Individual cell shorting during startup and shutdown using an integrated switch
    72.
    发明授权
    Individual cell shorting during startup and shutdown using an integrated switch 有权
    使用集成开关启动和关闭时的单个电池短路

    公开(公告)号:US07927752B2

    公开(公告)日:2011-04-19

    申请号:US11684302

    申请日:2007-03-09

    IPC分类号: H01M8/24

    摘要: An electrical shorting device for a fuel cell is provided, wherein the shorting device includes an electrically conductive body and an actuator coupled to the conductive body and adapted to selectively position the body between an electrically conductive and a non-electrically conductive position to selectively provide electrical communication between an anode plate and a cathode plate of the fuel cell. The shorting device facilitates electrical shorting of individual cells during the startup and shutdown of the fuel cell to eliminate the electrical potential across a proton exchange membrane that causes a degradation of a catalyst layer disposed on an a surface of an electrode of the fuel cells.

    摘要翻译: 提供了一种用于燃料电池的电短路装置,其中短路装置包括导电体和耦合到导电体的致动器,并且适于选择性地将主体定位在导电和非导电位置之间,以选择性地提供电气 燃料电池的阳极板和阴极板之间的连通。 短路装置有助于在燃料电池的启动和关闭期间单个电池的电短路,以消除导致设置在燃料电池的电极表面上的催化剂层的质子交换膜的电势。

    MULTI-CELL ELECTRIC SIGNAL PROCESSING BIPOLAR PLATE FEATURES
    74.
    发明申请
    MULTI-CELL ELECTRIC SIGNAL PROCESSING BIPOLAR PLATE FEATURES 有权
    多单元电子信号处理双极板特性

    公开(公告)号:US20100261081A1

    公开(公告)日:2010-10-14

    申请号:US12421329

    申请日:2009-04-09

    IPC分类号: H01M2/06 G01N27/02

    摘要: A system and method for processing the electric signals from a plurality of fuel cells in a fuel cell system is disclosed. Groups of the plurality of fuel cells, such as five bipolar plates, are electrically coupled to a conductive compressible connector or a circuit board, where some of the bipolar plates have a plate contactor for providing the electrical contact to either the conductive compressible connector or the circuit board. The system allows for the processing of the electric signals of every cell using fewer electrical components, thereby reducing the amount of space required and the costs associated therewith.

    摘要翻译: 公开了一种用于处理来自燃料电池系统中的多个燃料电池的电信号的系统和方法。 多个燃料电池的组,例如五个双极板,电耦合到导电可压缩连接器或电路板,其中一些双极板具有板接触器,用于将电接触提供给导电可压缩连接器或 电路板。 该系统允许使用更少的电气部件处理每个电池的电信号,从而减少所需的空间量和与之相关的成本。

    STAMPED FUEL CELL BIPOLAR PLATE
    78.
    发明申请
    STAMPED FUEL CELL BIPOLAR PLATE 有权
    冲压燃料电池双极板

    公开(公告)号:US20090004522A1

    公开(公告)日:2009-01-01

    申请号:US12207541

    申请日:2008-09-10

    IPC分类号: H01M8/02 H01M8/04

    摘要: An electro-conductive plate assembly for a fuel cell has a pair of stamped plates joined together to define a coolant volume therein. Each of the pair of stamped plates has a flow field on a major outer surface arranged to maximize the contact area between major inner surfaces of the plates while allowing coolant to distribute and flow readily within the coolant volume. The flow fields formed on the major outer surfaces provide corresponding sets of lands on the major inner surfaces that contact to form a third flow field of the coolant volume. The third flow field formed by the lands includes a plurality of longitudinal channels and an array of flow disruptors. The bipolar plate assembly further includes a seal arrangement and integral manifolds to direct reactant gas and coolant flow through the fuel cell.

    摘要翻译: 用于燃料电池的导电板组件具有连接在一起以在其中限定冷却剂体积的一对冲压板。 一对冲压板中的每一个在主外表面上具有流场,其布置成使板的主内表面之间的接触面积最大化,同时允许冷却剂在冷却剂体积内容易分布和流动。 形成在主外表面上的流场在主内表面上提供相应的一组焊盘,其接触以形成冷却剂体积的第三流场。 由焊盘形成的第三流场包括多个纵向通道和一组流动扰流器。 双极板组件还包括密封装置和一体式歧管,以引导反应气体和冷却剂流过燃料电池。

    WATER REMOVAL SYSTEM FOR NON-REACTIVE REGIONS IN PEFMC STACKS
    79.
    发明申请
    WATER REMOVAL SYSTEM FOR NON-REACTIVE REGIONS IN PEFMC STACKS 有权
    PEFMC堆栈中非反应区域的水去除系统

    公开(公告)号:US20080241607A1

    公开(公告)日:2008-10-02

    申请号:US11695200

    申请日:2007-04-02

    IPC分类号: H01M8/00

    摘要: A device and method to extract water from a moisture-rich fuel cell flowpath. A water transport unit is integrated into the fuel cell so that liquid water stagnation within flow channels and manifolds is reduced. In one embodiment, the device includes numerous flowpaths that include an active region and an inactive region. The water transport unit includes a hydrophilic member such that upon passage of a fluid with the excess water through the inactive region of the device flowpath and into the presence of the hydrophilic member, it absorbs excess water from the fluid.

    摘要翻译: 从富含水分的燃料电池流路中提取水的装置和方法。 水输送单元被集成到燃料电池中,使得在流动通道和歧管内的液态水停滞减少。 在一个实施例中,该装置包括许多流路,其包括有源区和非活动区。 水输送单元包括亲水构件,使得当流体与过量的水通过装置流动路径的非活动区域并且进入亲水构件的存在时,其吸收来自流体的多余的水。