Gas crossover barrier with electrochemical conversion cell membrane
    1.
    发明申请
    Gas crossover barrier with electrochemical conversion cell membrane 审中-公开
    气体交换屏障与电化学转化细胞膜

    公开(公告)号:US20070042256A1

    公开(公告)日:2007-02-22

    申请号:US11206582

    申请日:2005-08-18

    申请人: Seth Valentine

    发明人: Seth Valentine

    IPC分类号: H01M2/08 H01M8/10

    摘要: A device is provided comprising at least one electrochemical conversion cell configured to convert first and second reactants to electrical energy. The electrochemical conversion cell comprises a membrane electrode assembly defining a partition between first and second reactant supplies. The membrane electrode assembly comprises a polymer electrolyte membrane configured to conduct protons. The polymer electrolyte membrane defines a peripheral edge portion along the perimeter of the membrane and an interior region bounded by the peripheral edge portion. A gas crossover barrier material is bonded to the polymer electrolyte membrane along a majority of the peripheral edge portion. A process of bonding the barrier material to the membrane is also provided.

    摘要翻译: 提供了一种装置,其包括至少一个电化学转换单元,其被配置为将第一和第二反应物转换成电能。 电化学转化电池包括限定第一和第二反应物供应之间的隔板的膜电极组件。 膜电极组件包括构造成导电质子的聚合物电解质膜。 聚合物电解质膜限定沿着膜的周边的周边边缘部分和由周边边缘部分限定的内部区域。 气体交叉阻挡材料沿着周边边缘部分的大部分结合到聚合物电解质膜上。 还提供了将阻挡材料粘合到膜的过程。

    Reactant management of a wet end cell in a fuel cell stack
    2.
    发明申请
    Reactant management of a wet end cell in a fuel cell stack 审中-公开
    燃料电池堆中的湿端电池的反应物管理

    公开(公告)号:US20060263664A1

    公开(公告)日:2006-11-23

    申请号:US11132984

    申请日:2005-05-19

    IPC分类号: H01M8/24 H01M8/02

    摘要: In at least certain embodiments, the present invention relates to a fuel cell stack comprising a fuel cell assembly having opposite first and second ends, a wet end fuel cell adjacent the first end, a dry end fuel cell adjacent the second end, and a plurality of repeating fuel cells disposed between the wet end and dry end fuel cells. In at least certain embodiments, the wet end fuel cell comprises a unipolar plate and the repeating fuel cells each comprise one-half of each adjacent bipolar plate. In at least certain embodiments, the unipolar plate has a first oxidant rate, and at least one of the bipolar plates has a second oxidant rate, with the first oxidant rate being less than the second oxidant rate.

    摘要翻译: 在至少某些实施例中,本发明涉及一种燃料电池堆,其包括具有相对的第一和第二端的燃料电池组件,与第一端相邻的湿端燃料电池,与第二端相邻的干端燃料电池,以及多个 重复设置在湿端和干端燃料电池之间的燃料电池。 在至少某些实施例中,湿端燃料电池包括单极板,并且重复燃料电池各自包括每个相邻双极板的一半。 在至少某些实施方案中,单极板具有第一氧化剂速率,并且至少一个双极板具有第二氧化剂速率,其中第一氧化剂速率小于第二氧化剂速率。

    Fuel cell stack including bypass
    4.
    发明授权
    Fuel cell stack including bypass 有权
    燃料电池堆包括旁路

    公开(公告)号:US07879503B2

    公开(公告)日:2011-02-01

    申请号:US11207513

    申请日:2005-08-19

    摘要: A fuel cell stack including a bypass is provided. The fuel cell stack includes a plurality of electricity generating cells in the known manner. A bypass is included for reducing the water entering the electricity generating cells of the fuel cell stack. The bypass may comprise at least one bypass cell disposed adjacent the first electricity generating cell in the stack. The bypass cell comprises a pair of separator plates defining an anode side and a cathode side. The bypass cell includes a conductive spacer comprising gas diffusion media disposed between the pair of separator plates. The bypass cell preferably blocks the cathode port on the separator plate. In this manner, the cell is inactive and does not produce electricity. The anode port of the cell remains open and an anode feed flows through the bypass to reduce water provided to the first electricity-generating cell. Alternatively or additionally, the cathode port remains open. Further the bypass may be placed before the cell stack itself.

    摘要翻译: 提供了包括旁路的燃料电池堆。 燃料电池堆以已知的方式包括多个发电单元。 包括旁路以减少进入燃料电池堆的发电单元的水。 旁路可以包括与堆叠中的第一发电单元相邻设置的至少一个旁路单元。 旁路电池包括限定阳极侧和阴极侧的一对隔板。 旁路电池包括导电间隔件,其包括设置在该对隔板之间的气体扩散介质。 旁路电池优选地阻挡隔板上的阴极端口。 以这种方式,电池是不活动的并且不产生电力。 电池的阳极端口保持打开,并且阳极进料流过旁路以减少提供给第一发电池的水。 或者或另外,阴极端口保持打开。 此外,旁路可以放置在电池堆本身之前。

    PEM fuel cell assembly formed of modular sub-assemblies
    5.
    发明申请
    PEM fuel cell assembly formed of modular sub-assemblies 失效
    由模块化子组件形成的PEM燃料电池组件

    公开(公告)号:US20050112442A1

    公开(公告)日:2005-05-26

    申请号:US10723648

    申请日:2003-11-26

    IPC分类号: H01M2/08 H01M8/02 H01M8/24

    摘要: A method for forming a fuel cell assembly including the pre-final-assembly step of forming a plurality of fuel cell sub-assembly modules, each module including a predetermined number of individual fuel cell repeating units, for example, ten. Each module may be leak and performance tested and certified prior to inclusion in the final fuel cell stack, thus limiting potential rework to only an individual module and only before assembly of the final stack. Preferably, each module is assembled on an assembly fixture having alignment rods, using a combination of resilient gasketing and RTV to seal between the elements. The assembled module is then placed under compression while the silicone is cured.

    摘要翻译: 一种用于形成燃料电池组件的方法,包括形成多个燃料电池子组件模块的预最终组装步骤,每个模块包括预定数量的单个燃料电池重复单元,例如十个。 在包含在最终燃料电池堆中之前,每个模块都可以进行泄漏和性能测试和认证,从而将潜在的返修仅限于单独的模块,并且仅在组装最终堆叠之前才能进行。 优选地,每个模块组装在具有对准杆的组装夹具上,使用弹性垫圈和RTV的组合来密封元件之间。 然后将组装好的模块放置在压缩状态,同时固化硅树脂。

    Fuel cell stack including bypass
    7.
    发明申请
    Fuel cell stack including bypass 有权
    燃料电池堆包括旁路

    公开(公告)号:US20070042258A1

    公开(公告)日:2007-02-22

    申请号:US11207513

    申请日:2005-08-19

    IPC分类号: H01M8/24 H01M8/10 H01M8/04

    摘要: A fuel cell stack including a bypass is provided. The fuel cell stack includes a plurality of electricity generating cells in the known manner. A bypass is included for reducing the water entering the electricity generating cells of the fuel cell stack. The bypass may comprise at least one bypass cell disposed adjacent the first electricity generating cell in the stack. The bypass cell comprises a pair of separator plates defining an anode side and a cathode side. The bypass cell includes a conductive spacer comprising gas diffusion media disposed between the pair of separator plates. The bypass cell preferably blocks the cathode port on the separator plate. In this manner, the cell is inactive and does not produce electricity. The anode port of the cell remains open and an anode feed flows through the bypass to reduce water provided to the first electricity-generating cell. Alternatively or additionally, the cathode port remains open. Further the bypass may be placed before the cell stack itself.

    摘要翻译: 提供了包括旁路的燃料电池堆。 燃料电池堆以已知的方式包括多个发电单元。 包括旁路以减少进入燃料电池堆的发电单元的水。 旁路可以包括与堆叠中的第一发电单元相邻设置的至少一个旁路单元。 旁路电池包括限定阳极侧和阴极侧的一对隔板。 旁路电池包括导电间隔件,其包括设置在该对隔板之间的气体扩散介质。 旁路电池优选地阻挡隔板上的阴极端口。 以这种方式,电池是不活动的并且不产生电力。 电池的阳极端口保持打开,并且阳极进料流过旁路以减少提供给第一发电池的水。 或者或另外,阴极端口保持打开。 此外,旁路可以放置在电池堆本身之前。

    Temperature management of an end cell in a fuel cell stack
    8.
    发明申请
    Temperature management of an end cell in a fuel cell stack 审中-公开
    燃料电池堆中的端电池的温度管理

    公开(公告)号:US20060263663A1

    公开(公告)日:2006-11-23

    申请号:US11132983

    申请日:2005-05-19

    IPC分类号: H01M8/24 H01M8/04

    摘要: In at least certain embodiments, the present invention relates to a fuel cell stack comprising a fuel cell assembly having opposite first and second ends, a wet end fuel cell adjacent the first end, a dry end fuel cell adjacent the second end, and a plurality of repeating fuel cells disposed between the wet end and dry end fuel cells. In at least certain embodiments, the wet end fuel cell comprises a unipolar plate and the repeating fuel cells each comprise one-half of each adjacent bipolar plate. In at least certain embodiments, the unipolar plate has a first coolant rate, and at least one of the bipolar plates has a second coolant rate, with the first coolant rate being less than the second coolant rate.

    摘要翻译: 在至少某些实施例中,本发明涉及一种燃料电池堆,其包括具有相对的第一和第二端的燃料电池组件,与第一端相邻的湿端燃料电池,与第二端相邻的干端燃料电池,以及多个 重复设置在湿端和干端燃料电池之间的燃料电池。 在至少某些实施例中,湿端燃料电池包括单极板,并且重复燃料电池各自包括每个相邻双极板的一半。 在至少某些实施例中,单极板具有第一冷却剂速率,并且至少一个双极板具有第二冷却剂速率,其中第一冷却剂速率小于第二冷却剂速率。