Fuel cell stack having grommet which covers each edge of communicating passages formed in terminal plate
    1.
    发明授权
    Fuel cell stack having grommet which covers each edge of communicating passages formed in terminal plate 失效
    燃料电池堆,其具有覆盖端子板中形成的连通通道的每个边缘的索环

    公开(公告)号:US06846590B2

    公开(公告)日:2005-01-25

    申请号:US10042063

    申请日:2001-10-18

    摘要: A fuel cell stack is disclosed, so as to prevent the corrosion of the power output terminal plate due to coolant and the occurrence of electric short circuits through the coolant, and to improve the flexibility of selection of the coolant. The fuel cell stack has unit fuel cells, each comprising an anode, a cathode, and an electrolyte which is placed between the anode and the cathode, wherein the unit fuel cells are stacked via separators. A pair of power output terminal plates are provided, one attached to each end face of the stacked unit fuel cells. A coolant supply and drainage passage and a gas supply and exhaust passage are formed through the stacked unit fuel cells and the power output terminal plates in the stacking direction, and the edge of each passage through the power output terminal plates is covered with a grommet having an insulating capability.

    摘要翻译: 公开了一种燃料电池堆,以防止由于冷却剂而导致的电力输出端子板的腐蚀和通过冷却剂的电气短路的发生,并且提高了选择冷却剂的灵活性。 燃料电池堆具有单元燃料电池,每个燃料电池包括放置在阳极和阴极之间的阳极,阴极和电解质,其中单元燃料电池通过隔板堆叠。 提供一对电力输出端子板,一个连接到堆叠单元燃料电池的每个端面。 在层叠方向上通过堆叠单元燃料电池和动力输出端子板形成冷却剂供给排出通路和气体供给排出通路,并且通过动力输出端子板的每个通路的边缘覆盖有具有 绝缘能力。

    Fuel cell
    2.
    发明授权
    Fuel cell 有权
    燃料电池

    公开(公告)号:US06833210B2

    公开(公告)日:2004-12-21

    申请号:US10287966

    申请日:2002-11-04

    IPC分类号: H01M804

    摘要: A fuel cell that is small and light has separators having communication ports for reaction gases and cooling medium that are provided on an outer side of gas sealing members so as to penetrate each of the separators, and communication paths that detour around the gas sealing members in the thickness direction of the separators and connect the reaction gas communication ports with reaction gas flow passages. Furthermore, support members are provided to support the portions of the separators at which the gas sealing members and the cooling surface sealing member are disposed so as to be offset with respect to each other as viewed in the stacking direction.

    摘要翻译: 小而轻的燃料电池具有分离器,其具有用于反应气体的连通口和设置在气密封部件的外侧以便穿过每个分离器的冷却介质,以及围绕气密封部件绕过的连通路径 分离器的厚度方向,并将反应气体连通口与反应气体流路连接。 此外,支撑构件被设置成支撑分离器的气体密封构件和冷却表面密封构件设置在从堆叠方向观察时相对于彼此偏移的部分。

    Fuel cell stack
    7.
    发明授权

    公开(公告)号:US07144647B2

    公开(公告)日:2006-12-05

    申请号:US09952235

    申请日:2001-09-12

    摘要: A fuel cell stack capable of giving improved impact resistance and vibration resistance without causing the space occupied by the fuel cell stack to be increased. In a fuel cell stack for mounting in a vehicle in which a plurality of fuel cell units, each of which is formed by interposing a solid polymer electrolyte membrane between an anode electrode and a cathode electrode, are stacked in a horizontal direction with separators placed between each, mounting members used for installation are provided at backup plates that are outside fastening structure portions that are provided at both ends along the direction in which the fuel cell units are stacked, and an intermediate supporting member used for installation is additionally provided at an intermediate portion along the direction in which the fuel cell units are stacked.

    Fuel cell
    8.
    发明授权
    Fuel cell 有权
    燃料电池

    公开(公告)号:US09214682B2

    公开(公告)日:2015-12-15

    申请号:US12623829

    申请日:2009-11-23

    IPC分类号: H01M8/02 H01M8/10

    摘要: A fuel cell is formed by sandwiching a membrane electrode assembly between a first separator and a second separator. A fuel gas flow field is formed in the second separator. An inlet buffer is connected to the inlet of the fuel gas flow field, and an outlet buffer is connected to an outlet of the fuel gas flow field. The inlet buffer is deeper than the outlet buffer. Therefore, the pressure loss in the inlet buffer is smaller than the pressure loss in the outlet buffer.

    摘要翻译: 通过将膜电极组件夹在第一分离器和第二分离器之间形成燃料电池。 燃料气体流场形成在第二分离器中。 入口缓冲器连接到燃料气体流场的入口,出口缓冲器连接到燃料气体流场的出口。 入口缓冲器比出口缓冲器更深。 因此,入口缓冲器中的压力损失小于出口缓冲器中的压力损失。

    Fuel cell
    9.
    发明授权

    公开(公告)号:US08475972B2

    公开(公告)日:2013-07-02

    申请号:US12299283

    申请日:2007-05-01

    IPC分类号: H01M2/08 H01M2/38

    摘要: A fuel cell stack comprising a second metal separator set to have an external dimension larger than a first metal separator, 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.

    Fuel cell stack
    10.
    发明授权
    Fuel cell stack 有权
    燃料电池堆

    公开(公告)号:US08012639B2

    公开(公告)日:2011-09-06

    申请号:US11281720

    申请日:2005-11-16

    IPC分类号: H01M8/04 H01M8/24

    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。