comprising a second metal separator set to have an external dimension larger than a first metal separators, wherein the second metal separator comprises, formed integrally, a first seal member in contact with the peripheral edge of a first electrolyte membrane/electrode structure, a second seal member in contact with the peripheral edge of the first metal separator, and a third seal member in contact with the peripheral edge of an adjoining fourth metal separator. Since the first seal member, the second seal member and the third seal member are integrally formed on one surface of the second separator or one surface of the first separator, a seal-forming step can be carried out at one effort, simply and economically. In addition, use of a triple seal structure containing the first through the third seal members can favorably improve the sealing feature of reaction gas and minimize reaction gas leakage.

    摘要翻译: 一种燃料电池堆,包括设置为具有大于第一金属隔板的外部尺寸的第二金属隔板,其中所述第二金属隔板包括与第一电解质膜/电极结构的周边边缘接触的第一密封构件 与第一金属隔板的周缘接触的第二密封构件和与邻接的第四金属隔板的周缘接触的第三密封构件。 由于第一密封构件,第二密封构件和第三密封构件一体地形成在第二隔板的一个表面或第一隔板的一个表面上,因此可以简单且经济地一劳永逸地进行密封形成步骤。 此外,使用包含第一至第三密封构件的三重密封结构可有利地改善反应气体的密封特征并使反应气体泄漏最小化。