公开(公告)号：US20100119911A1

公开(公告)日：2010-05-13

申请号：US12448144

申请日：2006-12-22

申请人： Carl A. Reiser ,  Richard D. Breault

发明人： Carl A. Reiser ,  Richard D. Breault

IPC分类号： H01M2/00

CPC分类号： H01M8/04119 ,  H01M8/0223 ,  H01M8/04283 ,  H01M8/086 ,  H01M8/2445 ,  H01M8/2459

摘要： A liquid electrolyte fuel cell power plant (6) includes a stack (7) of fuel cells (8) demarcated by fluid impermeable separator plates (19, 23) with additional wicking to ensure backflow of condensated electrolyte from a condensation zone (27) back through the active area of the fuel cells. Wicking material (49) is disposed in channels interspersed with reactant gas channels (20, 21); wicking material (54) is disposed in zones (53) formed within electrode substrates (16, 17); wicking material (58) is disposed on the base surface of reactant gas channels (20, 21); wicking material (62) is disposed between the ribs (50) of the separator plates (19, 23) and the adjacent surfaces of the substrates (16, 17); and wicking material (65) is formed as ribs on planar separator plates (19a, 23a), the spaces between the wicking ribs (65) comprising the reactant gas channels (20, 21).

摘要翻译： 液体电解质燃料电池发电厂（6）包括由流体不可渗透隔板（19,23）划分的燃料电池堆（7），附加芯吸，以确保冷凝区（27）向后冷凝的电解液回流 通过燃料电池的活动区域。 芯吸材料（49）设置在散布有反应气体通道（20,21）的通道中; 芯吸材料（54）设置在形成在电极基板（16,17）内的区域（53）中。 芯吸材料（58）设置在反应气体通道（20,21）的基面上; 芯吸材料（62）设置在隔板（19,23）的肋（50）和基板（16,17）的相邻表面之间; 并且芯吸材料（65）在平面隔板（19a，23a）上形成为肋，包括反应气体通道（20,21）的芯吸排（65）之间的空间。

公开(公告)号：US09231262B2

公开(公告)日：2016-01-05

申请号：US12735101

申请日：2007-12-24

申请人： Carl A. Reiser

发明人： Carl A. Reiser

IPC分类号： H01M8/04

CPC分类号： H01M8/04552 ,  H01M8/04559 ,  H01M8/04671 ,  H01M8/04679 ,  H01M8/04701 ,  H01M8/04753 ,  H01M8/04768 ,  H01M8/0494 ,  Y02E60/50

摘要： A fuel cell voltage monitor (12a, 12b, 40, 140, 440) detects and may respond to, a problematic operating condition at or near a fuel cell (10) or within a subset (n) of fuel cells, as in a fuel cell stack assembly (110). Two or more co-planar, spaced voltage leads or contacts in a fuel cell plane, as at a separator plate, detect the presence of a voltage difference within the plate/plane as an indication of an operating problem at or near the fuel cell. Placement of such arrangements of at least two spaced voltage leads at various subset intervals (n), of fuel cells in a stack assembly allow monitoring for such problems throughout the stack assembly, either by analysis of voltage difference between co-planar leads at respective individual fuel cells or by comparison of voltage differences between aligned pairs of voltage leads at opposite ends of a subset.

摘要翻译： 燃料电池电压监视器（12a，12b，40,140,​​440）检测并响应燃料电池（10）处或其附近或燃料电池子集（n）内的有问题的操作条件，如燃料 电池堆组件（110）。 在分隔板处，在燃料电池平面中的两个或更多个共平面的间隔开的电压引线或触点检测在板/平面内的电压差的存在，作为在燃料电池处或其附近的操作问题的指示。 在堆叠组件中的燃料电池的各种子集间隔（n）处布置至少两个间隔的电压引线，允许通过分析各个单独的共平面引线之间的电压差来监测整个堆叠组件中的这些问题 燃料电池或通过比较在子集的相对端的对齐的电压引线对之间的电压差。

公开(公告)号：US08808934B2

公开(公告)日：2014-08-19

申请号：US12998152

申请日：2008-10-03

申请人： Matthew P. Wilson ,  Venkateshwarlu Yadha ,  Carl A. Reiser

发明人： Matthew P. Wilson ,  Venkateshwarlu Yadha ,  Carl A. Reiser

IPC分类号： H01M8/04

CPC分类号： H01M8/04626 ,  H01M8/04552 ,  H01M8/04753 ,  H01M8/04761 ,  H01M8/04873 ,  H01M8/04947 ,  H01M2250/20 ,  Y02E60/50 ,  Y02T10/92 ,  Y02T90/32

摘要： A fuel cell power plant (5) includes a stack (6) of fuel cells, each of which have an anode (9), a cathode (10), and a PEM (11) disposed between the anode and the cathode. A controller (17) recognizes an indication (67) of no load demand (68) by a load (59), to operate (45) an air recycle loop (44-46) utilizing the process air blower (35) and transfer the power output (57) of the stack from the load (59) to an auxiliary load (60), comprising a resistance which will consume a predetermined small amount of power in response to the current applied thereto, when the stack operates at a critical voltage above which fuel cell corrosion is unacceptable. Fuel and air will also be reduced (16, 40). The controller may cause increased cathode recycle when the critical voltage is reached and increased air when the voltage is a fraction of a volt below the critical voltage.

摘要翻译： 燃料电池发电厂（5）包括燃料电池堆（6），每个燃料电池单元具有设置在阳极和阴极之间的阳极（9），阴极（10）和PEM（11）。 控制器（17）通过负载（59）识别无负载要求指示（67），以利用处理空气鼓风机（35）操作（45）空气循环回路（44-46），并转移 堆叠从负载（59）到辅助负载（60）的功率输出（57），包括响应于施加到其上的电流将消耗预定的小量功率的电阻，当堆栈以临界电压 以上燃料电池腐蚀是不可接受的。 燃料和空气也将减少（16，40）。 当达到临界电压时，控制器可能导致增加的阴极再循环，当电压是低于临界电压的伏特的一小部分时，空气增加。

公开(公告)号：US08277991B2

公开(公告)日：2012-10-02

申请号：US12386950

申请日：2009-04-24

申请人： Carl A. Reiser ,  Tommy Skiba ,  Timothy W. Patterson, Jr.

发明人： Carl A. Reiser ,  Tommy Skiba ,  Timothy W. Patterson, Jr.

IPC分类号： H01M8/04 ,  H01M2/02

CPC分类号： H01M8/04228 ,  H01M8/04097 ,  H01M8/04201 ,  H01M8/04216 ,  H01M8/04223 ,  H01M8/04303 ,  H01M8/0687 ,  H01M2008/1095

摘要： The invention is a hydrogen passivation shut down system for a fuel cell power plant (10, 200). During shut down of the plant (10, 200), hydrogen fuel is permitted to transfer between an anode flow path (24, 24′) and a cathode flow path (38, 38′). A passive hydrogen bleed line (202) permits passage of a smallest amount of hydrogen into the fuel cell (12′) necessary to maintain the fuel cell (12′) in a passive state. A diffusion media (204) may be secured in fluid communication with the bleed line (202) to maintain a constant, slow rate of diffusion of the hydrogen into the fuel cell (12′) despite varying pressure differentials between the shutdown fuel cell (12′) and ambient atmosphere adjacent the cell (12′).

摘要翻译： 本发明是用于燃料电池发电厂（10,200）的氢钝化关闭系统。 在工厂（10,200）关闭期间，允许氢燃料在阳极流动路径（24,24'）和阴极流动路径（38,38'）之间传递。 被动氢气排放管线（202）允许将最小量的氢气通入维持燃料电池（12'）处于被动状态所必需的燃料电池（12'）中。 扩散介质（204）可以被固定成与排放管线（202）流体连通，以保持氢气进入燃料电池（12'）的恒定的慢速扩散速率，尽管关闭燃料电池（12 '）和邻近电池（12'）的环境气氛。

公开(公告)号：US20120115058A1

公开(公告)日：2012-05-10

申请号：US13261129

申请日：2009-08-28

申请人： Robert M. Darling ,  Paravastu Badrinarayanan ,  Carl A. Reiser

发明人： Robert M. Darling ,  Paravastu Badrinarayanan ,  Carl A. Reiser

IPC分类号： H01M8/04

CPC分类号： H01M8/0432 ,  H01M8/04559 ,  H01M8/04753 ,  H01M8/0488 ,  H01M8/0491 ,  H01M2008/1095

摘要： A method of operating a fuel cell power plant (10) including a stack (11) of fuel cells having an anode catalyst layer and a cathode electrode (15) including a catalyst layer disposed on catalyst support material is characterized by, during normal operation of said power plant, adjusting the voltage of the stack to be substantially equal to or less than a predetermined maximum voltage for the temperature of the stack. Further, said step of adjusting comprises adjusting the stack voltage to the lesser of: a) a predetermined voltage above which corrosion of catalyst support material is significant and below which corrosion of catalyst support material is insignificant at the temperature of the stack; and b) a predetermined voltage above which dissolution of catalyst is significant and below which dissolution of the catalyst is insignificant at the temperature of the stack.

摘要翻译： 一种操作包括具有阳极催化剂层的燃料电池堆（11）和包括设置在催化剂载体材料上的催化剂层的阴极电极（15）的燃料电池发电厂（10）的方法，其特征在于，在正常运行期间， 所述发电厂将所述堆的电压调整为基本上等于或小于所述堆的温度的预定最大电压。 此外，所述调节步骤包括将堆叠电压调整为较小的一个：a）预定电压，在该预定电压之上，催化剂载体材料的腐蚀是显着的，低于该预定电压，催化剂载体材料的腐蚀在堆叠温度下不显着; 和b）预定电压，其上催化剂的溶解是显着的，低于该电压时，催化剂的溶解在叠层的温度下是不显着的。

公开(公告)号：US07977010B2

公开(公告)日：2011-07-12

申请号：US12799387

申请日：2010-04-23

申请人： Robert Darling ,  Carl A. Reiser ,  William J. Bajorek

发明人： Robert Darling ,  Carl A. Reiser ,  William J. Bajorek

IPC分类号： H01M2/08

CPC分类号： H01M8/04029 ,  H01M8/04059 ,  H01M8/04067 ,  H01M8/0662

摘要： A polymer electrolyte membrane (PEM) fuel cell power plant is cooled evaporatively by a non-circulating pressurized water coolant system. The coolant system utilizes a hydrophobic porous plug for bleeding air from the coolant water while maintaining coolant back pressure in a coolant flow field of the system. Furthermore, there is a first method for identifying appropriate parameters of the hydrophobic porous plug for use with a known particular coolant system; and a second method for determining proper operating conditions for a fuel cell water coolant system which can operate with a hydrophobic porous plug closure having known physical parameters.

摘要翻译： 聚合物电解质膜（PEM）燃料电池发电厂通过非循环加压水冷却剂系统蒸发冷却。 冷却剂系统使用疏水性多孔塞，用于从冷却水中排出空气，同时保持系统的冷却剂流场中的冷却剂背压。 此外，存在用于识别用于已知特定冷却剂系统的疏水性多孔塞的适当参数的第一种方法; 以及用于确定燃料电池水冷却剂系统的适当操作条件的第二种方法，所述燃料电池水冷却剂系统可以用具有已知物理参数的疏水性多孔塞子

公开(公告)号：US20100068566A1

公开(公告)日：2010-03-18

申请号：US12448124

申请日：2006-12-21

申请人： Sathya Motupally ,  Carl A. Reiser

发明人： Sathya Motupally ,  Carl A. Reiser

IPC分类号： H01M8/00 ,  H01M4/00

CPC分类号： H01M8/04089 ,  H01M8/04559 ,  H01M8/04604 ,  H01M8/04753 ,  H01M8/04925 ,  H01M2008/1095

摘要： A method and apparatus for mitigating decay of multiple membrane electrode assemblies (20) in a fuel cell stack (12). Each membrane electrode assembly (20) includes an anode (16) and a cathode (18) on respectively opposite sides of a proton exchange membrane (14). The positioning of a plane of potential change (Xo) is controlled to be/maintained outside the membrane and within the cathode of each membrane electrode assembly, both during regular electrical load cycling and during relatively idle operation of a primary electrical load (28) connected to the fuel cell stack. A determination (22, 24, 54, 50) of electrical demand on the fuel cell stack is reflective of either regular electrical load cycling or relatively idle operation, and during relatively idle operation a secondary electrical load (52) is connected (26, 24″) to the stack and/or a flow of air (36) to the cathode is regulated (62, 60) to maintain the plane of potential change (Xo) outside the membrane.

摘要翻译： 一种用于减轻燃料电池堆（12）中的多个膜电极组件（20）的衰减的方法和装置。 每个膜电极组件（20）在质子交换膜（14）的相对侧上包括阳极（16）和阴极（18）。 在常规电力负载循环期间和在连接的主电气负载（28）的相对空闲运行期间，电位变化平面（Xo）的定位被控制/保持在膜的外部和每个膜电极组件的阴极内 到燃料电池堆。 对燃料电池堆的电力需求的确定（22,24,54,50）反映了常规的电负载循环或相对空闲的操作，并且在相对空闲的运行期间，连接二次电负载（52,24） “）和/或到阴极的空气流（36）被调节（62,60）以维持膜外的电位变化（Xo）的平面。

公开(公告)号：US20090061262A1

公开(公告)日：2009-03-05

申请号：US11918624

申请日：2005-04-15

申请人： Robert M. Darling ,  Craig E. Evans ,  Carl A. Reiser ,  Tommy Skiba ,  Ryan J. Balliet

发明人： Robert M. Darling ,  Craig E. Evans ,  Carl A. Reiser ,  Tommy Skiba ,  Ryan J. Balliet

IPC分类号： H01M8/04 ,  H01M8/10

CPC分类号： H01M8/04291 ,  H01M8/04029 ,  H01M8/04134 ,  H01M8/04164 ,  H01M8/04171 ,  H01M8/04253 ,  H01M8/04303 ,  H01M8/241 ,  H01M8/2415 ,  H01M8/2484 ,  H01M2008/1095

摘要： A fuel cell power plant (19, 19a) has a plurality of fuel cells (70, 70a, 70c) arranged in a stack (20, 20c), each fuel cell having porous, at least partially hydrophilic water transport plates (75, 81) with fuel (74) and oxidant (82) reactant gas channels, there being water channels (78, 85, 78a, 85a, 78c, 85c) exchanging water with the water transport plates. On shut down, water is retained in the water channels and water transport plates by means of either a micro vacuum pump (46), one or two valves (89, 90, 118, 120), a check valve (95, 99), capillary force in the water channels to prevent water from entering the reactant channels which, if frozen, could block flow of reactant gas upon startup.

摘要翻译： 燃料电池发电厂（19,19a）具有以堆叠（20,20c）排列的多个燃料电池（70,70a，70c），每个燃料电池具有多孔的，至少部分亲水的水输送板（75,81 ）与燃料（74）和氧化剂（82）反应物气体通道，存在与水输送板交换水的水通道（78,85,78a，85a，78c，85c）。 关闭时，通过微型真空泵（46），一个或两个阀（89,90,118,120），止回阀（95,99），水被保持在水通道和水输送板中， 水通道中的毛细管力，以防止水进入反应物通道，如果冷冻，则可能阻止反应气体在启动时流动。

公开(公告)号：US07410712B2

公开(公告)日：2008-08-12

申请号：US11073207

申请日：2005-03-05

申请人： Carl A. Reiser ,  Deliang Yang ,  Richard D. Sawyer

发明人： Carl A. Reiser ,  Deliang Yang ,  Richard D. Sawyer

IPC分类号： H01M8/00 ,  H01M8/04

CPC分类号： H01M8/04302 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/04223 ,  H01M8/241 ,  H01M8/2457

摘要： A procedure for starting up a fuel cell system that is disconnected from its primary load and has both its cathode and anode flow fields filled with air includes initiating a flow of air through the cathode flow field and rapidly displacing the air in the anode flow field by delivering a flow of fresh hydrogen containing fuel into the anode flow field, and thereafter connecting the primary load across the cell. Sufficiently fast purging of the anode flow field with hydrogen prior to connecting the cells to the load eliminates the need for purging the anode flow field with an inert gas, such as nitrogen, upon start-up.

摘要翻译： 用于启动与其主要负载断开并且其阴极和阳极流动场充满空气的燃料电池系统的过程包括引发空气流过阴极流场并且通过在阳极流场中快速移动空气，由 将新鲜的含氢燃料流输送到阳极流场中，然后将主负载连接在电池上。 在将电池连接到负载之前，用氢气充分快速地吹扫阳极流场消除了在启动时用惰性气体例如氮气吹扫阳极流场的需要。

公开(公告)号：US07282285B2

公开(公告)日：2007-10-16

申请号：US10473989

申请日：2002-04-05

申请人： Harold T. Couch ,  Carl A. Reiser ,  Gennady Resnick ,  Deliang Yang ,  Emily A. Dykeman ,  David A. Condit

发明人： Harold T. Couch ,  Carl A. Reiser ,  Gennady Resnick ,  Deliang Yang ,  Emily A. Dykeman ,  David A. Condit

IPC分类号： H01M8/04

CPC分类号： H01M8/04253 ,  H01M8/0267 ,  H01M8/04029 ,  H01M8/04303 ,  H01M8/2457 ,  H01M8/2465

摘要： A cell stack assembly (102) coolant system comprises a coolant exhaust conduit (110) in fluid communication with a coolant exhaust manifold (108) and a coolant pump (112). A coolant inlet conduit (120) enables transportation of the coolant to the coolant inlet manifold. The coolant system further includes a bypass conduit (132) in fluid communication with the coolant exhaust manifold and the coolant inlet manifold, while a bleed valve (130) is in fluid communication with the coolant exhaust conduit and a source of gas. Operation of the bleed valve enables venting of the coolant from the coolant channels, and through a shut down conduit (124). An increased pressure differential between the coolant and reactant gases forces water out of the pores in the electrode substrates (107,109). An ejector (250) prevents air form inhibiting the pump. Pulsed air is blown (238,239,243,245) through the coolant channels to remove more water.

摘要翻译： 电池堆组件（102）冷却剂系统包括与冷却剂排气歧管（108）和冷却剂泵（112）流体连通的冷却剂排放导管（110）。 冷却剂入口管道（120）能够将冷却剂输送到冷却剂入口歧管。 冷却剂系统还包括与冷却剂排出歧管和冷却剂入口歧管流体连通的旁通管道（132），而排放阀（130）与冷却剂排放管道和气体源流体连通。 泄放阀的操作使冷却剂从冷却剂通道排出，并通过关闭导管（124）。 冷却剂和反应气体之间的增加的压差迫使水从电极基板（107,109）中的孔隙中流出。 喷射器（250）防止空气形式阻止泵。 脉冲空气通过冷却剂通道吹出（238,239,243,245）以除去更多的水。