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    Online estimation of cathode inlet and outlet RH from stack average HFR
    2.
    发明授权
    Online estimation of cathode inlet and outlet RH from stack average HFR 有权
    阴极入口和出口RH在线估计堆叠平均HFR

    公开(公告)号：US09306230B2

    公开(公告)日：2016-04-05

    申请号：US12622212

    申请日：2009-11-19

    申请人： Manish Sinha

    发明人： Manish Sinha

    IPC分类号： G01R27/00 ,  H01M8/04 ,  H01M8/10

    CPC分类号： H01M8/04358 ,  H01M8/04395 ,  H01M8/0441 ,  H01M8/04835 ,  H01M8/04843 ,  H01M8/04952 ,  H01M8/04992 ,  H01M2008/1095 ,  Y02E60/50

    摘要： A method for estimating cathode inlet and cathode outlet relative humidity (RH) of a fuel cell stack. The method uses a model to estimate the high frequency resistance (HFR) of the fuel cell stack based on water specie balance, and also measures stack HFR. The HFR values from the estimated HFR and the measured HFR are compared, and an error between the HFR values is determined. An online regression algorithm is then utilized to minimize the error and the solution of the regression is the RH profile in the stack including the cathode inlet and outlet relative humidities.

    摘要翻译： 一种用于估计燃料电池堆的阴极入口和阴极出口相对湿度（RH）的方法。 该方法使用模型基于水分平衡来估计燃料电池堆的高频电阻（HFR），并且还测量堆HFR。 比较来自估计的HFR和测量的HFR的HFR值，并确定HFR值之间的误差。 然后使用在线回归算法来最小化误差，并且回归的解是包括阴极入口和出口相对湿度的堆叠中的RH轮廓。

    FAST MEA BREAK-IN AND VOLTAGE RECOVERY
    3.
    发明申请
    FAST MEA BREAK-IN AND VOLTAGE RECOVERY 有权
    快速MEA断开和电压恢复

    公开(公告)号：US20130260266A1

    公开(公告)日：2013-10-03

    申请号：US13432725

    申请日：2012-03-28

    申请人： Pinkhas A. Rapaport ,  Aaron J. Blowers ,  James Leistra ,  Balasubramanian Lakshmanan

    发明人： Pinkhas A. Rapaport ,  Aaron J. Blowers ,  James Leistra ,  Balasubramanian Lakshmanan

    IPC分类号： H01M8/04 ,  H01M8/06

    CPC分类号： H01M8/04708 ,  H01M8/04223 ,  H01M8/04365 ,  H01M8/04559 ,  H01M8/04731 ,  H01M8/0488 ,  H01M8/04952 ,  H01M8/241 ,  H01M8/2457 ,  Y02E60/50

    摘要： A system and method for breaking-in and humidifying membrane-electrode-assemblies (MEAs) in a fuel cell stack. The method includes performing voltage cycling and humidification of the MEAs in the stack, including one or more temperature steps wherein current density of the stack is cycled within a predetermined range for each of the one or more temperature steps. The method also includes maintaining a fuel cell stack voltage within a predetermined range, and maintaining anode and cathode reactant flows at an approximate set-point during the current density cycling of the one or more temperature steps to break-in and humidify the MEAs in the stack so that the stack is able to operate at a predetermined threshold for a fuel cell stack voltage output capability.

    摘要翻译： 一种用于在燃料电池堆中分解和加湿膜 - 电极组件（MEA）的系统和方法。 该方法包括对堆叠中的MEA进行电压循环和加湿，包括一个或多个温度步骤，其中堆叠的电流密度在一个或多个温度步骤中的每一个的预定范围内循环。 该方法还包括将燃料电池堆电压维持在预定范围内，并且在一个或多个温度步骤的电流密度循环期间将阳极和阴极反应物流维持在近似设定点，从而在 堆叠，使得堆叠能够在燃料电池堆电压输出能力的预定阈值下操作。

    Fuel cells
    5.
    发明申请
    Fuel cells 审中-公开
    燃料电池

    公开(公告)号：US20040086768A1

    公开(公告)日：2004-05-06

    申请号：US10391547

    申请日：2003-03-17

    发明人： Karen Fleckner ,  Feng Zheng ,  Cynthia Buenviaje ,  Yao Huang ,  Jeff Pedersen ,  David Lim ,  H. Sho Fuji ,  Jeremy Hergesheimer ,  Michael Treiber

    IPC分类号： H01M008/02 ,  H01M008/24 ,  H01M008/10 ,  H01M004/96 ,  H01M004/92 ,  H01M008/04 ,  H01M004/88 ,  B05D005/12

    CPC分类号： B82Y30/00 ,  H01M8/0234 ,  H01M8/0432 ,  H01M8/04388 ,  H01M8/04395 ,  H01M8/04559 ,  H01M8/04589 ,  H01M8/04649 ,  H01M8/04701 ,  H01M8/04753 ,  H01M8/04761 ,  H01M8/0488 ,  H01M8/0491 ,  H01M8/04952 ,  H01M8/04992 ,  H01M8/1004 ,  Y02P70/56 ,  Y10S977/948

    摘要： A novel design and process for: (a) a membrane electrode assembly (MEA) with aligned carbon nanotubes as a nano-scale gas distrubutor which yield better gas conversion efficiencies in PEM fuel cells, and (b) doped silicon flow field plates (FFP) which increase electrode conductivity of the membrane-catalyst-gas diffusion layer (GDL)-FFP interfaces of the proton exchange membrane fuel cell (PEMFC). Also, part of the invention are a stacking configuration and a gas distribution design that also enhance conductivity of carbon/metal catalyst/electrode, GDL, and FFP interface surfaces without crushing the FFPs. Aligned carbon nanoscale gas distributors are employed at the interfaces, thereby increasing the overall performance of th PEMFC. The FFPs are easy to manufacture and mass-producible, yet mechanically sturdy and significantly lighter in weight than their conventional counterparts. Another novel feature of the invention is an integrated monitoring and communication/Internet system located directly or connected to the FFP.

    摘要翻译： 一种新颖的设计和工艺，用于：（a）具有排列的碳纳米管作为纳米级气体分布器的膜电极组件（MEA），其在PEM燃料电池中产生更好的气体转化效率，以及（b）掺杂的硅流场板 ），其提高质子交换膜燃料电池（PEMFC）的膜 - 催化剂 - 气体扩散层（GDL）-FFP界面的电极导电性。 此外，本发明的一部分是堆叠配置和气体分布设计，其还可以提高碳/金属催化剂/电极，GDL和FFP界面的导电性，而不破坏FFP。 在界面处使用对准的碳纳米级气体分配器，从而提高PEMFC的整体性能。 FFP易于制造和批量生产，但机械坚固，重量明显轻于传统的对应物。 本发明的另一个新颖特征是直接或连接到FFP的综合监控和通信/因特网系统。

    SYSTEMS AND METHODS FOR DETECTING LEAKS IN A FUEL CELL SYSTEM
    8.
    发明申请
    SYSTEMS AND METHODS FOR DETECTING LEAKS IN A FUEL CELL SYSTEM 审中-公开
    用于检测燃料电池系统中泄漏的系统和方法

    公开(公告)号：US20160197366A1

    公开(公告)日：2016-07-07

    申请号：US14589777

    申请日：2015-01-05

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： STEPHEN D. PACE ,  JUN CAI ,  MANISH SINHA

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04104 ,  H01M8/04388 ,  H01M8/04402 ,  H01M8/04432 ,  H01M8/04679 ,  H01M8/04753 ,  H01M8/04783 ,  H01M8/04895 ,  H01M8/04952 ,  H01M2250/20 ,  Y02T90/32

    摘要： Systems and methods for detecting and validating a leak in a fuel cell system are presented. In certain embodiments, various fuel cell stack set points may be adjusted such that adequate H2 flow data may be obtained to identify and validate an H2 leak and/or a location of such a leak. In some embodiments, H2 flow data may be obtained by adjusting certain fuel cell system operating parameters under a variety of operating conditions and/or modes and measuring flow data under such various operational conditions.

    摘要翻译： 提出了用于检测和验证燃料电池系统中的泄漏的系统和方法。 在某些实施例中，可以调整各种燃料电池堆设定点，使得可以获得足够的H2流量数据来识别和验证这种泄漏的H2泄漏和/或位置。 在一些实施例中，可以通过在各种操作条件和/或模式下调节某些燃料电池系统运行参数并在这样的各种操作条件下测量流量数据来获得H2流量数据。

    FUEL CELL SYSTEM
    9.
    发明申请
    FUEL CELL SYSTEM 有权
    燃油电池系统

    公开(公告)号：US20150004506A1

    公开(公告)日：2015-01-01

    申请号：US14371103

    申请日：2013-01-10

    申请人： NISSAN MOTOR CO., LTD.

    发明人： Yousuke Tomita ,  Keigo Ikezoe ,  Fumio Kagami

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04753 ,  H01M8/04089 ,  H01M8/04141 ,  H01M8/0432 ,  H01M8/04358 ,  H01M8/04388 ,  H01M8/04395 ,  H01M8/04492 ,  H01M8/04641 ,  H01M8/04649 ,  H01M8/04952 ,  H01M2008/1095 ,  Y02E60/50

    摘要： A fuel cell system includes a cathode gas supply unit, a cathode pressure detection unit, a fuel cell temperature detection unit configured to detect a temperature of the fuel cell, an internal resistance detection unit configured to detect an internal resistance of the fuel cell, a target cathode flow rate calculation unit configured to calculate a target cathode flow rate necessary for supply to the fuel cell based on an operating state of the fuel cell system, a cathode flow rate estimation unit configured to estimate a flow rate of the cathode gas according to the pressure of the cathode gas, the temperature of the fuel cell and the internal resistance of the fuel cell, and a cathode flow rate control unit configured to control the cathode gas supply unit based on the target cathode flow rate and the estimated flow rate of the cathode gas.

    摘要翻译： 燃料电池系统包括阴极气体供给单元，阴极压力检测单元，被配置为检测燃料电池的温度的燃料电池温度检测单元，被配置为检测燃料电池的内部电阻的内部电阻检测单元， 目标阴极流量计算单元，其被配置为基于燃料电池系统的运行状态来计算供给燃料电池所需的目标阴极流量;阴极流量估计单元，其被配置为根据 阴极气体的压力，燃料电池的温度和燃料电池的内部电阻，以及阴极流量控制单元，其被配置为基于目标阴极流量和所估计的流量来控制阴极气体供应单元 阴极气体。

    STIMULATION AND INTENSIFICATION OF INTERFACIAL PROCESSES
    10.
    发明申请
    STIMULATION AND INTENSIFICATION OF INTERFACIAL PROCESSES 有权
    界面过程的刺激和强化

    公开(公告)号：US20100141212A1

    公开(公告)日：2010-06-10

    申请号：US12631209

    申请日：2009-12-04

    申请人： Victor Stancovski

    发明人： Victor Stancovski

    IPC分类号： H02J7/00

    CPC分类号： H02J7/0004 ,  H01M8/0432 ,  H01M8/04559 ,  H01M8/04589 ,  H01M8/04649 ,  H01M8/04952 ,  H01M8/04992 ,  H01M8/225 ,  H01M10/052 ,  H01M10/345 ,  H01M10/4214 ,  H01M10/44 ,  H02J7/0068 ,  H02J7/042

    摘要： A system and method for controlling a power storage device through the Stimulation and Intensification of Interfacial Processes (SIIP) is provided. A signal generator can provide a low voltage sinusoidal AC signal across a battery terminal, or other reactor vessel, during charging and discharging states. For example, the battery/reactor vessel can be of Li-ion and NiMH designs, a fuel cell, a Zn—O cell, or other devices that have features of rechargeable batteries. The output of the signal generator (i.e., voltage, wave type, and frequency) can be controlled based on battery parameters (e.g., internal resistance, output power, temperature). The internal resistance of the battery can be reduced, and the discharge time can be increased. Elastic waves can also be provided to a battery/reactor vessel to stimulate the interfacial processes. The signal generator can be an integrated circuit which is packaged with the battery and can be powered by the battery.

    摘要翻译： 提供了一种通过界面处理（SIIP）的刺激和强化来控制蓄电装置的系统和方法。 在充电和放电状态期间，信号发生器可以在电池端子或其他反应堆容器上提供低电压正弦交流信号。 例如，电池/反应器容器可以是锂离子和NiMH设计的，燃料电池，Zn-O电池或具有可再充电电池特征的其它器件。 可以基于电池参数（例如，内部电阻，输出功率，温度）来控制信号发生器的输出（即，电压，波形和频率）。 可以减小电池的内部电阻，并且可以提高放电时间。 还可以向电池/反应器容器提供弹性波，以刺激界面过程。 信号发生器可以是与电池一起封装并且可以由电池供电的集成电路。