-
公开(公告)号：US20110117469A1
公开(公告)日：2011-05-19
申请号：US12736955
申请日：2008-07-09
CPC分类号： H01M8/0271 , H01M8/0267 , H01M8/0276 , H01M8/028 , H01M8/0284 , H01M8/0286 , H01M8/04089 , H01M8/04197 , H01M8/04246 , H01M8/2405 , H01M8/2484 , Y02E60/50
摘要： The oxidant inlets of the reactant gas flow field grooves (41) of a fuel cell (11) which suffers a crossover between the fuel and oxidant flow fields, due to a leak in the seals, the maxtrix or the membrane of the fuel cell, are blocked with a liquid (50) which cures in place, hot glue, two-part epoxy, or fluoroelastomers. This prevents heating as a result of combusting fuel with oxygen near the site, which avoids excessive heating and damaging of successive fuel cells. As a result, a fuel cell power plant (8) can continue to operate with only a minor loss of voltage and power, thereby avoiding the need to tear down the stack by loosening the tie-bolts. Voltage and hydrogen levels may be used to detect the crossover. The particular cell (11) with the leak can be determined by voltage or hydrogen monitoring, or by immersing the stack in a liquid while applying gas to the fuel inlet of the stack.
摘要翻译： 燃料电池（11）的反应气体流场槽（41）的氧化剂入口由于燃料电池的密封件，最大或者膜的泄漏而在燃料和氧化剂流场之间产生交叉， 被固化的液体（50）封闭，热胶，两部分环氧树脂或含氟弹性体。 这可以防止由于在现场附近的氧气燃烧燃料而导致的加热，这避免了过度的加热和连续的燃料电池的损坏。 结果，燃料电池发电厂（8）可以继续工作，只有轻微的电压和功率损失，从而避免了通过松开连接螺栓来拆下堆叠的需要。 电压和氢气水平可用于检测交叉。 具有泄漏的特定电池（11）可以通过电压或氢气监测来确定，或者通过将烟囱浸入液体中同时将气体施加到堆叠的燃料入口来确定。
-
公开(公告)号：US09065126B2
公开(公告)日：2015-06-23
申请号：US12736955
申请日：2008-07-09
CPC分类号： H01M8/0271 , H01M8/0267 , H01M8/0276 , H01M8/028 , H01M8/0284 , H01M8/0286 , H01M8/04089 , H01M8/04197 , H01M8/04246 , H01M8/2405 , H01M8/2484 , Y02E60/50
摘要： The oxidant inlets of the reactant gas flow field grooves (41) of a fuel cell (11) which suffers a crossover between the fuel and oxidant flow fields, due to a leak in the seals, the maxtrix or the membrane of the fuel cell, are blocked with a liquid (50) which cures in place, hot glue, two-part epoxy, or fluoroelastomers. This prevents heating as a result of combusting fuel with oxygen near the site, which avoids excessive heating and damaging of successive fuel cells. As a result, a fuel cell power plant (8) can continue to operate with only a minor loss of voltage and power, thereby avoiding the need to tear down the stack by loosening the tie-bolts. Voltage and hydrogen levels may be used to detect the crossover. The particular cell (11) with the leak can be determined by voltage or hydrogen monitoring, or by immersing the stack in a liquid while applying gas to the fuel inlet of the stack.
摘要翻译： 燃料电池（11）的反应气体流场槽（41）的氧化剂入口由于燃料电池的密封件，最大或者膜的泄漏而在燃料和氧化剂流场之间产生交叉， 被固化的液体（50）封闭，热胶，两部分环氧树脂或含氟弹性体。 这可以防止由于在现场附近的氧气燃烧燃料而导致的加热，这避免了过度的加热和连续的燃料电池的损坏。 结果，燃料电池发电厂（8）可以继续工作，只有轻微的电压和功率损失，从而避免了通过松开连接螺栓来拆下堆叠的需要。 电压和氢气水平可用于检测交叉。 具有泄漏的特定电池（11）可以通过电压或氢气监测来确定，或者通过将烟囱浸入液体中同时将气体施加到堆叠的燃料入口来确定。
-
公开(公告)号：US09318759B2
公开(公告)日：2016-04-19
申请号：US14363567
申请日：2011-12-09
CPC分类号： H01M8/04619 , H01M8/04365 , H01M8/0438 , H01M8/04529 , H01M8/04559 , H01M8/04611 , H01M8/04731 , H01M8/04753 , H01M8/04828 , H01M8/0485 , H01M8/0488 , H01M8/0494 , H01M16/003 , H01M16/006 , H01M2250/402 , Y02B90/12 , Y02E60/50
摘要： An exemplary method includes of operating a fuel cell at a first power output level that includes a plurality of operation parameters. Each operation parameter has a value to satisfy a first power demand. A change between the first power demand and a second power demand is determined. At least a first one of the operation parameters is maintained at a value corresponding to the first power output level or at an intermediate value while at least a second one of the operation parameters is changed to a value corresponding to a second power output level to satisfy the second power demand. The first operation parameter is delayed from changing to a value corresponding to the second power output level until a predetermined criterion is met.
摘要翻译： 一种示例性方法包括在包括多个操作参数的第一功率输出水平下操作燃料电池。 每个操作参数具有满足第一功率需求的值。 确定第一功率需求和第二功率需求之间的变化。 操作参数中的至少第一个被维持在与第一功率输出电平或中间值对应的值，而至少第二个操作参数被改变为对应于第二功率输出电平的值以满足 第二个电力需求。 第一操作参数从改变延迟到对应于第二功率输出电平的值，直到满足预定标准。
-
公开(公告)号：US20110020727A1
公开(公告)日：2011-01-27
申请号：US12863159
申请日：2008-01-03
申请人： Sergei F. Burlatsky , Ned E. Cipollini , David A. Condit , Thomas H. Madden , Sathya Motupally , Lesia V. Protsailo , Timothy W. Patterson , Lei Chen , Mallika Gummalla
发明人： Sergei F. Burlatsky , Ned E. Cipollini , David A. Condit , Thomas H. Madden , Sathya Motupally , Lesia V. Protsailo , Timothy W. Patterson , Lei Chen , Mallika Gummalla
IPC分类号： H01M8/10
CPC分类号： H01M8/04291 , H01M4/92 , H01M4/921 , H01M4/926 , H01M8/1004 , H01M8/1018 , H01M2008/1095 , H01M2250/10 , H01M2250/20 , H01M2300/0082 , Y02B90/14 , Y02E60/521 , Y02T90/32
摘要： A membrane electrode assembly is provided which includes an anode; a cathode; a membrane between the anode and the cathode; and a protective layer between the membrane and at least one electrode of the anode and the cathode, the protective layer having a layer of ionomer material containing a catalyst, the layer having a porosity of between 0 and 10%, an ionomer content of between 50 and 80% vol., a catalyst content of between 10 and 50% vol., and an electrical connectivity between catalyst particles of between 35 and 75%. A configuration using a precipitation layer to prevent migration of catalyst ions is also provided.
摘要翻译： 提供一种膜电极组件，其包括阳极; 阴极 阳极和阴极之间的膜; 以及在所述膜和所述阳极和所述阴极的至少一个电极之间的保护层，所述保护层具有包含催化剂的离聚物材料层，所述层的孔隙率为0至10％，离聚物含量为50 和80体积％，催化剂含量为10至50体积％，催化剂颗粒之间的电连接率为35至75％。 还提供了使用沉淀层以防止催化剂离子迁移的构造。
-
5.发明授权Start up system and method for a fuel cell power plant using a cathode electrode fuel purge 有权启动使用阴极电极燃料吹扫的燃料电池发电厂的系统和方法公开(公告)号：US06838199B2
公开(公告)日：2005-01-04
申请号：US10329874
申请日：2002-12-26
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：US09876238B2
公开(公告)日：2018-01-23
申请号：US13489452
申请日：2012-06-05
申请人： Jonathan Daniel O'Neill , Timothy W. Patterson , Christopher John Carnevale , Roopnarine Sukhram
发明人： Jonathan Daniel O'Neill , Timothy W. Patterson , Christopher John Carnevale , Roopnarine Sukhram
IPC分类号： H01M8/0265 , H01M8/026 , H01M8/0267 , H01M8/04029
CPC分类号： H01M8/0265 , H01M8/026 , H01M8/0267 , H01M8/04029
摘要： An example fuel cell assembly includes a plate having channels configured to facilitate movement of a fuel cell fluid near an area of active flow of fuel cell. The channels include portions having a varying depth that extend laterally outside of the area of active flow.
-
7.发明申请公开(公告)号：US20150214558A1
公开(公告)日：2015-07-30
申请号：US14405136
申请日：2012-06-05
CPC分类号： H01M8/0265 , H01M8/0247 , H01M8/0258 , H01M8/026 , H01M8/0267 , H01M8/0271 , H01M8/0273 , H01M8/04007 , H01M8/04082 , H01M8/242
摘要： An exemplary fuel cell component includes a generally planar body having a total area defined by a length and width of the body. A first portion of the total area is occupied by a first fuel cell features that renders the first portion unusable for at least one fuel cell function. A second portion of the total area is occupied by a second fuel cell feature that renders the second portion unusable for the fuel cell function. A third portion of the total area is considered an active area of the component that is useful for the fuel cell function. An aspect ratio of the length to the width of the generally planar body is dependent on a dimension of the first portion and a dimension of the second portion.
摘要翻译： 示例性的燃料电池部件包括具有由主体的长度和宽度限定的总面积的大致平面的主体。 总面积的第一部分被第一燃料电池特征占据，使第一部分不能用于至少一个燃料电池功能。 总面积的第二部分被第二燃料电池特征占据，使第二部分不能用于燃料电池功能。 总面积的第三部分被认为是对燃料电池功能有用的部件的有效面积。 长度与大体平面体的宽度的长宽比取决于第一部分的尺寸和第二部分的尺寸。
-
公开(公告)号：US09023551B2
公开(公告)日：2015-05-05
申请号：US12863159
申请日：2008-01-03
申请人： Sergei F. Burlatsky , Ned E. Cipollini , David A. Condit , Thomas H. Madden , Sathya Motupally , Lesia V. Protsailo , Timothy W. Patterson , Lei Chen , Mallika Gummalla
发明人： Sergei F. Burlatsky , Ned E. Cipollini , David A. Condit , Thomas H. Madden , Sathya Motupally , Lesia V. Protsailo , Timothy W. Patterson , Lei Chen , Mallika Gummalla
CPC分类号： H01M8/04291 , H01M4/92 , H01M4/921 , H01M4/926 , H01M8/1004 , H01M8/1018 , H01M2008/1095 , H01M2250/10 , H01M2250/20 , H01M2300/0082 , Y02B90/14 , Y02E60/521 , Y02T90/32
摘要： A membrane electrode assembly is provided which includes an anode; a cathode; a membrane between the anode and the cathode; and a protective layer between the membrane and at least one electrode of the anode and the cathode, the protective layer having a layer of ionomer material containing a catalyst, the layer having a porosity of between 0 and 10%, an ionomer content of between 50 and 80% vol., a catalyst content of between 10 and 50% vol., and an electrical connectivity between catalyst particles of between 35 and 75%. A configuration using a precipitation layer to prevent migration of catalyst ions is also provided.
摘要翻译： 提供一种膜电极组件，其包括阳极; 阴极 阳极和阴极之间的膜; 以及在所述膜和所述阳极和所述阴极的至少一个电极之间的保护层，所述保护层具有包含催化剂的离聚物材料层，所述层的孔隙率为0至10％，离聚物含量为50 和80体积％，催化剂含量为10至50体积％，催化剂颗粒之间的电连接率为35至75％。 还提供了使用沉淀层以防止催化剂离子迁移的构造。
-
公开(公告)号：US20130177830A1
公开(公告)日：2013-07-11
申请号：US13825995
申请日：2010-10-29
CPC分类号： C09K3/10 , C09K3/1009 , C09K2200/0642 , H01M8/0276 , H01M8/0284 , H01M8/0286 , H01M8/2415 , H01M8/2485 , H01M2008/1095
摘要： An example seal assembly includes a first seal that is configured to be placed between a fuel cell manifold and a fuel cell stack. The first seal establishes a recessed area within a side of the first seal that faces the fuel cell stack. The fuel cell seal assembly further includes a second seal that is configured to be placed between the first seal and the fuel cell stack within the recessed area. An example method of sealing a fuel cell interface includes holding a first seal within a groove established within a manifold and holding a second seal within a recessed area established within the second seal. The method limits flow of a fuel cell fluid using a first seal and the second seal.
摘要翻译： 示例性密封组件包括构造成放置在燃料电池歧管和燃料电池堆之间的第一密封件。 第一密封件在面向燃料电池堆的第一密封件的侧面内形成凹陷区域。 燃料电池密封组件还包括第二密封件，其被配置为放置在凹陷区域内的第一密封件和燃料电池堆之间。 密封燃料电池接口的示例性方法包括将第一密封件保持在建立在歧管内的凹槽内，并且将第二密封件保持在建立在第二密封件内的凹陷区域内。 该方法使用第一密封件和第二密封件来限制燃料电池流体的流动。
-
10.发明授权公开(公告)号：US08057847B2
公开(公告)日：2011-11-15
申请号：US10698659
申请日：2003-10-31
申请人： James A. Leistra , Ned E. Cipollini , Wayde R. Schmidt , Jared B. Hertzberg , Chi H. Paik , Thomas D. Jarvi , Timothy W. Patterson , Sonia Tulyani
发明人： James A. Leistra , Ned E. Cipollini , Wayde R. Schmidt , Jared B. Hertzberg , Chi H. Paik , Thomas D. Jarvi , Timothy W. Patterson , Sonia Tulyani
IPC分类号： B05D5/12
CPC分类号： H01M8/1004 , H01M4/8605 , H01M4/90 , H01M4/9075 , H01M4/92 , H01M4/925 , H01M8/0662 , H01M2004/8684 , Y02P70/56
摘要： A method for making a membrane electrode assembly includes the steps of providing a membrane electrode assembly including an anode including a hydrogen oxidation catalyst; a cathode; a membrane disposed between the anode and the cathode; and depositing a peroxide decomposition catalyst in at least one position selected from the group consisting of the anode, the cathode, a layer between the anode and the membrane and a layer between the cathode and the membrane wherein the peroxide decomposition catalyst has selectivity when exposed to hydrogen peroxide toward reactions which form benign products from the hydrogen peroxide. The peroxide decomposition catalyst can also be positioned within the membrane. Also disclosed is a power-generating fuel cell system including such a membrane electrode assembly, and a process for operating such a fuel cell system.
摘要翻译： 制造膜电极组件的方法包括以下步骤：提供包括包含氢氧化催化剂的阳极的膜电极组件; 阴极 设置在阳极和阴极之间的膜; 以及在选自阳极，阴极，阳极和膜之间的层以及阴极和膜之间的层中的至少一个位置沉积过氧化物分解催化剂，其中过氧化物分解催化剂暴露于阴极和膜之间具有选择性 过氧化氢反应形成来自过氧化氢的良性产物。 过氧化物分解催化剂也可以位于膜内。 还公开了包括这种膜电极组件的发电燃料电池系统和用于操作这种燃料电池系统的方法。
-
-
-
-
-
-
-
-
-
搜索结果
25 条记录 (耗时 0.028 秒)
