公开(公告)号：US20100086811A1

公开(公告)日：2010-04-08

申请号：US12516398

申请日：2006-12-22

申请人： Ryan J. Balliet ,  Carl A. Reiser ,  Timothy W. Patterson

发明人： Ryan J. Balliet ,  Carl A. Reiser ,  Timothy W. Patterson

IPC分类号： H01M8/00 ,  H01M8/04

CPC分类号： H01M8/04291 ,  H01M8/04731 ,  H01M8/04753 ,  H01M8/04828 ,  H01M8/0488 ,  H01M8/0491

摘要： A method of controlling an amount of liquid in a fuel cell includes increasing the oxygen utilization within the fuel cell to increase heat. The heat reduces the amount of liquid in the fuel cell. A disclosed example method includes decreasing a supply of air to the fuel cell to lower a fuel cell voltage by increasing the oxygen utilization. The example method includes maintaining an essentially electrical current density while decreasing the supply of air.

摘要翻译： 控制燃料电池中的液体量的方法包括增加燃料电池内的氧气利用率以增加热量。 热量减少燃料电池中的液体量。 所公开的示例方法包括通过增加氧气利用来减少向燃料电池供应空气以降低燃料电池电压。 该示例性方法包括在减少空气供应的同时保持基本上电流密度。

公开(公告)号：US06841278B2

公开(公告)日：2005-01-11

申请号：US10160384

申请日：2002-05-30

申请人： Carl A. Reiser ,  Ryan J. Balliet

发明人： Carl A. Reiser ,  Ryan J. Balliet

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

CPC分类号： H01M8/04228 ,  H01M8/0267 ,  H01M8/04029 ,  H01M8/04223 ,  H01M8/241 ,  H01M8/2457 ,  H01M2008/1095

摘要： Performance of a fuel cell stack (12) is recovered following long term decay by connecting (51) an auxiliary load (50) to the fuel cell while shutting off one or more of oxidant inlet valve (27a), oxidant pressure regulating valve (28a) or oxidant pump (26), which all may be achieved with a controller (46), to cyclically starve the cathode of oxidant so that it achieves hydrogen potential, e.g., less than 0.1 volts, for on the order of tens of seconds, repetitively, such as at every 10 or 20 seconds, while the auxiliary load remains connected, initially drawing 10 to 100 mASC, for example. Complete rejuvenation is obtained following 1800 or more cycles over a period of five or more hours.

摘要翻译： 燃料电池堆（12）的性能通过在将一个或多个氧化剂入口阀（27a），氧化剂压力调节阀（28a）的一个或多个 ）或氧化剂泵（26），其全部可以通过控制器（46）实现，以使氧化剂的阴极循环地饥饿，使得其实现氢电势，例如小于0.1伏，几十秒， 重复地，例如每10或20秒，而辅助负载保持连接，例如最初绘制10至100mASC。 在五个或更多个小时的时间内，可以在1800次以上的循环中获得完全复原。

公开(公告)号：US06984464B2

公开(公告)日：2006-01-10

申请号：US10635779

申请日：2003-08-06

申请人： Paul R. Margiott ,  Francis R. Preli, Jr. ,  Galen W. Kulp ,  Michael L. Perry ,  Carl A. Reiser ,  Ryan J. Balliet

发明人： Paul R. Margiott ,  Francis R. Preli, Jr. ,  Galen W. Kulp ,  Michael L. Perry ,  Carl A. Reiser ,  Ryan J. Balliet

IPC分类号： H01M8/00

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 fuel cell (12) whenever the fuel cell (12) is shut down.

公开(公告)号：US06838199B2

公开(公告)日：2005-01-04

申请号：US10329874

申请日：2002-12-26

申请人： Ryan J. Balliet ,  Carl A. Reiser ,  Timothy W. Patterson ,  Michael L. Perry

发明人： Ryan J. Balliet ,  Carl A. Reiser ,  Timothy W. Patterson ,  Michael L. Perry

IPC分类号： H01M8/00 ,  H01M8/04 ,  H02J20060101

CPC分类号： H01M8/04231

摘要： The invention is a start up system and method for a fuel cell power plant (10) using a purging of the cathode flow field (38) with a hydrogen rich reducing fluid fuel to minimize corrosion of the cathode electrode (16). The method for starting up the shut down fuel cell power plant (10) includes the steps of: a. purging the cathode flow field (38) with the reducing fluid fuel; b. then, directing the reducing fluid fuel to flow through an anode flow field (28); c. next, terminating flow of the fuel through the cathode flow field (38) and directing an oxygen containing oxidant to flow through the cathode flow field (38); and, d. finally, connecting a primary load (70) to the fuel cell (12) so that electrical current flows from the fuel cell (12) to the primary load (70).

摘要翻译： 本发明是一种燃料电池发电厂（10）的起动系统和方法，该燃料电池发电厂使用富氢还原流体燃料清除阴极流场（38），以使阴极电极（16）的腐蚀最小化。 用于启动关闭燃料电池发电厂（10）的方法包括以下步骤：a。 用所述还原流体燃料净化所述阴极流场（38）; b。 然后引导所述还原流体燃料流过阳极流场（28）; C。 接下来，通过阴极流场（38）终止燃料流并引导含氧氧化剂流过阴极流场（38）; 和，d。 最后，将主负载（70）连接到燃料电池（12），使得电流从燃料电池（12）流向主负载（70）。

公开(公告)号：US06835479B2

公开(公告)日：2004-12-28

申请号：US10180393

申请日：2002-06-26

申请人： Ryan J. Balliet ,  Carl A. Reiser

发明人： Ryan J. Balliet ,  Carl A. Reiser

IPC分类号： H01M804

CPC分类号： H01M8/04231

摘要： The invention is a system and method for shutting down a fuel cell power plant having at least one fuel cell, a primary load, and an auxiliary load that receive electrical current from electrodes of the fuel cell through an external circuit. Shutting down the plant includes disconnecting the primary load; terminating flow of the oxidant through a cathode flow field; connecting the auxiliary load to consume oxygen within the fuel cell; disconnecting the auxiliary load; connecting a power supply to the fuel cell electrodes to increase a concentration of hydrogen within the cathode flow field; and, then, decreasing or eliminating flow of hydrogen into an anode flow field after an equilibrium gas concentration of at least 0.0001% hydrogen, balance fuel cell inert gases, is achieved in both the anode and cathode flow fields.

公开(公告)号：US20100086817A1

公开(公告)日：2010-04-08

申请号：US12517291

申请日：2006-12-29

申请人： Tommy Skiba ,  Ryan J. Balliet

发明人： Tommy Skiba ,  Ryan J. Balliet

IPC分类号： H01M8/04 ,  H01M2/02

CPC分类号： H01M8/04291 ,  H01M8/04029 ,  H01M8/04119

摘要： A fuel cell includes a water transport plate providing a water flow field. The water flow field includes water having gas. A vent is in fluid communication with the water flow field. The vent includes a membrane that obstructs flow of water past the membrane while permitting the flow of gas past the membrane. The membrane can include a pore size between approximately 0.1μ to 10.0μ, which enables gases to pass through the pores while blocking water. The membrane can be hydrophobic, for example, Teflon, to prevent the passage of water through the membrane. A hydrophobic fluid can also be arranged on the membrane to act as a check valve.

摘要翻译： 燃料电池包括提供水流场的水输送板。 水流场包括具有气体的水。 排气口与水流场流体连通。 排气口包括阻止水流过膜的膜，同时允许气体流过隔膜。 膜可以包括约0.1μ至10.0μ之间的孔径，这使得气体能够通过孔而阻止水。 膜可以是疏水的，例如Teflon，以防止水通过膜。 疏水流体也可以布置在膜上以用作止回阀。

公开(公告)号：US07871732B2

公开(公告)日：2011-01-18

申请号：US11988700

申请日：2005-07-15

申请人： Carl A. Reiser ,  Ryan J. Balliet

发明人： Carl A. Reiser ,  Ryan J. Balliet

IPC分类号： H01M8/24 ,  H01M2/38

CPC分类号： H01M8/04171 ,  H01M8/0258 ,  H01M8/026 ,  H01M8/04164 ,  H01M8/241 ,  H01M8/2484 ,  H01M2008/1095

摘要： A fuel cell stack (32) includes a plurality of fuel cells in which each fuel cell is formed between a pair of conductive, porous, substantially hydrophilic plates (17) having oxidant reactant gas flow field channels (12-15) on a first surface and fuel reactant gas flow field channels (19, 19a) on a second surface opposite to the first surface, each ˜f the plates being separated from a plate adjacent thereto by a unitized electrode assembly (20) including a cathode electrode (22), having a gas diffusion layer (GDL) an anode electrode (23) having a GDL with catalyst between each GDL and a membrane (21) disposed therebetween. Above the stack is a condenser (33} having tubes (34) that receive coolant air (39, 40} to condense water vapor out of oxidant exhaust in a chamber (43). Inter-cell wicking strips (26) receive condensate and conduct it along the length of the stack to all cells. In-cell wicking strips (1G, 1 ˜a) on one or both surfaces conduct the water from the inter-cell wicking strips downwardly along the entire planform of each cell. Reactant air is provided to an air inlet manifold (47) through an air inlet conduit (48) from an air pump (49).

摘要翻译： 燃料电池堆（32）包括多个燃料电池，其中每个燃料电池形成在一对导电的，多孔的，基本上亲水的板（17）之间，该板在第一表面上具有氧化剂反应物气体流场通道（12-15） 以及在与第一表面相对的第二表面上的燃料反应物气体流场通道（19,19a），每个板通过包括阴极电极（22）的组合电极组件（20）与与其相邻的板分离， 具有气体扩散层（GDL），在每个GDL和设置在其间的膜（21）之间具有GDL的具有催化剂的阳极电极（23）。 在堆叠之上是具有管（34）的冷凝器（33），其具有接收冷却剂空气（39,40）以将水蒸汽冷凝在室（43）中的氧化剂排气中。细胞间芯吸条（26）接收冷凝物和导管 在一个或两个表面上的细胞内吸液条（1G，1〜a）沿着每个电池的整个平面向下引导细胞内芯吸条带的水，反应物空气为 通过来自空气泵（49）的空气入口导管（48）提供给进气歧管（47）。

公开(公告)号：US20090123807A1

公开(公告)日：2009-05-14

申请号：US11988700

申请日：2005-07-15

申请人： Carl A. Reiser ,  Ryan J. Balliet

发明人： Carl A. Reiser ,  Ryan J. Balliet

IPC分类号： H01M2/38

CPC分类号： H01M8/04171 ,  H01M8/0258 ,  H01M8/026 ,  H01M8/04164 ,  H01M8/241 ,  H01M8/2484 ,  H01M2008/1095

摘要： A fuel cell stack (32) includes a plurality of fuel cells in which each fuel cell is formed between a pair of conductive, porous, substantially hydrophilic plates (17) having oxidant reactant gas flow field channels (12-15) on a first surface and fuel reactant gas flow field channels (19, 19a) on a second surface opposite to the first surface, each ˜f the plates being separated from a plate adjacent thereto by a unitized electrode assembly (20) including a cathode electrode (22), having a gas diffusion layer (GDL) an anode electrode (23) having a GDL with catalyst between each GDL and a membrane (21) disposed therebetween. Above the stack is a condenser (33} having tubes (34) that receive coolant air (39, 40) to condense water vapor out of oxidant exhaust in a chamber (43). Inter-cell wicking strips (26) receive condensate and conduct it along the length of the stack to all cells. In-cell wicking strips (1G. 1˜a) on one or both surfaces conduct the water from the inter-cell wicking strips downwardly along the entire planform of each cell. Reactant air is provided to an air inlet manifold (47) through an air inlet conduit (48) from an air pump (49).

摘要翻译： 燃料电池堆（32）包括多个燃料电池，其中每个燃料电池形成在一对导电的，多孔的，基本上亲水的板（17）之间，该板在第一表面上具有氧化剂反应物气体流场通道（12-15） 以及在与第一表面相对的第二表面上的燃料反应物气体流场通道（19,19a），每个板通过包括阴极电极（22）的组合电极组件（20）与其相邻的板分离， 具有气体扩散层（GDL），在每个GDL和设置在其间的膜（21）之间具有GDL的具有催化剂的阳极电极（23）。 在堆叠之上是具有容纳冷却剂空气（39,40）的管（34）的冷凝器（33），以将水蒸汽冷凝在室（43）中的氧化剂排气中。细胞内芯吸条（26）接收冷凝物和导管 在一个或两个表面上的细胞内吸液条（1G。1〜a）沿着每个电池的整个平面向下传导细胞间芯吸条带的水，反应物空气为 通过来自空气泵（49）的空气入口导管（48）提供给进气歧管（47）。

公开(公告)号：US07147945B2

公开(公告)日：2006-12-12

申请号：US10244495

申请日：2002-09-16

申请人： Ryan J. Balliet ,  Carl A. Reiser

发明人： Ryan J. Balliet ,  Carl A. Reiser

IPC分类号： H01M8/00 ,  H01M8/04 ,  H01M10/44 ,  H01M2/00 ,  G01N21/00

CPC分类号： H01M8/04228 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/04223 ,  H01M8/04303 ,  H01M8/241 ,  H01M8/2457 ,  H01M8/2465

摘要： The invention is a system (10) and method for determining a gas composition within a fuel cell (12) of a shut down fuel cell power plant. The system (10) includes at least one fuel cell (12), a sensor circuit (86) secured in electrical connection with the fuel cell (12), wherein the circuit (86) includes a power source (88), a voltage-measuring device (90), and a sensor circuit switch (92). The circuit (86) is secured so that the power source (88) may selectively deliver a pre-determined sensing current to the fuel cell (12) for a pre-determined sensing duration. The system (10) selectively admits the reducing fluid into an anode flow field (28) of the cell (12) whenever the sensor circuit (86) senses that a shut down monitoring voltage of the fuel cell (12) is the same as or exceeds a calibrated sensor voltage limit of the fuel cell (12).

摘要翻译： 本发明是用于确定关闭燃料电池发电厂的燃料电池（12）内的气体成分的系统（10）和方法。 所述系统（10）包括至少一个燃料电池（12），与所述燃料电池（12）电连接的传感器电路（86），其中所述电路（86）包括电源（88） 测量装置（90）和传感器电路开关（92）。 电路（86）被固定，使得电源（88）可以选择性地将预定的感测电流输送到燃料电池（12）以获得预定的感测持续时间。 只要传感器电路（86）感测到燃料电池（12）的关闭监测电压与或等于（或）的相同，则系统（10）有选择地将还原流体接纳到电池（12）的阳极流场（28） 超过燃料电池（12）的校准传感器电压极限。

公开(公告)号：US06977121B2

公开(公告)日：2005-12-20

申请号：US10406453

申请日：2003-04-03

申请人： Ryan J. Balliet ,  Thomas D. Jarvi ,  Lars M. Pedersen ,  Michael L. Perry ,  Carl A. Reiser

发明人： Ryan J. Balliet ,  Thomas D. Jarvi ,  Lars M. Pedersen ,  Michael L. Perry ,  Carl A. Reiser

IPC分类号： H01M4/92 ,  H01M8/00 ,  H01M8/04 ,  H01M8/10

CPC分类号： H01M8/04462 ,  H01M4/92 ,  H01M8/04089 ,  H01M8/04567 ,  H01M8/04597 ,  H01M8/04753 ,  H01M8/04783 ,  H01M8/1004

摘要： A fuel cell power plant (10) having a fuel concentration sensor cell (54) is disclosed for detecting a concentration of fuel in a fuel cell (12) of the plant (10). A portion of a fuel exhaust stream is directed to flow through the sensor cell (54) adjacent to a membrane electrode assembly (60) of the sensor cell (54). A power circuit (62) may or may not deliver an electrical current to the cell (12), while changes in voltage across the cell (12) that are proportional to changes in hydrogen concentrations within the fuel exhaust stream are detected by a detector (68) which communicates the changes to a controller (108) for controlling a rate of fuel supply to the fuel cell (12). A porous sensor water transport plate (74) cools, humidifies delivers and removes liquid from the sensor cell (12).

摘要翻译： 公开了具有燃料浓度传感器单元（54）的燃料电池发电厂（10），用于检测设备（10）的燃料电池（12）中的燃料浓度。 燃料排出流的一部分被引导以与传感器单元（54）的膜电极组件（60）相邻的传感器单元（54）流动。 电源电路（62）可以或可以不向电池（12）传递电流，而与燃料排出流中的氢浓度变化成比例的电池（12）的电压变化由检测器（ 68），其将所述变化传达到控制器（108），用于控制对燃料电池（12）的燃料供给速率。 多孔传感器水输送板（74）冷却，加湿输送并从传感器电池（12）中去除液体。