Method of operating a solid polymer electrolyte fuel cell and aging apparatus
    1.
    发明授权
    Method of operating a solid polymer electrolyte fuel cell and aging apparatus 有权
    操作固体聚合物电解质燃料电池和老化装置的方法

    公开(公告)号:US08043753B2

    公开(公告)日:2011-10-25

    申请号:US12258070

    申请日:2008-10-24

    IPC分类号: H01M8/04 H01M8/10 H01M8/00

    摘要: In a first aging step, a plus electrode electric potential is applied to an anode of a fuel cell, and a minus electrode electric potential is applied to a cathode of the fuel cell. In this state, hydrogen pump operation is performed at maximum current density in use by supplying humidified hydrogen to the anode without supplying any oxygen-containing gas to the cathode. Thus, the hydrogen passes through a solid polymer electrolyte membrane toward the cathode. After the first aging step, in a second aging step, power generation of the fuel cell is performed at the maximum current density.

    摘要翻译: 在第一老化步骤中,将正电极电位施加到燃料电池的阳极,并且将负电极电位施加到燃料电池的阴极。 在该状态下,通过向阳极供给加湿氢而不向阴极供给任何含氧气体,在使用时以最大电流密度进行氢泵运转。 因此,氢通过固体聚合物电解质膜朝向阴极。 在第一老化步骤之后,在第二老化步骤中,以最大电流密度进行燃料电池的发电。

    METHOD OF OPERATING A SOLID POLYMER ELECTROLYTE FUEL CELL AND AGING APPARATUS
    2.
    发明申请
    METHOD OF OPERATING A SOLID POLYMER ELECTROLYTE FUEL CELL AND AGING APPARATUS 有权
    固体聚合物电解质燃料电池和老化装置的操作方法

    公开(公告)号:US20090110969A1

    公开(公告)日:2009-04-30

    申请号:US12258070

    申请日:2008-10-24

    IPC分类号: H01M8/10 H01M8/00

    摘要: In a first aging step, a plus electrode electric potential is applied to an anode of a fuel cell, and a minus electrode electric potential is applied to a cathode of the fuel cell. In this state, hydrogen pump operation is performed at maximum current density in use by supplying humidified hydrogen to the anode without supplying any oxygen-containing gas to the cathode. Thus, the hydrogen passes through a solid polymer electrolyte membrane toward the cathode. After the first aging step, in a second aging step, power generation of the fuel cell is performed at the maximum current density.

    摘要翻译: 在第一老化步骤中,将正电极电位施加到燃料电池的阳极,并且将负电极电位施加到燃料电池的阴极。 在该状态下,通过向阳极供给加湿氢而不向阴极供给任何含氧气体,在使用时以最大电流密度进行氢泵运转。 因此,氢通过固体聚合物电解质膜朝向阴极。 在第一老化步骤之后,在第二老化步骤中,以最大电流密度进行燃料电池的发电。

    Fuel cell system
    3.
    发明授权
    Fuel cell system 失效
    燃料电池系统

    公开(公告)号:US07348083B2

    公开(公告)日:2008-03-25

    申请号:US10800168

    申请日:2004-03-12

    IPC分类号: H01M8/04 H01M2/00 H01M2/02

    CPC分类号: H01M8/04156 H01M8/04141

    摘要: A humidity sensor is disposed in a circulation passage as a passage of a hydrogen gas supplied to an anode of a fuel cell stack. A load current setting unit determines a level of electrical current supplied to a load. A flow rate controller controls a compressor based on the humidity detected by the humidity sensor and the load current determined by the load current setting unit to regulate a flow rate of the air supplied to a cathode of the fuel cell stack for maintaining the humidity of the hydrogen gas within a predetermined range less than 100%. The fuel cell stack generates the load current efficiently without discharging the hydrogen gas to the outside.

    摘要翻译: 湿度传感器设置在循环通道中,作为供应到燃料电池堆的阳极的氢气的通道。 负载电流设定单元确定提供给负载的电流水平。 流量控制器基于由湿度传感器检测到的湿度和由负载电流设定单元确定的负载电流来控制压缩机,以调节供应到燃料电池堆的阴极的空气的流量,以保持 在小于100%的预定范围内的氢气。 燃料电池堆有效地产生负载电流而不将氢气排出到外部。

    FUEL CELL
    5.
    发明申请
    FUEL CELL 有权
    燃料电池

    公开(公告)号:US20090004535A1

    公开(公告)日:2009-01-01

    申请号:US12146850

    申请日:2008-06-26

    IPC分类号: H01M2/00

    摘要: Each of power generation units of a fuel cell according to the present invention is formed by stacking a first metal separator, a first membrane electrode assembly, a second metal separator, a second membrane electrode assembly, and a third metal separator together. The power generation unit has therein a first oxygen-containing gas flow field, a first fuel gas flow field, a second oxygen-containing gas flow field, and a second fuel gas flow field. The number of flow grooves in the first oxygen-containing gas flow field is different from that of flow grooves in the second oxygen-containing gas flow field, and the number of flow grooves in the first fuel gas flow field is different from that of flow grooves in the second fuel gas flow field.

    摘要翻译: 本发明的燃料电池的发电单元,通过将第一金属隔板,第一膜电极接合体,第二金属隔板,第二膜电极接合体和第三金属隔板结合在一起而形成。 发电单元中具有第一含氧气体流场,第一燃料气体流场,第二含氧气体流场和第二燃料气体流场。 第一含氧气体流场中的流槽数与第二含氧气体流场中的流槽的数量不同,第一燃料气体流场中的流槽数与流量的不同 第二燃料气体流场中的凹槽。

    Fuel cell
    7.
    发明授权
    Fuel cell 有权
    燃料电池

    公开(公告)号:US08034506B2

    公开(公告)日:2011-10-11

    申请号:US11712738

    申请日:2007-03-01

    IPC分类号: H01M2/38

    摘要: A fuel gas flow field is formed on a surface of a rectangular first metal separator. The fuel gas flow field includes flow grooves extending in the direction of gravity. An outlet buffer is provided at a lower end of the fuel gas flow field. The outlet buffer includes an inclined surface inclined toward a fuel gas discharge passage. The fuel gas discharge passage is positioned below the outlet buffer. Outlet channel grooves are formed by ridges provided between the fuel gas discharge passage and the outlet buffer. Lower ends of the ridges are arranged in a zigzag pattern.

    摘要翻译: 燃料气体流场形成在矩形第一金属分离器的表面上。 燃料气体流场包括在重力方向上延伸的流动槽。 出口缓冲器设置在燃料气体流场的下端。 出口缓冲器包括朝向燃料气体排出通道倾斜的倾斜表面。 燃料气体排出通道位于出口缓冲器下方。 出口通道槽由设置在燃料气体排出通道和出口缓冲器之间的脊部形成。 脊的下端以锯齿形图案布置。

    Fuel cell
    8.
    发明申请
    Fuel cell 有权
    燃料电池

    公开(公告)号:US20070207372A1

    公开(公告)日:2007-09-06

    申请号:US11712738

    申请日:2007-03-01

    IPC分类号: H01M8/02 H01M8/10

    摘要: A fuel gas flow field is formed on a surface of a rectangular first metal separator. The fuel gas flow field includes flow grooves extending in the direction of gravity. An outlet buffer is provided at a lower end of the fuel gas flow field. The outlet buffer includes an inclined surface inclined toward a fuel gas discharge passage. The fuel gas discharge passage is positioned below the outlet buffer. Outlet channel grooves are formed by ridges provided between the fuel gas discharge passage and the outlet buffer. Lower ends of the ridges are arranged in a zigzag pattern.

    摘要翻译: 燃料气体流场形成在矩形第一金属分离器的表面上。 燃料气体流场包括在重力方向上延伸的流动槽。 出口缓冲器设置在燃料气体流场的下端。 出口缓冲器包括朝向燃料气体排出通道倾斜的倾斜表面。 燃料气体排出通道位于出口缓冲器下方。 出口通道槽由设置在燃料气体排出通道和出口缓冲器之间的脊部形成。 脊的下端以锯齿形图案布置。

    Fuel cell stack having gas discharge passage and drainage passage joined at one end of the stack
    9.
    发明申请
    Fuel cell stack having gas discharge passage and drainage passage joined at one end of the stack 有权
    具有气体排出通道和排放通道的燃料电池堆叠在堆叠的一端连接

    公开(公告)号:US20070111083A1

    公开(公告)日:2007-05-17

    申请号:US11599925

    申请日:2006-11-14

    IPC分类号: H01M8/24 H01M8/10

    摘要: A fuel cell stack includes stacked unit fuel cells provided between end holding members, each unit fuel cell having a membrane electrode assembly including an anode and a cathode. A pair of separators respectively contact the anode and the cathode, and respectively form reaction gas passages between one separator and the anode, and between the other separator and the cathode. For each reaction gas passage, a gas supply passage and a gas discharge passage are formed through the unit fuel cells and one end holding member so that they communicate with the reaction gas passage of each unit fuel cell, and a drainage passage is also formed through the unit fuel cells and one end holding member. An end of the drainage passage and an end of the gas discharge passage on the side of the other end holding member are joined to each other.

    摘要翻译: 燃料电池堆包括设置在端部保持构件之间的堆叠单元燃料电池,每个单位燃料电池具有包括阳极和阴极的膜电极组件。 一对分离器分别接触阳极和阴极,分别在一个分离器和阳极之间以及另一个分离器和阴极之间形成反应气体通道。 对于每个反应气体通道,通过单元燃料电池和一端保持构件形成气体供给通道和气体排出通道,使得它们与每个单位燃料电池的反应气体通道连通,并且还形成排水通道 单元燃料电池和一端保持构件。 排水通道的一端和排气通道在另一端保持构件一侧的端部彼此接合。