Method and apparatus for detecting defects of fuel cell membrane-electrode assembly

    公开(公告)号:US09653743B2

    公开(公告)日:2017-05-16

    申请号:US14550926

    申请日:2014-11-22

    CPC classification number: H01M8/04671 H01M8/04432 H01M8/04783 H01M2008/1095

    Abstract: Disclosed herein is a method of detecting defects of a fuel cell membrane-electrode assembly which comprises a gas diffusion layer, a catalyst layer and an electrolyte membrane. The method includes steps of: supplying gas to a first side of the membrane-electrode assembly; deducing a pressure of the supplied gas and a permeation rate of the gas permeating to a second side of the membrane-electrode assembly and then deducing an interface pressure between the electrolyte membrane and the gas diffusion layer of the membrane-electrode assembly using the deduced pressure of the supplied gas and the permeation rate; calculating a gas permeability of the electrolyte membrane using the deduced values of the pressure of the supplied gas and the permeation rate and a predetermined outlet pressure at the second side of the membrane-electrode assembly; and determining a defect state of the electrolyte membrane using a variation in the calculated gas permeability according to a change in the pressure of the supplied gas.

    Pinhole detection system of fuel cell
    3.
    发明授权
    Pinhole detection system of fuel cell 有权
    燃料电池针孔检测系统

    公开(公告)号:US09170216B2

    公开(公告)日:2015-10-27

    申请号:US14150116

    申请日:2014-01-08

    CPC classification number: G01N23/046 G01N2223/419 H01M8/04671

    Abstract: A pinhole detection system of a fuel cell element unit including a density measurement module that calculates a density of a fuel cell element unit using weight and volume data measured from electronic weight balance and 3D scan type volume integrator. Photon energy ranges of X-ray beam and window species of the pinhole detection system automatically are selected from Group 1 or Group 2 according to the density reference point for a fuel cell element, and a stage on which a fuel cell element unit is disposed to be detected. A drive portion that moves the stage to rotate the fuel cell element unit. An X-ray source is disposed at one side of the stage to apply X-ray to the fuel cell element unit that rotates. An image detector detects an X-ray penetrating the fuel cell element unit, and a computer tomography that reconstructs a three dimensional tomogram.

    Abstract translation: 一种燃料电池元件单元的针孔检测系统,包括密度测量模块,其使用从电子重量平衡测量的重量和体积数据以及3D扫描型体积积分器来计算燃料电池元件单元的密度。 根据燃料电池元件的密度参考点自动从组1或组2中选择针孔检测系统的X射线束和窗口种类的光子能量范围,以及燃料电池元件单元设置在其上的阶段 被检测。 驱动部分,其移动台架以使燃料电池元件单元旋转。 X射线源设置在舞台的一侧,以对旋转的燃料电池元件单元施加X射线。 图像检测器检测穿过燃料电池元件单元的X射线以及重建三维断层图像的计算机断层摄影。

    METHOD AND APPARATUS FOR DETECTING DEFECTS OF FUEL CELL MEMBRANE-ELECTRODE ASSEMBLY
    4.
    发明申请
    METHOD AND APPARATUS FOR DETECTING DEFECTS OF FUEL CELL MEMBRANE-ELECTRODE ASSEMBLY 有权
    检测燃料电池电极组件缺陷的方法和装置

    公开(公告)号:US20160013500A1

    公开(公告)日:2016-01-14

    申请号:US14550926

    申请日:2014-11-22

    CPC classification number: H01M8/04671 H01M8/04432 H01M8/04783 H01M2008/1095

    Abstract: Disclosed herein is a method of detecting defects of a fuel cell membrane-electrode assembly which comprises a gas diffusion layer, a catalyst layer and an electrolyte membrane. The method includes steps of: supplying gas to a first side of the membrane-electrode assembly; deducing a pressure of the supplied gas and a permeation rate of the gas permeating to a second side of the membrane-electrode assembly and then deducing an interface pressure between the electrolyte membrane and the gas diffusion layer of the membrane-electrode assembly using the deduced pressure of the supplied gas and the permeation rate; calculating a gas permeability of the electrolyte membrane using the deduced values of the pressure of the supplied gas and the permeation rate and a predetermined outlet pressure at the second side of the membrane-electrode assembly; and determining a defect state of the electrolyte membrane using a variation in the calculated gas permeability according to a change in the pressure of the supplied gas.

    Abstract translation: 本发明公开了一种检测包括气体扩散层,催化剂层和电解质膜的燃料电池膜 - 电极组件的缺陷的方法。 该方法包括以下步骤:向膜 - 电极组件的第一侧供应气体; 推断供给气体的压力和渗透到膜 - 电极组件的第二侧的气体的渗透速度,然后使用推导压力推导电解质膜和膜 - 电极组件的气体扩散层之间的界面压力 的供应气体和渗透速率; 使用所提供的气体的压力的推导值和膜电极组件的第二侧的渗透速率和预定出口压力来计算电解质膜的气体渗透性; 以及根据供给气体的压力变化,使用所计算的气体渗透性的变化来确定电解质膜的缺陷状态。

    System and method for activating fuel cells
    7.
    发明授权
    System and method for activating fuel cells 有权
    用于激活燃料电池的系统和方法

    公开(公告)号:US09252439B2

    公开(公告)日:2016-02-02

    申请号:US13890745

    申请日:2013-05-09

    Abstract: A system for activating a fuel cell includes a flow meter for measuring the amount of water discharged from an outlet of the air electrode and an outlet of the fuel electrode; a pressure sensor for measuring the pressure at the respective outlets; and a back pressure regulator receiving flow values measured by the flow meters and pressure values measured by the pressure sensors, which are fed back from a controller, and regulating a pressure difference (ΔP=PCathode−PAnode) to be a value greater than 0. With the system, the activation time of a fuel cell and the amount of hydrogen used for the activation can be reduced, thus improving the productivity and manufacturing cost.

    Abstract translation: 用于启动燃料电池的系统包括用于测量从空气电极的出口排出的水量和燃料电极的出口的流量计; 用于测量各个出口处的压力的压力传感器; 以及背压调节器,其接收由流量计测量的流量值和由控制器反馈的压力传感器测量的压力值,并将压力差(&Dgr; P = PCathode-PAnode)调节为大于 通过该系统,能够降低燃料电池的活化时间和激活用氢的量,从而提高生产率和制造成本。

    PINHOLE DETECTION SYSTEM OF FUEL CELL
    10.
    发明申请
    PINHOLE DETECTION SYSTEM OF FUEL CELL 有权
    燃料电池检测系统

    公开(公告)号:US20140119499A1

    公开(公告)日:2014-05-01

    申请号:US14150116

    申请日:2014-01-08

    CPC classification number: G01N23/046 G01N2223/419 H01M8/04671

    Abstract: A pinhole detection system of a fuel cell element unit including a density measurement module that calculates a density of a fuel cell element unit using weight and volume data measured from electronic weight balance and 3D scan type volume integrator. Photon energy ranges of X-ray beam and window species of the pinhole detection system automatically are selected from Group 1 or Group 2 according to the density reference point for a fuel cell element, and a stage on which a fuel cell element unit is disposed to be detected. A drive portion that moves the stage to rotate the fuel cell element unit. An X-ray source is disposed at one side of the stage to apply X-ray to the fuel cell element unit that rotates. An image detector detects an X-ray penetrating the fuel cell element unit, and a computer tomography that reconstructs a three dimensional tomogram.

    Abstract translation: 一种燃料电池元件单元的针孔检测系统,包括密度测量模块,其使用从电子重量平衡测量的重量和体积数据以及3D扫描型体积积分器来计算燃料电池元件单元的密度。 根据燃料电池元件的密度参考点自动从组1或组2中选择针孔检测系统的X射线束和窗口种类的光子能量范围,以及燃料电池元件单元设置在其上的阶段 被检测。 驱动部分,其移动台架以使燃料电池元件单元旋转。 X射线源设置在舞台的一侧,以对旋转的燃料电池元件单元施加X射线。 图像检测器检测穿过燃料电池元件单元的X射线以及重建三维断层图像的计算机断层摄影。

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