利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

17 条记录 (耗时 0.049 秒)

    Apparatus for improving the cold starting capability of an electrochemical fuel cell
    4.
    发明申请
    Apparatus for improving the cold starting capability of an electrochemical fuel cell 有权
    用于提高电化学燃料电池的冷启动能力的装置

    公开(公告)号：US20050112418A1

    公开(公告)日：2005-05-26

    申请号：US10833228

    申请日：2004-04-26

    申请人： Joy Roberts ,  Jean St-Pierre ,  Marian van der Geest ,  Abderrahmane Atbi ,  Nicholas Fletcher

    发明人： Joy Roberts ,  Jean St-Pierre ,  Marian van der Geest ,  Abderrahmane Atbi ,  Nicholas Fletcher

    IPC分类号： H01M8/04 ,  H01M8/00

    CPC分类号： H01M8/04225 ,  H01M8/04007 ,  H01M8/04029 ,  H01M8/04119 ,  H01M8/04156 ,  H01M8/04223 ,  H01M8/241 ,  H01M8/2457 ,  H01M2300/0082

    摘要： An electric power generation system has elements that improve the cold start capability and freeze tolerance of a constituent fuel cell stack cooperate to reduce the amount of water remaining within the passages of the stack. The system includes a purge system that is connectable to the oxidant supply, fuel supply and/or coolant passages upstream of the stack. When the stack is shut down, the stack is disconnected from an external circuit, and purge fluid is transmitted by the purge system through the stack before the stack falls below the freezing point of water. In systems where fuel and/or oxidant streams are humidified prior to entry into the stack, a humidifier bypass system may be provided in place of the purge system. The humidifier bypass system transmits reactant fluid to the stack in fluid isolation from the humidifier, so that the inlet reactant streams are unhumidified.

    摘要翻译： 发电系统具有提高组分燃料电池堆的冷启动能力和冷冻公差的元件，其协作以减少堆叠通道内剩余的水量。 该系统包括可连接到堆叠上游的氧化剂供应源，燃料供应源和/或冷却剂通道的净化系统。 当堆叠关闭时，堆叠与外部电路断开连接，并且在堆叠降低到水的冰点之前，净化系统通过堆叠传输净化流体。 在燃料和/或氧化剂流在进入堆叠之前被加湿的系统中，可以提供加湿器旁路系统来代替净化系统。 加湿器旁路系统将反应物流体与加湿器以流体隔离的方式将反应物流体传送到堆叠中，使得入口反应物流不加湿。

    Method and apparatus for controlling the temperature within an electrochemical fuel cell
    7.
    发明授权
    Method and apparatus for controlling the temperature within an electrochemical fuel cell 失效
    用于控制电化学燃料电池内的温度的方法和装置

    公开(公告)号：US06682839B2

    公开(公告)日：2004-01-27

    申请号：US09848531

    申请日：2001-05-03

    申请人： David P. Wilkinson ,  Bien Hung Chiem ,  Joy A. Roberts ,  Jean St-Pierre ,  Jürgen Stumper ,  Joerg Zimmermann

    发明人： David P. Wilkinson ,  Bien Hung Chiem ,  Joy A. Roberts ,  Jean St-Pierre ,  Jürgen Stumper ,  Joerg Zimmermann

    IPC分类号： H01M804

    CPC分类号： H01M8/04029 ,  H01M8/0202 ,  H01M8/04097 ,  H01M8/04119 ,  H01M8/04156 ,  H01M2300/0082

    摘要： A method of controlling the temperature within an electrochemical fuel cell stack comprises introducing a reactant fluid stream comprising both a heat transfer liquid and a reactant into a fuel cell assembly such that the reactant fluid stream contacts an electrode. The heat transfer liquid is other than water. Preferably, the method further comprises recirculating heat transfer liquid which is in the reactant exhaust stream, typically via a heat exchanger, and re-introducing it into the fuel cell assembly in the reactant fluid stream. The recirculated heat transfer liquid may be directed to a reservoir which in turn supplies heat transfer liquid to the reactant fluid stream as it is needed. In a further embodiment, the method may comprise using the heat transfer liquid to heat a fuel cell stack to a desired operating temperature rather than cooling the stack.

    摘要翻译： 控制电化学燃料电池堆内的温度的方法包括将包含传热液体和反应物的反应物流体流引入燃料电池组件，使得反应物流体流接触电极。 传热液体不是水。 优选地，该方法还包括通常通过热交换器再循环在反应物排气流中的传热液体，并将其重新引入到反应物流体流中的燃料电池组件中。 再循环的传热液体可以被引导到储存器，储存器又根据需要将热传递液体提供给反应物流体流。 在另一个实施例中，该方法可以包括使用传热液体将燃料电池堆加热到期望的操作温度，而不是冷却堆叠。

    Method and device for improved catalytic activity in the purification of fluids
    10.
    发明授权
    Method and device for improved catalytic activity in the purification of fluids 失效
    用于改善流体净化中催化活性的方法和装置

    公开(公告)号：US06896792B2

    公开(公告)日：2005-05-24

    申请号：US10167063

    申请日：2002-06-11

    申请人： Jean St-Pierre ,  David P. Wilkinson ,  Stephen A. Campbell

    发明人： Jean St-Pierre ,  David P. Wilkinson ,  Stephen A. Campbell

    IPC分类号： B01J23/42 ,  B01J38/00 ,  C25B3/02 ,  H01M8/06 ,  C25D17/00

    CPC分类号： H01M8/0662

    摘要： The activity of catalysts used in promoting the oxidation of certain oxidizable species in fluids can be enhanced via electrochemical methods, e.g., NEMCA. In particular, the activity of catalysts used in the selective oxidation of carbon monoxide can be enhanced. A purification system that exploits this effect is useful in purifying reformate supplied as fuel to a solid polymer electrolyte fuel cell stack. The purification system comprises an electrolytic cell with fluid diffusion electrodes. The activity of catalyst incorporated in the cell anode is enhanced.

    摘要翻译： 用于促进流体中某些可氧化物质氧化的催化剂的活性可以通过电化学方法例如NEMCA来增强。 特别地，可以提高用于选择性氧化一氧化碳的催化剂的活性。 利用这种效果的净化系统可用于将作为燃料提供的重整产物纯化成固体聚合物电解质燃料电池堆。 净化系统包括具有流体扩散电极的电解池。 加入到电池阳极中的催化剂的活性得到增强。