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    Ion-exchange materials with improved ion conductivity
    21.
    发明申请
    Ion-exchange materials with improved ion conductivity 失效
    具有改善离子电导率的离子交换材料

    公开(公告)号：US20030078308A1

    公开(公告)日：2003-04-24

    申请号：US10144663

    申请日：2002-05-13

    Applicant: Ballard Power Systems Inc.

    Inventor： Steven Holdcroft ,  Jianfu Ding ,  Carmen Chuy ,  Charles Stone ,  Anne E. Morrison

    IPC: C08J005/20

    CPC classification number: H01B1/122 ,  B01J39/17 ,  B01J39/20 ,  B01J47/12 ,  C08J5/2237 ,  C08J5/225 ,  C08J2325/08 ,  H01M8/0289 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1072 ,  H01M2300/0082 ,  Y02P70/56

    Abstract: Ion-exchange materials comprising a polymeric backbone and a plurality of pendent styrenic or fluorinated styrenic macromonomers covalently bonded thereto, wherein the plurality of pendent styrenic or fluorinated styrenic macromonomers comprise a uniform number of styrenic or fluorinated styrenic monomer repeat units, and wherein predominantly all of the styrenic or fluorinated styrenic monomer repeat units have at least one charged group. Processes for making such materials, as well as products related thereto, are also disclosed. In a representative embodiment, the ion-exchange material is utilized as a proton-exchange membrane (PEM) for use in a PEM fuel cell.

    Abstract translation: 离子交换材料包含聚合物主链和共价键合到其上的多个侧链苯乙烯或氟化苯乙烯大分子单体，其中所述多个侧链苯乙烯或氟化苯乙烯类大分子单体包含均匀数量的苯乙烯或氟化苯乙烯单体重复单元，并且其中主要全部 苯乙烯或氟化苯乙烯类单体重复单元具有至少一个带电荷的基团。 还公开了制造这种材料的方法以及与其相关的产品。 在代表性的实施方案中，离子交换材料用作用于PEM燃料电池的质子交换膜（PEM）。

    Fuel cell purging method and apparatus
    22.
    发明申请
    Fuel cell purging method and apparatus 失效
    燃料电池清洗方法和装置

    公开(公告)号：US20030022041A1

    公开(公告)日：2003-01-30

    申请号：US09916211

    申请日：2001-07-25

    Applicant: Ballard Power Systems Inc.

    Inventor： Russell Howard Barton ,  Tan Duc Uong ,  Charles Joseph Schembri ,  George Alexander Skinner

    IPC: H01M008/04

    CPC classification number: H01M8/04231 ,  H01M8/04007 ,  H01M8/04119

    Abstract: A purge system for fuel cell stack includes a purge valve to regulate exhaust from the fuel cell stack in response control signals from a controller in response to a voltage across a purge cell portion of a fuel cell stack. The purge valve is opened when the voltage across the purge cell portion falls below a defined percentage of a threshold voltage. The threshold voltage can be equal to an average cell voltage of some or all of the fuel cells of the fuel cell stack. The purge may include one or more successive openings of the purge valve of controlled purge durations.

    Abstract translation: 用于燃料电池堆的吹扫系统包括净化阀，以响应来自燃料电池堆的净化单元部分的电压的来自控制器的响应控制信号来调节来自燃料电池堆的排气。 当净化池部分两端的电压低于阈值电压的规定百分比时，净化阀打开。 阈值电压可以等于燃料电池堆的一些或所有燃料电池的平均电池电压。 吹扫可以包括被控吹扫持续时间的净化阀的一个或多个连续的开口。

    Method and device for improved catalytic activity in the purification of fluids
    23.
    发明申请
    Method and device for improved catalytic activity in the purification of fluids 失效
    用于改善流体净化中催化活性的方法和装置

    公开(公告)号：US20030010629A1

    公开(公告)日：2003-01-16

    申请号：US10167063

    申请日：2002-06-11

    Applicant: Ballard Power Systems Inc.

    Inventor： Jean St-Pierre ,  David P. Wilkinson ,  Stephen A. Campbell

    IPC: C25B009/00 ,  C25C007/00 ,  C25D017/00 ,  H01M002/00 ,  H01M002/02 ,  H01M002/14 ,  H01M008/10

    CPC classification number: H01M8/0662

    Abstract: The activity of catalysts used in promoting the oxidation of certain oxidizable species in fluids can be enhanced via electrochemical methods, e.g., NEMCA. In particular, the activity of catalysts used in the selective oxidation of carbon monoxide can be enhanced. A purification system that exploits this effect is useful in purifying reformate supplied as fuel to a solid polymer electrolyte fuel cell stack. The purification system comprises an electrolytic cell with fluid diffusion electrodes. The activity of catalyst incorporated in the cell anode is enhanced.

    Abstract translation: 用于促进流体中某些可氧化物质氧化的催化剂的活性可以通过电化学方法例如NEMCA来增强。 特别地，可以提高用于选择性氧化一氧化碳的催化剂的活性。 利用这种效果的净化系统可用于将作为燃料提供的重整产物纯化成固体聚合物电解质燃料电池堆。 净化系统包括具有流体扩散电极的电解池。 加入到电池阳极中的催化剂的活性得到增强。

    Electrochemical fuel cell with an electrode having an in-plane nonuniform structure
    24.
    发明申请
    Electrochemical fuel cell with an electrode having an in-plane nonuniform structure 审中-公开
    电化学燃料电池，其电极具有平面不均匀的结构

    公开(公告)号：US20020127452A1

    公开(公告)日：2002-09-12

    申请号：US10079612

    申请日：2002-02-19

    Applicant: Ballard Power Systems Inc.

    Inventor： David P. Wilkinson ,  Peter R. Gibb

    IPC: H01M008/10 ,  H01M008/02 ,  H01M008/24 ,  H01M004/86

    CPC classification number: H01M8/241 ,  H01M4/8626 ,  H01M4/96 ,  H01M8/023 ,  H01M8/0241 ,  H01M8/0258 ,  H01M8/04156 ,  H01M8/2483 ,  H01M2300/0082

    Abstract: In an improved electrochemical fuel cell assembly, a reactant flow path extends substantially linearly across the electrochemically active area of an electrode. The electrode has an in-plane nonuniform structure in its electrochemically active area as the active area is traversed in the direction of the substantially linear reactant flow path. Embodiments in which the structure of the fuel cell electrode varies substantially symmetrically along the reactant flow path are particularly preferred in fuel cells in which the flow direction of a reactant is periodically reversed.

    Abstract translation: 在改进的电化学燃料电池组件中，反应物流动路径基本上线性延伸穿过电极的电化学活性区域。 电极在其电化学活性区域中具有面内不均匀的结构，因为有源区域沿着基本上线性的反应物流动路径的方向穿过。 其中燃料电池电极的结构沿着反应物流动路径大致对称地变化的实施例在其中反应物的流动方向周期性地反转的燃料电池中是特别优选的。

    FLOW FIELD PLATE FOR ELECTROCHEMICAL FUEL CELLS
    26.
    发明申请
    FLOW FIELD PLATE FOR ELECTROCHEMICAL FUEL CELLS 有权

    公开(公告)号：US20210075031A1

    公开(公告)日：2021-03-11

    申请号：US16642330

    申请日：2018-08-23

    Applicant: Ballard Power Systems Inc.

    Inventor： Adel Benhaj JILANI ,  Radu P. BRADEAN

    IPC: H01M8/0258 ,  H01M8/0247 ,  H01M8/0232 ,  H01M8/0234

    Abstract: A flow field plate comprises a first flow field surface, an opposing second surface, and at least one flow channel and at least one landing formed in the first flow field surface, wherein the landing comprises a main surface, at least a first protrusion and a second protrusion extending from the main surface, each of the first and the second protrusions being placed at an edge of the main surface of the landing. The main surface of the landing has preferably a curved shape and the protrusions extending from the main surface have preferably a rounded shape.

    Fuel cell systems and related arrangements for limiting relative motion between fuel cells
    28.
    发明授权
    Fuel cell systems and related arrangements for limiting relative motion between fuel cells 有权
    燃料电池系统和用于限制燃料电池之间的相对运动的相关布置

    公开(公告)号：US09070937B2

    公开(公告)日：2015-06-30

    申请号：US14138251

    申请日：2013-12-23

    Applicant: Ballard Power Systems Inc.

    Inventor： David A. Niezelski ,  Jeffery G. Lake ,  Robert A. Love ,  Jason Bennett Blydenburgh

    IPC: H01M2/20 ,  H01M8/24 ,  H01M8/00 ,  H01M8/02 ,  H01M8/10

    CPC classification number: H01M8/247 ,  H01M8/00 ,  H01M8/006 ,  H01M8/0267 ,  H01M8/0271 ,  H01M8/241 ,  H01M8/2415 ,  H01M8/2457 ,  H01M2008/1095 ,  Y02E60/50

    Abstract: Fuel cell systems (10) and related methods for limiting fuel cell slippage are provided. A stacked plurality of adjacent fuel cells (14) collectively forming a fuel cell stack (12). The fuel cells each include a pair of first and second plates (30, 30′, 30″; 32, 32′, 32″) at respective opposite ends thereof. A first fuel cell has a first plate (30, 30′, 30″) in engagement with a second plate (32, 32′, 32″) of a second fuel cell adjacent to the first fuel cell. A slip mitigation arrangement (50, 50′, 50″) between at least one of the pairs of the first and second fuel cells comprises first and second seats (62, 62′, 62″; 64, 64′, 64″) recessed in the engagement surfaces of the first and second conductive plates respectively, and a key member (60, 60′, 60″) having opposite ends seated in the first and the second recessed seats such that relative movement between the first and the second fuel cells is limited.

    Abstract translation: 提供燃料电池系统（10）和限制燃料电池滑移的相关方法。 堆叠的多个相邻的燃料电池（14）共同形成燃料电池堆（12）。 燃料电池各自包括在其相对两端的一对第一和第二板（30,30'，30“; 32,32'，32”）。 第一燃料电池具有与邻近第一燃料电池的第二燃料电池的第二板（32,32'，32“）接合的第一板（30,30'，30”）。 所述第一和第二燃料电池对中的至少一对之间的滑动减轻装置（50,50'，50“）包括凹入的第一和第二座（62,62'，62”; 64,64'，64“） 分别在第一和第二导电板的接合表面中，以及具有相对端部位于第一和第二凹入座中的键构件（60,60'，60“），使得第一和第二燃料电池之间的相对运动 有限

    METHOD FOR PRODUCING CATALYST FOR FUEL CELLS, AND FUEL CELL CONTAINING CATALYST FOR FUEL CELLS PRODUCED BY THE PRODUCTION METHOD
    29.
    发明申请
    METHOD FOR PRODUCING CATALYST FOR FUEL CELLS, AND FUEL CELL CONTAINING CATALYST FOR FUEL CELLS PRODUCED BY THE PRODUCTION METHOD 审中-公开
    用于生产燃料电池的催化剂的方法，以及包含由生产方法生产的燃料电池的催化剂的燃料电池

    公开(公告)号：US20150093682A1

    公开(公告)日：2015-04-02

    申请号：US14400661

    申请日：2013-01-21

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  BALLARD POWER SYSTEMS INC.

    Inventor： Hiroko Kimura ,  Naoki Takehiro

    IPC: H01M4/92 ,  H01M8/10 ,  H01M4/88

    Abstract: The present invention is to provide a method for producing a catalyst for fuel cells with excellent durability, and a fuel cell comprising a catalyst for fuel cells produced by the production method. Disclosed is a method for producing a catalyst for fuel cells, the catalyst comprising fine catalyst particles, each of which comprises a palladium-containing core particle and a platinum-containing outermost layer covering the core particle, and carbon supports on which the fine catalyst particles are supported, wherein the method comprises the steps of: preparing carbon supports on which palladium-containing particles are supported; fining the carbon supports; and covering the palladium-containing particles with a platinum-containing outermost layer after the fining step.

    Abstract translation: 本发明提供一种制造具有优异的耐久性的燃料电池用催化剂的方法，以及燃料电池，其包含通过该制造方法制造的燃料电池用催化剂。 公开了一种燃料电池用催化剂的制造方法，所述催化剂含有细小的催化剂粒子，所述催化剂粒子包含含钯的核心粒子和覆盖所述核心粒子的含铂的最外层，以及碳载体， 其中所述方法包括以下步骤：制备其上载有含钯颗粒的碳载体; 澄清碳载体; 并且在澄清步骤之后用含铂的最外层覆盖含钯颗粒。

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