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    Fuel cell stack having an improved current collector and insulator
    1.
    发明申请
    Fuel cell stack having an improved current collector and insulator 审中-公开
    具有改进的集电器和绝缘体的燃料电池堆

    公开(公告)号：US20050084732A1

    公开(公告)日：2005-04-21

    申请号：US10687242

    申请日：2003-10-16

    申请人： Richard Breault ,  Ryan Balliet ,  Robert Fredley ,  Patrick Hagans

    发明人： Richard Breault ,  Ryan Balliet ,  Robert Fredley ,  Patrick Hagans

    IPC分类号： H01M20060101 ,  H01M8/02 ,  H01M8/04 ,  H01M8/24

    CPC分类号： H01M8/0247 ,  H01M8/0206 ,  H01M8/04067 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04253 ,  H01M8/04302 ,  H01M8/0637 ,  H01M8/241 ,  H01M8/2465 ,  Y02E60/566

    摘要： A fuel cell stack (10) includes a reaction portion (20) having an end cell (12) secured adjacent to a current collector (30). The collector (30) has a sensible heat no greater than a sensible heat of the end cell (12) and an electrical resistivity no greater than 100 micro-ohms centimeters. An insulator (40) is secured adjacent the collector (30) and has a thermal conductivity that is no greater than 0.500 Watts per meter per degree Kelvin. Because of the low sensible heat of the current collector (30) and low rate of heat transfer of the insulator (40), heat does not readily leave the end cell (12) resulting in a rapid heating of the end cell (12), thereby avoiding freezing and accumulation of product water in the end cell (12) during start up in subfreezing conditions.

    摘要翻译： 燃料电池堆（10）包括具有邻近集电器（30）固定的端电池（12）的反应部分（20）。 收集器（30）具有不大于端电池（12）的显热的显热，并且电阻率不大于100微欧厘米。 绝缘体（40）固定在收集器（30）附近，并且具有不大于0.500瓦/米每度开尔文的导热系数。 由于集电体（30）的显热低，绝缘体（40）的传热速度低，所以热不容易离开端电池（12），导致端电池（12）的快速加热， 从而避免在冷冻条件下启动期间终端电池（12）中的产品水的冷冻和积聚。

    Non-circulating coolant PEM fuel cell power plant assembly with low thermal mass
    2.
    发明申请
    Non-circulating coolant PEM fuel cell power plant assembly with low thermal mass 有权
    非循环冷却剂PEM燃料电池发电厂组件具有低热质量

    公开(公告)号：US20070072031A1

    公开(公告)日：2007-03-29

    申请号：US11604411

    申请日：2006-11-28

    申请人： Robert Darling ,  Jeremy Meyers ,  Ryan Balliet

    发明人： Robert Darling ,  Jeremy Meyers ,  Ryan Balliet

    IPC分类号： H01M8/04 ,  H01M8/02 ,  H01M8/10

    CPC分类号： H01M8/04029 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/04197 ,  H01M8/04253 ,  H01M8/04303 ,  H01M8/241 ,  H01M2008/1095

    摘要： A PEM fuel cell power plant includes fuel cells, each of which has a cathode reactant flow field plate which is substantially impermeable to fluids, a water coolant source, and a fluid permeable anode reactant flow field plate adjacent to said water coolant source. The anode reactant flow field plates pass water from the coolant sources into the cells where the water is evaporated to cool the cells. The cathode flow field plates prevent reactant crossover between adjacent cells. By providing a single water permeable plate for each cell in the power plant the amount of water present in the power plant at shut down is limited to a degree which does not require adjunct water purging components to remove water from the plates when the power plant is shut down during freezing ambient conditions. Thus the amount of residual ice in the power plant that forms in the plates during shut down in such freezing conditions will be limited. The power plant can thus be restarted and brought up to full operating power levels quickly due to the reduced amount of ice that must be melted during startup. The power plant is thus well suited for use in powering vehicles.

    摘要翻译： PEM燃料电池发电厂包括燃料电池，每个燃料电池具有阴极反应物流场板，其基本上不渗透流体，水冷却剂源和与所述水冷却剂源相邻的流体可渗透阳极反应物流场板。 阳极反应物流场板将水从冷却剂源流入细胞，在那里水被蒸发以冷却细胞。 阴极流场板防止相邻电池之间的反应物交叉。 通过为发电厂中的每个电池提供单一的水可渗透板，关闭时发电厂中存在的水量限制在不需要辅助清水部件以在发电厂为 在冷冻环境条件期间关闭。 因此，在这种冷冻条件下在关闭期间在板中形成的发电厂中的剩余冰量将受到限制。 因此，由于在启动期间必须熔化的冰量减少，因此发电厂可以重新启动并迅速达到完全的工作功率水平。 因此，发电厂非常适合用于为车辆供电。

    Fuel cells evaporative reactant gas cooling and operational freeze prevention
    3.
    发明申请
    Fuel cells evaporative reactant gas cooling and operational freeze prevention 有权
    燃料电池蒸发反应物气体冷却和操作防冻

    公开(公告)号：US20060141331A1

    公开(公告)日：2006-06-29

    申请号：US11230066

    申请日：2005-09-19

    申请人： Carl Reiser ,  Jeremy Meyers ,  David Johnson ,  Craig Evans ,  Robert Darling ,  Tommy Skiba ,  Ryan Balliet

    发明人： Carl Reiser ,  Jeremy Meyers ,  David Johnson ,  Craig Evans ,  Robert Darling ,  Tommy Skiba ,  Ryan Balliet

    IPC分类号： H01M8/02 ,  H01M8/04

    CPC分类号： H01M8/04089 ,  F28D15/0266 ,  F28F2245/02 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/04029 ,  H01M8/241 ,  H01M8/2457 ,  H01M8/2484

    摘要： Fuel cells (38) have water passageways (67; 78, 85; 78a, 85a) that provide water through reactant gas flow field plates (74, 81) to cool the fuel cell. The water passageways may be vented to atmosphere (99), by a porous plug (69), or pumped (89, 146) with or without removing any water from the passageways. A condenser (59, 124) receives reactant air exhaust, may have a contiguous reservoir (64, 128), may be vertical, (a vehicle radiator, FIG. 2), may be horizontal, contiguous with the top of the fuel cell stack (37, FIG. 5), or below (124) the fuel cell stack (120). The passageways may be grooves (76, 77; 83, 84) or may comprise a plane of porous hydrophilic material (78a, 85a) contiguous with substantially the entire surface of one or both of the reactant gas flow field plates. Air flow in the condenser may be controlled by shutters (155). The condenser may be a heat exchanger (59a) having freeze-proof liquid flowing through a coil (161) thereof, the amount being controlled by a valve (166). A deionizer (175) may be used.

    摘要翻译： 燃料电池（38）具有通过反应气体流场板（74,81）提供水以冷却燃料电池的水通道（67; 78,85; 78a，85a）。 水通道可以通过多孔塞（69）排放到大气（99），或者通过或不从通道中去除任何水而被泵送（89,146）。 冷凝器（59,124）接收反应物排气，可以具有连续的储存器（64,128），其可以是垂直的（图2的车辆散热器）可以是水平的，与燃料电池堆的顶部邻接 （37，图5）或下面（124）燃料电池堆（120）。 通道可以是凹槽（76,77; 83,84），或者可以包括与一个或两个反应气体流场板的基本上整个表面相邻的多孔亲水材料（78a，85a）的平面。 冷凝器中的气流可由百叶窗（155）控制。 冷凝器可以是具有流过其线圈（161）的防冻液体的热交换器（59a），该量由阀（166）控制。 可以使用去离子器（175）。

    Hydrogen passivation shut down system for a fuel cell power plant
    4.
    发明申请
    Hydrogen passivation shut down system for a fuel cell power plant 审中-公开
    用于燃料电池发电厂的氢钝化关闭系统

    公开(公告)号：US20080107936A1

    公开(公告)日：2008-05-08

    申请号：US11978270

    申请日：2007-10-29

    申请人： Paul Margiott ,  Francis Preli ,  Galen Kulp ,  Michael Perry ,  Carl Reiser ,  Ryan Balliet

    发明人： Paul Margiott ,  Francis Preli ,  Galen Kulp ,  Michael Perry ,  Carl Reiser ,  Ryan Balliet

    IPC分类号： H01M8/02

    CPC分类号： H01M8/04201 ,  H01M8/0258 ,  H01M8/04097 ,  H01M8/04216 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04228 ,  H01M8/04231 ,  H01M8/04447 ,  H01M8/04559 ,  H01M8/04567 ,  H01M8/04753 ,  H01M8/04955 ,  H01M2008/1095

    摘要： The invention is a hydrogen passivation shut down system for a fuel cell power plant (10). An anode flow path (24) is in fluid communication with an anode catalyst (14) for directing hydrogen fuel to flow adjacent to the anode catalyst (14), and a cathode flow path (38) is in fluid communication with a cathode catalyst (16) for directing an oxidant to flow adjacent to the cathode catalyst (16) of a fuel cell (12). Hydrogen fuel is permitted to transfer between the anode flow path (24) and the cathode flow path (38). A hydrogen reservoir (66) is secured in fluid communication with the anode flow path (24) for receiving and storing hydrogen during fuel cell (12) operation, and for releasing the hydrogen into the fuel cell (12) whenever the fuel cell (12) is shut down.

    摘要翻译： 本发明是用于燃料电池发电厂（10）的氢钝化关闭系统。 阳极流动路径（24）与阳极催化剂（14）流体连通，用于引导氢燃料相邻于阳极催化剂（14）流动，并且阴极流动路径（38）与阴极催化剂 16），用于引导氧化剂流过邻近燃料电池（12）的阴极催化剂（16）。 允许氢燃料在阳极流路（24）和阴极流路（38）之间传递。 储氢器（66）被固定成与阳极流动路径（24）流体连通，用于在燃料电池（12）操作期间接收和储存氢气，并且每当燃料电池（12）被释放时，氢气释放到燃料电池 ）被关闭。

    Start up of cascaded fuel cell stack
    7.
    发明申请
    Start up of cascaded fuel cell stack 有权
    启动级联燃料电池堆

    公开(公告)号：US20060246326A1

    公开(公告)日：2006-11-02

    申请号：US11480123

    申请日：2006-06-30

    申请人： Thomas Fuller ,  Ryan Balliet

    发明人： Thomas Fuller ,  Ryan Balliet

    IPC分类号： H01M8/04 ,  H01M8/24

    CPC分类号： H01M8/249 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04228 ,  H01M8/04302 ,  H01M8/04303 ,  H01M8/04559 ,  H01M8/0488 ,  H01M8/04888

    摘要： A cascaded fuel cell stack (9a) includes a plurality of groups (10-12) of fuel cells (13) connected electrically in series by means of conductive separator plates (58, 59) and current collecting pressure plates (56, 57). Each group has an inlet fuel distributing fuel inlet manifold (17a, 19c, 20c), a fuel exit manifold (19a, 20a) of each group except the last feeding the inlet manifold of each subsequent group. A microcontroller responds to signals from a plurality of voltage sensing devices (48a-48c) to cause corresponding switches (50a-50c) (a) to connect each group, and all preceding groups in the sequence, to a voltage limiting device (VLD) (45), or (b) to connect each group to its own (VLD (45a-45c), in response to sensing a predetermined average cell voltage across the corresponding group. When normal operation occurs, the microcontroller connects the main load and disconnects the voltage limiting device (53) (25).

    摘要翻译： 级联燃料电池堆（9a）包括通过导电隔板（58,59）和集流压板（56,57）串联电连接的多个燃料电池组（10-12） 。 每个组具有入口燃料分配燃料入口歧管（17a，19c，20c），每组的燃料出口歧管（21a，20a），除了最后进料每个后续组的入口歧管。 微控制器响应来自多个电压感测装置（48a至48c）的信号，以使相应的开关（50a至50c）（a）将每个组和该序列中的所有先前组连接到电压限制 设备（VLD）（45）或（b）响应于感测到对应组中的预定平均单元电压而将每个组连接到其自己的（VLD（45a-45c）），当正常操作发生时，微控制器 连接主负载并断开电压限制装置（53）（25）。

    Start up cascaded fuel cell stack
    10.
    发明申请
    Start up cascaded fuel cell stack 审中-公开
    启动级联燃料电池堆

    公开(公告)号：US20050142407A1

    公开(公告)日：2005-06-30

    申请号：US10746307

    申请日：2003-12-26

    申请人： Thomas Fuller ,  Ryan Balliet

    发明人： Thomas Fuller ,  Ryan Balliet

    IPC分类号： H01M8/04 ,  H01M8/24

    CPC分类号： H01M8/249 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04228 ,  H01M8/04302 ,  H01M8/04303 ,  H01M8/04559 ,  H01M8/0488 ,  H01M8/04888

    摘要： A cascaded fuel cell stack (9a) includes a plurality of groups (10-12) of fuel cells (13) connected electrically in series by means of conductive separator plates (58, 59) and current collecting pressure plates (56, 57). Each group has an inlet fuel distributing fuel inlet manifold (17a, 19c, 20c), a fuel exit manifold (19a, 20a) of each group except the last feeding the inlet manifold of each subsequent group. A microcontroller responds to signals from a plurality of voltage sensing devices (48a-48c) to cause corresponding switches (50a-50c) (a) to connect each group, and all preceding groups in the sequence, to a voltage limiting device (VLD) (45), or (b) to connect each group to its own (VLD (45a-45c), in response to sensing a predetermined average cell voltage across the corresponding group. When normal operation occurs, the microcontroller connects the main load and disconnects the voltage limiting device (53) (25).

    摘要翻译： 级联燃料电池堆（9a）包括通过导电隔板（58,59）和集流压板（56,57）串联电连接的多个燃料电池组（10-12） 。 每个组具有入口燃料分配燃料入口歧管（17a，19c，20c），每组的燃料出口歧管（21a，20a），除了最后进料每个后续组的入口歧管。 微控制器响应来自多个电压感测装置（48a至48c）的信号，以使相应的开关（50a至50c）（a）将每个组和该序列中的所有先前组连接到电压限制 设备（VLD）（45）或（b）响应于感测到对应组中的预定平均单元电压而将每个组连接到其自己的（VLD（45a-45c）），当正常操作发生时，微控制器 连接主负载并断开电压限制装置（53）（25）。