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1. 发明申请

US20120115058A1 MITIGATING ELECTRODE EROSION IN HIGH TEMPERATURE PEM FUEL CELL 有权
标题翻译：在高温PEM燃料电池中减轻电极腐蚀
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。

2. 发明授权

US09917314B2 Mitigating electrode erosion in high temperature PEM fuel cell 有权
公开(公告)号：US09917314B2
公开(公告)日：2018-03-13
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 , H01M8/0432 , H01M8/04537 , H01M8/04746 , H01M8/04858 , H01M8/1018
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.

3. 发明授权

US08728684B2 Reduced axial pressure in fuel cell stacks 有权
标题翻译：降低燃料电池堆中的轴向压力
公开(公告)号：US08728684B2
公开(公告)日：2014-05-20
申请号：US12737106
申请日：2008-09-26
申请人： Carl A. Reiser , Paravastu Badrinarayanan
发明人： Carl A. Reiser , Paravastu Badrinarayanan
IPC分类号： H01M8/00 , H01M8/24
CPC分类号： H01M8/248 , H01M2008/1095 , H01M2008/147 , Y02E60/526
摘要： Fuel cell stacks (20) include fuel cells (22) in which internal pressure on membranes (28), caused by adjacent cross points (19) or ribs (9, 17) of gas flow field plates (7, 33) is reduced by lowering the axial load holding the stack together, after an initial high axial load, that establishes minimal possible internal resistance, has been held for between a few hours and 20 hours. The need for robust axial load restraints is also reduced. Pressure of cross points (19) can also be spread by stiffening components or adding stiffeners.
摘要翻译：燃料电池堆（20）包括燃料电池（22），其中由气体流场板（7,33）的相邻交叉点（19）或肋（9,17）引起的膜（28）上的内压由在初始高轴向载荷（建立最小可能的内阻）之后，将保持堆叠的轴向载荷降低几个小时至20小时。对于强大的轴向载荷限制的需求也减少了。交叉点（19）的压力也可以通过加强部件或加强筋来扩展。

4. 发明申请

US20110262830A1 Reduced Axial Pressure in Fuel Cell Stacks 有权
标题翻译：燃料电池堆中降低的轴向压力
公开(公告)号：US20110262830A1
公开(公告)日：2011-10-27
申请号：US12737106
申请日：2008-09-26
申请人： Carl A. Reiser , Paravastu Badrinarayanan
发明人： Carl A. Reiser , Paravastu Badrinarayanan
IPC分类号： H01M8/00 , H01M8/24
CPC分类号： H01M8/248 , H01M2008/1095 , H01M2008/147 , Y02E60/526
摘要： Fuel cell stacks (20) include fuel cells (22) in which internal pressure on membranes (28), caused by adjacent cross points (19) or ribs (9, 17) of gas flow field plates (7, 33) is reduced by lowering the axial load holding the stack together, after an initial high axial load, that establishes minimal possible internal resistance, has been held for between a few hours and 20 hours. The need for robust axial load restraints is also reduced. Pressure of cross points (19) can also be spread by stiffening components or adding stiffeners.
摘要翻译：燃料电池堆（20）包括燃料电池（22），其中由气体流场板（7,33）的相邻交叉点（19）或肋（9,17）引起的膜（28）上的内压由在初始高轴向载荷（建立最小可能的内阻）之后，将保持堆叠的轴向载荷降低几个小时至20小时。对于强大的轴向载荷限制的需求也减少了。交叉点（19）的压力也可以通过加强部件或加强筋来扩展。

5. 发明授权

US09570763B2 Hybrid bipolar plate for evaporatively cooled fuel cells 有权
标题翻译：用于蒸发冷却燃料电池的混合双极板
公开(公告)号：US09570763B2
公开(公告)日：2017-02-14
申请号：US13261678
申请日：2010-12-23
申请人： Christopher John Carnevale , Timothy W. Patterson, Jr. , Robert M. Darling , Paravastu Badrinarayanan , Michael L. Perry
发明人： Christopher John Carnevale , Timothy W. Patterson, Jr. , Robert M. Darling , Paravastu Badrinarayanan , Michael L. Perry
IPC分类号： H01M8/04 , H01M8/02 , H01M8/10
CPC分类号： H01M8/04029 , H01M8/0258 , H01M8/0267 , H01M8/04164 , H01M8/04291 , H01M8/1004 , H01M8/241 , H01M8/2457 , H01M2008/1095 , Y02E60/521
摘要： A fuel cell power plant (36) has vertical fuel cells (102) each sharing a half of a hybrid separator plate (100) which includes a solid fuel flow plate (105) having horizontal fuel flow channels (106) on one surface and coolant channels (108) on an upper portion of the opposite surface, bonded to a plain rear side of a porous, hydrophilic oxidant flow field plate (115) having vertical oxidant flow channels (118). Coolant permeates through the upper portion of the porous, hydrophilic oxidant flow field plates and enters the oxidant flow channels, where it evaporates as the water trickles downward through the oxidant flow field channels, thereby cooling the fuel cell.
摘要翻译：燃料电池发电厂（36）具有垂直燃料电池（102），每个燃料电池共享一个混合隔板（100）的一半，该混合隔板包括在一个表面上具有水平燃料流动通道（106）的固体燃料流动板（105）和冷却剂通道（108）在相对表面的上部结合到具有垂直氧化剂流动通道（118）的多孔亲水氧化剂流场板（115）的平坦的后侧。冷却剂渗透通过多孔亲水氧化剂流场板的上部并进入氧化剂流动通道，当水向下流过氧化剂流场通道时，其蒸发，从而冷却燃料电池。

6. 发明申请

US20130260274A1 Hybrid Bipolar Plate for Evaporatively Cooled Fuel Cells 有权
标题翻译：用于蒸发冷却的燃料电池的混合双极板
公开(公告)号：US20130260274A1
公开(公告)日：2013-10-03
申请号：US13261678
申请日：2010-12-23
申请人： Christopher John Carnevale , Timothy W. Patterson, JR. , Robert M. Darling , Paravastu Badrinarayanan , Michael L. Perry
发明人： Christopher John Carnevale , Timothy W. Patterson, JR. , Robert M. Darling , Paravastu Badrinarayanan , Michael L. Perry
IPC分类号： H01M8/04
CPC分类号： H01M8/04029 , H01M8/0258 , H01M8/0267 , H01M8/04164 , H01M8/04291 , H01M8/1004 , H01M8/241 , H01M8/2457 , H01M2008/1095 , Y02E60/521
摘要： A fuel cell power plant (36) has vertical fuel cells (102) each sharing a half of a hybrid separator plate (100) which includes a solid fuel flow plate (105) having horizontal fuel flow channels (106) on one surface and coolant channels (108) on an upper portion of the opposite surface, bonded to a plain rear side of a porous, hydrophilic oxidant flow field plate (115) having vertical oxidant flow channels (118). Coolant permeates through the upper portion of the porous, hydrophilic oxidant flow field plates and enters the oxidant flow channels, where it evaporates as the water trickles downward through the oxidant flow field channels, thereby cooling the fuel cell.
摘要翻译：燃料电池发电厂（36）具有垂直燃料电池（102），每个燃料电池共享一个混合隔板（100）的一半，该混合隔板包括在一个表面上具有水平燃料流动通道（106）的固体燃料流动板（105）和冷却剂通道（108）在相对表面的上部结合到具有垂直氧化剂流动通道（118）的多孔亲水氧化剂流场板（115）的平坦的后侧。冷却剂渗透通过多孔亲水氧化剂流场板的上部并进入氧化剂流动通道，当水向下流过氧化剂流场通道时，其蒸发，从而冷却燃料电池。

7. 发明申请

US20120202134A1 REDUCED THERMAL CONDUCTIVITY IN PEM FUEL CELL GAS DIFFUSION LAYERS 审中-公开
标题翻译：在PEM燃料电池气体扩散层中降低热导率
公开(公告)号：US20120202134A1
公开(公告)日：2012-08-09
申请号：US13261250
申请日：2009-10-08
申请人： Paravastu Badrinarayanan , Robert M. Darling , Jonathan D. O'Neill
发明人： Paravastu Badrinarayanan , Robert M. Darling , Jonathan D. O'Neill
IPC分类号： H01M8/10
CPC分类号： H01M8/0202 , H01M2008/1095
摘要： A fuel cell for a fuel cell power plant having gas diffusion layers which do not have microporous layers, includes a PEM (9), a cathode comprising at least a cathode catalyst (10) and a gas diffusion layer (17) on one side of the PEM, and an anode comprising at least an anode catalyst (11) and a gas diffusion layer (14) on the opposite side of the PEM, and a porous water transport plate having reactant gas flow field channels (31, 32) (21, 28) adjacent to each of said support substrates as well as water flow channels (22) in at least one of said water transport plates. The thermal conductivity of the cathode and/or the anode gas dif- fusion layers is less than about one-quarter of the thermal conductivity of conventional gas diffusion layers, less than about 0.25 W/m/K, to promote flow of water from the cathodes to the anodes and to the adjacent water transport plates, during start-up at normal ambient temperatures (lower than normal PEM fuel cell operating temperatures).
摘要翻译：一种具有不具有微孔层的气体扩散层的燃料电池发电厂的燃料电池，包括PEM（9），至少包含阴极催化剂（10）的阴极和在一侧的气体扩散层（17）所述PEM和在所述PEM相反侧的至少包含阳极催化剂（11）和气体扩散层（14）的阳极和具有反应气体流场通道（31,32）（21,32）的多孔水输送板，28），以及至少一个所述水输送板中的水流通道（22）。阴极和/或阳极气体扩散层的热导率小于常规气体扩散层的热传导率的约四分之一，小于约0.25W / m / K，以促进水从在正常环境温度（低于正常的PEM燃料电池工作温度）的启动期间，阳极和相邻的水输送板的阴极。

8. 发明授权

US09362578B2 Fuel cell power plant operating system and method for use in sub-freezing ambient conditions 有权
标题翻译：燃料电池发电厂操作系统和在低温环境条件下使用的方法
公开(公告)号：US09362578B2
公开(公告)日：2016-06-07
申请号：US13884039
申请日：2010-12-07
申请人： Timothy Patterson , Paravastu Badrinarayanan
发明人： Timothy Patterson , Paravastu Badrinarayanan
IPC分类号： H01M8/04
CPC分类号： H01M8/04253 , H01M8/0432 , H01M8/04753 , H01M2250/40 , Y02E60/50 , Y02E60/56
摘要： The fuel cell power plant operating system (10) includes an on/off switching device by-pass circuit (60) to sustain operation of a fuel cell (12) whenever the fuel cell (12) on/off switching device (58) is turned off while a fuel cell operating temperature is below a predetermined freeze-safe operating temperature. The by-pass circuit (60) operates the fuel cell (12) until the fuel cell (12) temperature reaches or exceeds the freeze-safe temperature to thereby prevent fuel cell (12) product water from becoming ice in and adjacent fuel cell catalysts (26, 40).
摘要翻译：燃料电池发电厂操作系统（10）包括每当燃料电池（12）通/断切换装置（58）为...时，燃料电池（12）的运行来维持燃料电池（12）的操作的开关装置旁通电路（60）当燃料电池工作温度低于预定的冷冻安全工作温度时关闭。旁路回路（60）操作燃料电池（12），直到燃料电池（12）温度达到或超过冷冻安全温度，从而防止燃料电池（12）产生的水在燃料电池催化剂和邻近的燃料电池催化剂（26，40）。

9. 发明申请

US20120168975A1 METHOD FOR PROCESSING A POROUS ARTICLE 有权
标题翻译：一种处理多孔文章的方法
公开(公告)号：US20120168975A1
公开(公告)日：2012-07-05
申请号：US13395746
申请日：2009-11-23
申请人： Michael L. Perry , Paravastu Badrinarayanan , Glenn Michael Allen , Steven W. Gronda
发明人： Michael L. Perry , Paravastu Badrinarayanan , Glenn Michael Allen , Steven W. Gronda
IPC分类号： C01B31/00 , B29C43/52
CPC分类号： B29C43/021 , B29C33/04 , B29C43/52 , H01M8/0234 , H01M8/0243 , H01M8/04126 , H01M8/04156 , Y02E60/50
摘要： A method of processing a porous article includes distributing a blended material that includes an electrically conductive material and a binder into a cavity of a mold that is at a temperature below a curing temperature of the binder. The electrically conductive material is formed from particles of the electrically conductive material that have a size distribution such that 10 vol % of the particles are less than 12 micrometers in diameter, 50 vol % of the particles are less than 27 micrometers in diameter, and 90 vol % of the particles are less than 53 micrometers. The blended material is compressed within the cavity under a molding pressure, and the mold is heated to a curing temperature of the binder to form a molded article.
摘要翻译：一种处理多孔制品的方法包括将包含导电材料和粘合剂的混合材料分散到模具的空腔内，该模具的温度低于粘合剂的固化温度。导电材料由导电材料的颗粒形成，其尺寸分布使得10体积％的颗粒直径小于12微米，50体积％的颗粒直径小于27微米，并且90 体积％的颗粒小于53微米。混合材料在成型压力下在空腔内压缩，并将模具加热至粘合剂的固化温度以形成模塑制品。

10. 发明申请

US20120003551A1 FUEL CELL WITH PURGE MANIFOLD 有权
标题翻译：燃料电池与灌注歧管
公开(公告)号：US20120003551A1
公开(公告)日：2012-01-05
申请号：US13256326
申请日：2009-03-18
申请人： Paravastu Badrinarayanan , Kazuki Amemiya
发明人： Paravastu Badrinarayanan , Kazuki Amemiya
IPC分类号： H01M8/06 , H01M8/04
CPC分类号： H01M8/0232 , H01M8/0267 , H01M8/04179 , H01M8/04223 , H01M8/04225 , H01M8/04228 , H01M8/2483
摘要： A fuel cell includes an electrode assembly having an electrolyte between an anode and a cathode for generating an electric current and byproduct water. A porous plate is located adjacent to the electrode and includes reactant gas channels for delivering a reactant gas to the electrode assembly. A separator plate is located adjacent the porous plate such that the porous plate is between the electrode assembly and the separator plate. The separator plate includes a reactant gas inlet manifold and a reactant gas outlet manifold in fluid connection with the reactant gas channels, and a purge manifold in fluid connection with the porous plate such that limiting flow of the reactant gas from the reactant gas outlet manifold and opening the purge manifold under a pressure of the reactant gas in the reactant gas channels drives the byproduct water toward the purge manifold for removal from the fuel cell.
摘要翻译：燃料电池包括在阳极和阴极之间具有电解质以产生电流和副产物水的电极组件。多孔板位于电极附近，并且包括用于将反应气体输送到电极组件的反应气体通道。分隔板位于多孔板附近，使得多孔板位于电极组件和分隔板之间。隔板包括反应物气体入口歧管和与反应物气体通道流体连接的反应物气体出口歧管，以及与多孔板流体连接的净化歧管，从而限制反应气体从反应气体出口歧管和在反应气体通道中的反应气体的压力下打开吹扫歧管，驱动副产物水朝向清洗歧管，以从燃料电池中移出。

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