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公开(公告)号：US20090220832A1
公开(公告)日：2009-09-03
申请号：US12387515
申请日：2009-05-04
IPC分类号： H01M8/04
CPC分类号： H01M8/04455 , H01M8/04097 , H01M8/04201 , H01M8/04223 , H01M8/04228 , H01M8/04231 , H01M8/04447 , H01M8/04552 , H01M8/04753 , H01M8/04798 , 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 controlled-oxidant flow device (209) near an oxygen source (58′) permits a minimal amount of atmospheric oxygen to enter the power plant (200) during shut down to equalize pressure between ambient atmosphere and the flow paths (24′, 28′) and to keep limited atmospheric oxygen entering the power plant (200) through the device (209) as far as possible from fuel cell flow fields (28′, 42′). A non-leaking hydrogen inlet valve (202), a non-leaking cathode exhaust valve (208), and a combined oxidant and fuel exhaust line (206) also minimize penetration of oxygen into the shut down power plant (200).
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。 在氧源（58'）附近的受控氧化剂流动装置（209）允许最少量的大气氧在关闭期间进入发电厂（200），以使环境大气和流动路径（24'，28）之间的压力相等 '）并且尽可能远离燃料电池流场（28'，42'），通过装置（209）将有限的大气氧气进入发电厂（200）。 不泄漏的氢气入口阀（202），不泄漏的阴极排气阀（208）和组合的氧化剂和燃料排放管线（206）还使氧气进入关闭发电厂（200）的渗透最小化。
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公开(公告)号：US08808934B2
公开(公告)日：2014-08-19
申请号：US12998152
申请日：2008-10-03
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。
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公开(公告)号：US08142950B2
公开(公告)日：2012-03-27
申请号：US12387515
申请日：2009-05-04
CPC分类号： H01M8/04455 , H01M8/04097 , H01M8/04201 , H01M8/04223 , H01M8/04228 , H01M8/04231 , H01M8/04447 , H01M8/04552 , H01M8/04753 , H01M8/04798 , 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 controlled-oxidant flow device (209) near an oxygen source (58′) permits a minimal amount of atmospheric oxygen to enter the power plant (200) during shut down to equalize pressure between ambient atmosphere and the flow paths (24′, 28′) and to keep limited atmospheric oxygen entering the power plant (200) through the device (209) as far as possible from fuel cell flow fields (28′, 42′). A non-leaking hydrogen inlet valve (202), a non-leaking cathode exhaust valve (208), and a combined oxidant and fuel exhaust line (206) also minimize penetration of oxygen into the shut down power plant (200).
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。 在氧源（58'）附近的受控氧化剂流动装置（209）允许最少量的大气氧在关闭期间进入发电厂（200），以使环境大气和流动路径（24'，28）之间的压力相等 '）并且尽可能远离燃料电池流场（28'，42'），通过装置（209）将有限的大气氧气进入发电厂（200）。 不泄漏的氢气入口阀（202），不泄漏的阴极排气阀（208）和组合的氧化剂和燃料排放管线（206）还使氧气进入关闭发电厂（200）的渗透最小化。
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公开(公告)号：US20110171547A1
公开(公告)日：2011-07-14
申请号：US12998152
申请日：2008-10-03
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）识别空载需求指示（67），利用处理空气鼓风机（35）操作（45）空气循环回路（44-46），并将 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。
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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。
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公开(公告)号：US08277991B2
公开(公告)日：2012-10-02
申请号：US12386950
申请日：2009-04-24
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。
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公开(公告)号：US20120115058A1
公开(公告)日：2012-05-10
申请号：US13261129
申请日：2009-08-28
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。
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8.发明授权PEM fuel cell system with a porous hydrophobic plug for maintaining system back pressure and methods for designing the plug and for designing systems for using the plug 有权PEM燃料电池系统具有用于维持系统背压的多孔疏水塞，以及用于设计插头和设计使用插头的系统的方法公开(公告)号：US07977010B2
公开(公告)日：2011-07-12
申请号：US12799387
申请日：2010-04-23
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
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9.发明申请LIQUID ELECTROLYTE FUEL CELL HAVING HIGH PERMEABILITY WICKING TO RETURN CONDENSED ELECTROLYTE 审中-公开具有高渗透性的液体电解质燃料电池，以便返回冷凝电解液公开(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。
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10.发明申请METHOD FOR MINIMIZING MEMBRANE ELECTRODE DEGRADATION IN A FUEL CELL POWER PLANT 审中-公开在燃料电池电厂中最小化膜电极降解的方法公开(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
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。
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