FUEL CELL STACK ASSEMBLY SEAL
    1.
    发明申请
    FUEL CELL STACK ASSEMBLY SEAL 审中-公开
    燃油电池堆组件密封

    公开(公告)号:US20110318666A1

    公开(公告)日:2011-12-29

    申请号:US13126054

    申请日:2008-10-22

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

    摘要: A fuel cell is disclosed that includes an electrode assembly arranged between a cathode and an anode. The anode and cathode have lateral surfaces adjoining lateral surface of the electrode assembly and respectively include fuel and oxidant flow fields. Interfacial seals are not arranged between the lateral surfaces. Instead, a sealant is applied to the anode, the cathode and the electrode assembly to fluidly separate the fuel and oxidant flow fields. In one example, the adjoining lateral surfaces are in abutting engagement with one another. The sealant is applied in a liquid, uncured state to perimeter surfaces of the electrode assembly, the anode and the cathode that surround the lateral surfaces.

    摘要翻译: 公开了一种燃料电池,其包括布置在阴极和阳极之间的电极组件。 阳极和阴极具有邻接电极组件的侧表面的侧表面,并且分别包括燃料和氧化剂流场。 界面密封件不设置在侧面之间。 相反,将密封剂施加到阳极,阴极和电极组件以流体地分离燃料和氧化剂流场。 在一个示例中,邻接的侧表面彼此邻接。 将密封剂以液体未固化状态施加到围绕侧表面的电极组件,阳极和阴极的周边表面。

    Fuel cell voltage control
    2.
    发明授权
    Fuel cell voltage control 有权
    燃料电池电压控制

    公开(公告)号:US07041405B2

    公开(公告)日:2006-05-09

    申请号:US10681493

    申请日:2003-10-07

    IPC分类号: H01M8/04

    摘要: An auxiliary load (148) for a fuel cell stack (102) is alternatively connected and disconnected from the fuel cell external circuit (177, 178) by a switch (200) in response to a switch control (201), repetitively, during startup and shutdown. The switch may be an insulated gate bipolar transistor (208) which is turned on and off by hunting between an upper limit voltage (207) and a lower limit voltage (208), which may be performed by compare circuits (205, 206), by the controller (202), or by commercially available voltage responsive hysteresis switches. Schedules of duty cycle as a function of cell stack voltage for startup (212) and shutdown (213) control a pulse width modulator (215) which operates the switch. Controls (229, 231) may limit the modulation so that the auxiliary load does not overheat, in response to temperature (221) of the load or a voltage/power model (235). The auxiliary load may comprise a heater in a water accumulator (247), an air intake (257) or an enthalpy recovery device (262).

    摘要翻译: 用于燃料电池堆(102)的辅助负载(148)在启动期间重复地响应于开关控制(201)由开关(200)交替地连接和断开与燃料电池外部电路(177,178)的连接 和关机。 开关可以是绝缘栅双极晶体管(208),其通过在比较电路(205,206)之间的上限电压(207)和下限电压(208)之间的摆幅来接通和断开, 由控制器(202)或商业上可获得的电压响应迟滞开关。 作为启动(212)和停机(213)的电池堆电压的函数的占空比的调度控制操作开关的脉宽调制器(215)。 响应于负载的温度(221)或电压/功率模型(235),控制(229,231)可以限制调制以使辅助负载不过热。 辅助负载可以包括在蓄水器(247),进气口(257)或焓回收装置(262)中的加热器。

    Tailored Heat Transfer Characteristic of Fuel Cell Coolers
    3.
    发明申请
    Tailored Heat Transfer Characteristic of Fuel Cell Coolers 审中-公开
    燃料电池冷却器定制传热特性

    公开(公告)号:US20100119885A1

    公开(公告)日:2010-05-13

    申请号:US12452698

    申请日:2007-07-25

    申请人: David D. Jayne

    发明人: David D. Jayne

    IPC分类号: H01M8/00 H01M8/04

    摘要: The thermal profile of one or more fuel cells (10) cooled by coolant flowing in coolant flow passageways (30, 31, 33, 34, 37-41, 45-50) is tailored by providing selected material (65, 68) adjacent a portion (33b) of the coolant passageway; the selected material has a different thermal transfer characteristic than material surrounding other portions of the coolant passageway. The material may be more insulative or more conductive. The material may be wrapping (65), such as shrink wrap, about a coolant tube, or it may be altered material (68) in a molding material.

    摘要翻译: 通过在冷却剂流动通道(30,31,33,34,37-41,45-50)中流动的冷却剂冷却的一个或多个燃料电池(10)的热分布通过提供邻近的选定材料(65,68)而被定制 冷却剂通道的部分(33b); 所选择的材料具有与围绕冷却剂通道的其它部分的材料不同的热转印特性。 该材料可以更绝缘或更具导电性。 材料可以围绕冷却剂管包裹(例如收缩包装)(65),或者它可以是成型材料中的改变的材料(68)。