公开(公告)号：US08524408B2

公开(公告)日：2013-09-03

申请号：US12567438

申请日：2009-09-25

申请人： Yeh-Hung Lai ,  Pinkhas A. Rapaport ,  Amit Nayar

发明人： Yeh-Hung Lai ,  Pinkhas A. Rapaport ,  Amit Nayar

IPC分类号： H01M8/04 ,  H01M8/02

CPC分类号： H01M8/04552 ,  H01M8/04582 ,  H01M8/04641 ,  H01M8/0494 ,  H01M2008/1095

摘要： A method for preventing a fuel cell voltage potential reversal including determining a relationship between the cell resistance and the current of a fuel cell stack at which a fuel cell voltage potential reversal will occur, operating the fuel cell stack according to a power demand requested, and determining the maximum cell resistance of the fuel cells in the stack. If the maximum cell resistance exceeds a threshold value for the current at which the fuel cell stack is being operated, the operation of the fuel cell stack is restricted to prevent the fuel cell voltage potential from reversing.

摘要翻译： 一种用于防止燃料电池电压电位反转的方法，包括确定电池电阻与将发生燃料电池电压电位反转的燃料电池组的电流之间的关系，根据所要求的功率需求来操作燃料电池堆;以及 确定堆叠中的燃料电池的最大电池电阻。 如果最大电池电阻超过用于操作燃料电池堆的电流的阈值，则限制燃料电池堆的操作以防止燃料电池电压电势反转。

公开(公告)号：US20110076581A1

公开(公告)日：2011-03-31

申请号：US12567438

申请日：2009-09-25

申请人： Yeh-Hung Lai ,  Pinkhas A. Rapaport ,  Amit Nayar

发明人： Yeh-Hung Lai ,  Pinkhas A. Rapaport ,  Amit Nayar

IPC分类号： H01M8/04

CPC分类号： H01M8/04552 ,  H01M8/04582 ,  H01M8/04641 ,  H01M8/0494 ,  H01M2008/1095

摘要： A method for preventing a fuel cell voltage potential reversal including determining a relationship between the cell resistance and the current of a fuel cell stack at which a fuel cell voltage potential reversal will occur, operating the fuel cell stack according to a power demand requested, and determining the maximum cell resistance of the fuel cells in the stack. If the maximum cell resistance exceeds a threshold value for the current at which the fuel cell stack is being operated, the operation of the fuel cell stack is restricted to prevent the fuel cell voltage potential from reversing.

摘要翻译： 一种用于防止燃料电池电压电位反转的方法，包括确定电池电阻与将发生燃料电池电压电位反转的燃料电池组的电流之间的关系，根据所要求的功率需求来操作燃料电池堆;以及 确定堆叠中的燃料电池的最大电池电阻。 如果最大电池电阻超过用于操作燃料电池堆的电流的阈值，则限制燃料电池堆的操作以防止燃料电池电压电势反转。

公开(公告)号：US20080299418A1

公开(公告)日：2008-12-04

申请号：US11757843

申请日：2007-06-04

申请人： Yeh-Hung Lai ,  Pinkhas A. Rapaport ,  Po-Ya Abel Chuang ,  Wenbin Gu

发明人： Yeh-Hung Lai ,  Pinkhas A. Rapaport ,  Po-Ya Abel Chuang ,  Wenbin Gu

IPC分类号： H01M8/00

CPC分类号： H01M8/04201 ,  H01M8/023

摘要： A fuel cell stack that includes a gas diffusion media for the end cells in the stack that has less of an intrusion into the flow field channels of the end cells that the other cells, so as to increase the flow rate through the flow channels in the end cells relative to the flow rate through the flow channels in the other cells. A different diffusion media can be used in the end cells than the nominal cells, where the end cell diffusion media has less of a channel intrusion as a result of diffusion media characteristics. Also, the same diffusion media could be used in the end cells as the nominal cells, but the end cell diffusion media layers could be thinner than the nominal cell diffusion media layers. Further, a higher amount of pre-compression can be used for the diffusion media in the end cells.

摘要翻译： 一种燃料电池堆，其包括用于堆叠中的末端电池的气体扩散介质，其具有较少侵入到其他电池的端电池的流场通道，以便增加通过其中的流动通道的流速 相对于通过其他电池中的流动通道的流速来说，终端电池。 在末端电池中可以使用不同的扩散介质，而不是标称电池，其中末端电池扩散介质由于扩散介质特性而具有较少的通道入侵。 此外，相同的扩散介质可以在末端电池中用作标称电池，但是终端电池扩散介质层可以比标称电池扩散介质层更薄。 此外，更高量的预压缩可以用于端电池中的扩散介质。

公开(公告)号：US20080038594A1

公开(公告)日：2008-02-14

申请号：US11464226

申请日：2006-08-14

申请人： Yeh-Hung Lai ,  Pinkhas A. Rapaport ,  John C. Fagley

发明人： Yeh-Hung Lai ,  Pinkhas A. Rapaport ,  John C. Fagley

IPC分类号： H01M8/04 ,  H01M8/24 ,  H01M8/10

CPC分类号： H01M8/04126 ,  H01M8/04313 ,  H01M8/04529 ,  H01M8/0485 ,  H01M8/04992 ,  H01M8/248 ,  H01M2008/1095

摘要： An electrochemical conversion assembly (10) is provided comprising a plurality of electrochemical conversion cells arranged in a conductively coupled fuel cell stack (20), a condition sensor (30, 40) operatively coupled to the fuel cell stack (20), and a programmable controller operatively coupled to the condition sensor and the fuel cell stack. The condition sensor is configured to measure a rate of change of hydration in the proton exchange membrane and either the condition sensor or the programmable controller is configured to generate a signal indicative of the measured rate of change of hydration. The programmable controller is configured to facilitate control of at least one operating parameter of the electrochemical conversion assembly by monitoring the signal indicative of the measured rate of change of hydration. The condition sensor can be configured to detect a dimensional change or a change in compression of the conductively coupled fuel cell stack as the membrane hydration changes. Additional embodiments are disclosed.

摘要翻译： 提供了电化学转化组件（10），其包括布置在导电耦合的燃料电池堆（20）中的多个电化学转换单元，可操作地耦合到燃料电池堆（20）的状态传感器（30,40）和可编程 控制器可操作地耦合到状态传感器和燃料电池堆。 条件传感器被配置为测量质子交换膜中的水合变化率，条件传感器或可编程控制器被配置为产生指示测量的水合变化率的信号。 可编程控制器被配置为通过监测指示测量的水合变化率的信号来促进对电化学转化组件的至少一个操作参数的控制。 条件传感器可以被配置为当膜水合变化时检测导电耦合燃料电池堆的尺寸变化或压缩变化。 公开了另外的实施例。

公开(公告)号：US08415076B2

公开(公告)日：2013-04-09

申请号：US11272369

申请日：2005-11-10

申请人： Pinkhas A Rapaport ,  Yeh-Hung Lai

发明人： Pinkhas A Rapaport ,  Yeh-Hung Lai

IPC分类号： H01M4/02 ,  H01M4/36 ,  H01M8/00

CPC分类号： H01M8/0234

摘要： A method for reducing the compression set of GDL during the fuel cell operation and a method for reducing the intrusion of the GDL into flow-field channels, both achieved by pre-compression preconditioning the GDL before placing it into the fuel cell. This preconditioning is performed in order to reduce the loss of compression during the life of the stack and the mal-distribution of reactant gases, and ultimately achieve the benefits of higher power output and more stable performance.

摘要翻译： 一种用于在燃料电池操作期间减小GDL的压缩集合的方法以及用于将GDL入侵到流场通道中的方法，其通过在将GDL放入燃料电池之前进行预压缩预处理来实现。 执行该预处理以减少在堆的寿命期间的压缩损失和反应气体的不均匀分布，并且最终实现更高功率输出和更稳定的性能的益处。

公开(公告)号：US07947400B2

公开(公告)日：2011-05-24

申请号：US11464226

申请日：2006-08-14

申请人： Yeh-Hung Lai ,  Pinkhas A. Rapaport ,  John C. Fagey

发明人： Yeh-Hung Lai ,  Pinkhas A. Rapaport ,  John C. Fagey

IPC分类号： H01M8/04 ,  H01M8/10

CPC分类号： H01M8/04126 ,  H01M8/04313 ,  H01M8/04529 ,  H01M8/0485 ,  H01M8/04992 ,  H01M8/248 ,  H01M2008/1095

摘要： An electrochemical conversion assembly (10) is provided comprising a plurality of electrochemical conversion cells arranged in a conductively coupled fuel cell stack (20), a condition sensor (30, 40) operatively coupled to the fuel cell stack (20), and a programmable controller operatively coupled to the condition sensor and the fuel cell stack. The condition sensor is configured to measure a rate of change of hydration in the proton exchange membrane and either the condition sensor or the programmable controller is configured to generate a signal indicative of the measured rate of change of hydration. The programmable controller is configured to facilitate control of at least one operating parameter of the electrochemical conversion assembly by monitoring the signal indicative of the measured rate of change of hydration. The condition sensor can be configured to detect a dimensional change or a change in compression of the conductively coupled fuel cell stack as the membrane hydration changes. Additional embodiments are disclosed.

摘要翻译： 提供了电化学转化组件（10），其包括布置在导电耦合的燃料电池堆（20）中的多个电化学转换单元，可操作地耦合到燃料电池堆（20）的状态传感器（30,40）和可编程 控制器可操作地耦合到状态传感器和燃料电池堆。 条件传感器被配置为测量质子交换膜中的水合变化率，条件传感器或可编程控制器被配置为产生指示测量的水合变化率的信号。 可编程控制器被配置为通过监测指示测量的水合变化率的信号来促进对电化学转化组件的至少一个操作参数的控制。 条件传感器可以被配置为当膜水合变化时检测导电耦合燃料电池堆的尺寸变化或压缩变化。 公开了另外的实施例。

公开(公告)号：US20130011763A1

公开(公告)日：2013-01-10

申请号：US13611059

申请日：2012-09-12

申请人： Jeffrey A. Rock ,  Yeh-Hung Lai ,  Keith E. Newman ,  Gerald W. Fly ,  Alan J. Jacobsen ,  Peter D. Brewer ,  William B. Carter

发明人： Jeffrey A. Rock ,  Yeh-Hung Lai ,  Keith E. Newman ,  Gerald W. Fly ,  Alan J. Jacobsen ,  Peter D. Brewer ,  William B. Carter

IPC分类号： H01M8/10 ,  H01M8/04

CPC分类号： H01M4/64 ,  H01M8/0206 ,  H01M8/0221 ,  H01M8/0223 ,  H01M8/0228 ,  H01M8/0239 ,  H01M8/0256 ,  H01M2008/1095

摘要： A separator plate for a fuel cell is provided, including a substrate having a radiation-cured first flow field layer disposed thereon. A method for fabricating the separator plate is also provided. The method includes the steps of providing a substrate; applying a first radiation-sensitive material to the substrate; placing a first mask between a first radiation source and the first radiation-sensitive material, the first mask having a plurality of substantially radiation-transparent apertures; and exposing the first radiation-sensitive material to a plurality of first radiation beams to form a radiation-cured first flow field layer adjacent the substrate. A fuel cell having the separator plate is also provided.

摘要翻译： 提供了一种用于燃料电池的隔板，包括其上设置有辐射固化的第一流场层的基板。 还提供了制造隔板的方法。 该方法包括提供基板的步骤; 将第一辐射敏感材料施加到所述基底上; 将第一掩模放置在第一辐射源和第一辐射敏感材料之间，第一掩模具有多个基本上辐射透明的孔; 以及将所述第一辐射敏感材料暴露于多个第一辐射束以形成邻近所述衬底的辐射固化的第一流场层。 还提供了具有隔板的燃料电池。

公开(公告)号：US20110195363A1

公开(公告)日：2011-08-11

申请号：US13088792

申请日：2011-04-18

申请人： Jeffrey A. Rock ,  Gerald W. Fly ,  Yeh-Hung Lai ,  Keith E. Newman ,  Alan J. Jacobsen ,  William B. Carter ,  Peter D. Brewer ,  Hung D. Nguyen ,  Joanna A. Kolodziejska

发明人： Jeffrey A. Rock ,  Gerald W. Fly ,  Yeh-Hung Lai ,  Keith E. Newman ,  Alan J. Jacobsen ,  William B. Carter ,  Peter D. Brewer ,  Hung D. Nguyen ,  Joanna A. Kolodziejska

IPC分类号： G03F7/20

CPC分类号： G03F7/095 ,  G03F7/2022

摘要： A method for fabricating a radiation-cured structure is provided. The method includes the steps of providing a first radiation-sensitive material and a second radiation-sensitive material adjacent the first radiation-sensitive material. The first radiation-sensitive material has a first sensitivity. The second radiation-sensitive material has the first sensitivity and a second sensitivity different from the first sensitivity. At least one mask is placed between at least one radiation source and the first and second radiation-sensitive materials. The mask has a plurality of substantially radiation-transparent apertures. The first and second radiation-sensitive materials are then exposed to a plurality of radiation beams through the radiation-transparent apertures in the mask to form a first construct in the first radiation-sensitive material and a second construct in the second radiation-sensitive material. The first construct and the second construct cooperate to form the radiation-cured structure.

摘要翻译： 提供了一种制造辐射固化结构的方法。 该方法包括提供与第一辐射敏感材料相邻的第一辐射敏感材料和第二辐射敏感材料的步骤。 第一种辐射敏感材料具有第一敏感性。 第二辐射敏感材料具有与第一灵敏度不同的第一灵敏度和第二灵敏度。 至少一个掩模被放置在至少一个辐射源与第一和第二辐射敏感材料之间。 掩模具有多个基本上辐射透明的孔。 然后将第一和第二辐射敏感材料暴露于通过掩模中的辐射透明孔的多个辐射束，以在第一辐射敏感材料中形成第一构造体，并在第二辐射敏感材料中形成第二构造体。 第一构造和第二构造协作形成辐射固化结构。

公开(公告)号：US20100159398A1

公开(公告)日：2010-06-24

申请号：US12339308

申请日：2008-12-19

申请人： Jeffrey A. Rock ,  Gerald W. Fly ,  Yeh-Hung Lai ,  Keith E. Newman ,  Alan J. Jacobsen ,  William B. Carter ,  Peter D. Brewer

发明人： Jeffrey A. Rock ,  Gerald W. Fly ,  Yeh-Hung Lai ,  Keith E. Newman ,  Alan J. Jacobsen ,  William B. Carter ,  Peter D. Brewer

IPC分类号： G03F7/20

CPC分类号： G03F7/20 ,  G03F7/095 ,  G03F7/2022

摘要： A method for fabricating a radiation-cured structure is provided. The method includes the steps of providing a first radiation-sensitive material and applying a second radiation-sensitive material to the first radiation-sensitive material. The first radiation-sensitive material has a first sensitivity. The second radiation-sensitive material has a second sensitivity different from the first sensitivity. At least one mask is placed between at least one radiation source and the first and second radiation-sensitive materials. The mask has a plurality of substantially radiation-transparent apertures. The first and second radiation-sensitive materials are then exposed to a plurality of radiation beams through the radiation-transparent apertures in the mask to form a first construct in the first radiation-sensitive material and a second construct in the second radiation-sensitive material. The first construct and the second construct cooperate to form the radiation-cured structure.

摘要翻译： 提供了一种制造辐射固化结构的方法。 该方法包括提供第一辐射敏感材料并将第二辐射敏感材料施加到第一辐射敏感材料的步骤。 第一种辐射敏感材料具有第一敏感性。 第二辐射敏感材料具有与第一灵敏度不同的第二灵敏度。 至少一个掩模被放置在至少一个辐射源与第一和第二辐射敏感材料之间。 掩模具有多个基本上辐射透明的孔。 然后将第一和第二辐射敏感材料暴露于通过掩模中的辐射透明孔的多个辐射束，以在第一辐射敏感材料中形成第一构造体，并在第二辐射敏感材料中形成第二构造体。 第一构造和第二构造协作形成辐射固化结构。

公开(公告)号：US20080305380A1

公开(公告)日：2008-12-11

申请号：US11760219

申请日：2007-06-08

申请人： Benno Andreas-Schott ,  Anthony Chinnici ,  Yeh-Hung Lai ,  Gerald W. Fly

发明人： Benno Andreas-Schott ,  Anthony Chinnici ,  Yeh-Hung Lai ,  Gerald W. Fly

IPC分类号： H01M2/02 ,  H01M8/02

CPC分类号： H01M8/248 ,  H01M2008/1095

摘要： A fuel cell system is provided including a fuel cell stack having a first end and second end. The fuel cell stack includes at least one fuel cell having a membrane-electrode assembly disposed between adjacent gas diffusion layers. The fuel cell system further includes a compression retention system having a plurality of compliant straps adapted to apply a compressive force to the fuel cell stack. The plurality of compliant straps are further adapted to accommodate an expansion of the fuel cell stack during an operation thereof and maintain the compressive force within a desired range.

摘要翻译： 提供一种燃料电池系统，其包括具有第一端和第二端的燃料电池堆。 燃料电池堆包括至少一个具有设置在相邻气体扩散层之间的膜 - 电极组件的燃料电池。 燃料电池系统还包括压缩保持系统，其具有适于向燃料电池堆施加压缩力的多个柔性带。 多个柔性带还适于在其操作期间适应燃料电池堆的膨胀并将压缩力保持在期望的范围内。