FUEL CELL
    11.
    发明申请
    FUEL CELL 有权
    燃料电池

    公开(公告)号:US20080292941A1

    公开(公告)日:2008-11-27

    申请号:US12126523

    申请日:2008-05-23

    IPC分类号: H01M2/00

    摘要: An oxygen-containing gas supply passage and an oxygen-containing gas discharge passage extend through a set of diagonal positions of a first metal separator, and a fuel gas supply passage and a fuel gas discharge passage extend through the other set of diagonal positions of the first metal separator. A fuel gas flow field is connected to the fuel gas supply passage through an inlet buffer at an upper position, and connected to the fuel gas discharge passage through an outlet buffer at a lower position. The inlet buffer includes a first inlet buffer area adjacent to the fuel gas supply passage and a second inlet buffer area adjacent to the fuel gas flow field. Grooves of the first inlet buffer area are deeper than grooves of the second inlet buffer area in the stacking direction.

    摘要翻译: 含氧气体供给通道和含氧气体排出通道延伸穿过第一金属分离器的一组对角位置,并且燃料气体供应通道和燃料气体排出通道延伸穿过另一组对角线位置 第一金属分离器。 燃料气体流场通过上部位置的入口缓冲器连接到燃料气体供应通道,并且通过下部位置处的出口缓冲器连接到燃料气体排出通道。 入口缓冲器包括与燃料气体供应通道相邻的第一入口缓冲区域和与燃料气体流场相邻的第二入口缓冲区域。 第一入口缓冲区的槽比层叠方向上的第二入口缓冲区的槽深。

    Fuel cell
    12.
    发明申请
    Fuel cell 有权
    燃料电池

    公开(公告)号:US20070009779A1

    公开(公告)日:2007-01-11

    申请号:US11378885

    申请日:2006-03-17

    IPC分类号: H01M8/04 H01M2/02 H01M2/14

    摘要: A fuel cell includes a membrane electrode assembly and an anode side metal separator and a cathode side metal separator sandwiching the membrane electrode assembly. An oxygen-containing gas flows in an oxygen-containing gas flow field in a horizontal direction. A coolant flows in a coolant flow field in a vertical direction. The coolant flow field is connected to coolant supply passages and coolant discharge passages. The opening of one of the coolant supply passages and the opening of one of the coolant discharge passages are smaller than those of the other coolant supply passages and the other coolant discharge passages in cross section, respectively. Thus, the flow rate of the coolant supplied to an area near outlets of the oxygen-containing gas flow field and the fuel gas flow field become smaller than the flow rate of the coolant supplied to the other area.

    摘要翻译: 燃料电池包括膜电极组件和阳极侧金属隔板以及夹着膜电极组件的阴极侧金属隔板。 含氧气体在水平方向的含氧气体流场中流动。 冷却剂沿着垂直方向在冷却剂流场中流动。 冷却剂流场连接到冷却剂供应通道和冷却剂排放通道。 一个冷却剂供给通道的开口和一个冷却剂排出通道的开口分别比其他冷却剂供应通道和另一个冷却剂排出通道的开口小。 因此,供给到含氧气体流场和燃料气体流场的出口附近的区域的冷却剂的流量变得比供给到另一个区域的冷却剂的流量小。

    Method of starting operation of solid polymer electrolyte fuel cell
    15.
    发明授权
    Method of starting operation of solid polymer electrolyte fuel cell 有权
    固体高分子电解质燃料电池的开始运行方法

    公开(公告)号:US08968950B2

    公开(公告)日:2015-03-03

    申请号:US13109739

    申请日:2011-05-17

    IPC分类号: H01M8/04

    摘要: A method of starting operation of a fuel cell stack includes the steps of performing gas replacement by supplying a fuel gas to a fuel gas flow field from a downstream side of the fuel gas flow field through a fuel gas discharge passage, and supplying an oxygen-containing gas to an oxygen-containing gas flow field from an upstream side of the oxygen-containing gas flow field through an oxygen-containing gas supply passage. After the step of performing gas replacement, normal power generation is carried out by supplying the fuel gas to the fuel gas flow field from an upstream side of the fuel gas flow field through a fuel gas supply passage, and supplying the oxygen-containing gas to the oxygen-containing gas flow field from the upstream side of the oxygen-containing gas flow field through the oxygen-containing gas supply passage.

    摘要翻译: 燃料电池堆的起动方法包括以下步骤:通过将燃料气体从燃料气体流场的下游侧通过燃料气体排出通路向燃料气体流场供给,进行气体置换, 将含氧气体从含氧气体流场的上游侧通过含氧气体供给通路供给到含氧气体流路。 在进行气体更换的步骤之后,通过将燃料气体从燃料气体流场的上游侧通过燃料气体供给通路供给到燃料气体流场,并将含氧气体供给到 来自含氧气体流场的上游侧的含氧气体流路通过含氧气体供给路径。

    Fuel cell system, method of stopping operation of the fuel cell system, and method of starting operation of the fuel cell system
    16.
    发明授权
    Fuel cell system, method of stopping operation of the fuel cell system, and method of starting operation of the fuel cell system 有权
    燃料电池系统,燃料电池系统的停止运转方法以及燃料电池系统的起动运转方法

    公开(公告)号:US08557459B2

    公开(公告)日:2013-10-15

    申请号:US12343078

    申请日:2008-12-23

    IPC分类号: H01M8/04

    摘要: A fuel cell system includes a fuel cell stack, an oxygen-containing gas supply apparatus, a fuel gas supply apparatus, a pressure reduction apparatus, and a dilution apparatus. The oxygen-containing gas supply apparatus supplies an oxygen-containing gas to the fuel cell stack. The oxygen-containing gas supply apparatus is capable of supplying the air to the fuel gas flow field at the time of stopping operation of the fuel cell system. The fuel gas supply apparatus supplies a fuel gas to the fuel cell stack. The pressure reduction apparatus suctions gases in the oxygen-containing gas flow field and the fuel gas flow field. The dilution apparatus dilutes the fuel gas suctioned by the pressure reduction apparatus using the air.

    摘要翻译: 燃料电池系统包括燃料电池堆,含氧气体供应装置,燃料气体供应装置,减压装置和稀释装置。 含氧气体供给装置向燃料电池堆供给含氧气体。 含氧气体供给装置能够在燃料电池系统的停止运转时向燃料气体流场供给空气。 燃料气体供给装置向燃料电池堆供给燃料气体。 减压装置吸入含氧气体流场和燃料气体流场中的气体。 稀释装置利用空气稀释由减压装置抽吸的燃料气体。

    Fuel cell
    17.
    发明授权
    Fuel cell 有权
    燃料电池

    公开(公告)号:US07951508B2

    公开(公告)日:2011-05-31

    申请号:US11021327

    申请日:2004-12-23

    IPC分类号: H01M4/64

    摘要: A fuel cell is formed by stacking a membrane electrode assembly and separators alternately. Each of the separators includes first and second metal plates. A coolant flow field is formed between the first and second metal plates. The coolant flow field is connected to inlet buffers and outlet buffers. Protrusions for limiting the flow of a coolant are provided at the inlet buffers and the outlet buffers on upper and lower opposite end positions of the coolant flow field.

    摘要翻译: 通过交替地堆叠膜电极组件和隔板来形成燃料电池。 每个分离器包括第一和第二金属板。 在第一和第二金属板之间形成冷却剂流场。 冷却剂流场连接到入口缓冲器和出口缓冲器。 用于限制冷却剂流动的突起在冷却剂流场的上下相对端位置处的入口缓冲器和出口缓冲器处提供。

    Fuel cell stack
    18.
    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。

    Apparatus for measuring current density of fuel cell
    19.
    发明授权
    Apparatus for measuring current density of fuel cell 失效
    用于测量燃料电池电流密度的装置

    公开(公告)号:US06949920B2

    公开(公告)日:2005-09-27

    申请号:US10694505

    申请日:2003-10-27

    CPC分类号: G01R31/3606 G01R19/08

    摘要: A fuel cell system includes a fuel cell. A current density measuring apparatus is provided on a cathode side of the fuel cell. The current density measuring apparatus includes a plurality of Hall elements provided at positions corresponding to measuring positions in an electrode surface. Each of the Hall element is attached to a ferrite core fitted to a pole of a sensor mounting plate. The ferrite core and the Hall element attached to the pole make up a current sensor.

    摘要翻译: 燃料电池系统包括燃料电池。 电流密度测量装置设置在燃料电池的阴极侧。 电流密度测量装置包括设置在与电极表面中的测量位置对应的位置处的多个霍尔元件。 每个霍尔元件连接到安装在传感器安装板极上的铁氧体磁芯上。 铁氧体磁芯和连接到电极的霍尔元件组成一个电流传感器。