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    Membrane electrode assembly with fluoro alkyl compound additive
    1.
    发明授权
    Membrane electrode assembly with fluoro alkyl compound additive 有权

    公开(公告)号：US11431014B2

    公开(公告)日：2022-08-30

    申请号：US16633526

    申请日：2018-07-17

    Applicant: Ballard Power Systems Inc.

    Inventor： Rajesh Bashyam ,  Ping He ,  Siyu Ye

    IPC: H01M8/1004 ,  H01M4/86 ,  H01M4/88 ,  H01M8/102 ,  H01M8/10

    Abstract: A membrane electrode assembly comprises an anode electrode comprising an anode catalyst layer and an anode gas diffusion layer, a cathode electrode comprising a cathode catalyst layer and a cathode gas diffusion layer, a polymer electrolyte membrane interposed between the anode catalyst layer and the cathode catalyst layer, and a layer comprising a fluoroalkyl-phosphonic acid compound between at least one of the anode gas diffusion layer and the anode catalyst layer, the anode catalyst layer and the polymer electrolyte membrane, the polymer electrolyte membrane and the cathode catalyst layer, and the cathode catalyst layer and the cathode gas diffusion layer.

    Seal for solid polymer electrolyte fuel cell
    2.
    发明授权
    Seal for solid polymer electrolyte fuel cell 有权

    公开(公告)号：US11088373B2

    公开(公告)日：2021-08-10

    申请号：US15550758

    申请日：2016-02-11

    Applicant: BALLARD POWER SYSTEMS INC.

    Inventor： Ian Stewart ,  Darcy McGowan ,  Emerson Gallagher

    IPC: H01M8/0273 ,  H01M8/028 ,  H01M8/0286 ,  B29C45/14 ,  B29C45/00 ,  B29K21/00

    Abstract: A sealed membrane electrode assembly (MEA) and a method of sealing the MEA comprises the steps of providing a frame around a periphery of the MEA to form a framed MEA; providing a through-hole in the frame; placing the framed MEA into a seal mold, the seal mold comprising a reservoir region, a seal bead region, and at least one runner region; feeding a flow-processable seal material into the reservoir region in the seal mold that is aligned with the throughhole in the frame; feeding the flow-processable seal material from the reservoir region to the seal bead region through the at least one runner region; wherein a hydraulic diameter of the at least one runner region is less than a hydraulic diameter of the reservoir region.

    Compression apparatus for fuel cell stack
    4.
    发明授权
    Compression apparatus for fuel cell stack 有权

    公开(公告)号：US10892509B2

    公开(公告)日：2021-01-12

    申请号：US15580919

    申请日：2016-06-13

    Applicant: BALLARD POWER SYSTEMS INC.

    Inventor： David Myers ,  George Skinner ,  Emerson R. Gallagher

    IPC: H01M8/248 ,  H01M8/1018

    Abstract: A fuel cell stack assembly is disclosed comprising: a fuel cell stack comprising a first end plate, a second end plate, and a plurality of fuel cells interposed between the first and the second end plates; and a compression band which urges the first end plate towards the second end plate along a first face of the fuel cell stack and also along an opposing second face of the fuel stack in a stacking direction thereof in at least two passes on each face of fuel cells stack, thereby applying a compressive force upon the plurality of fuel cells in the fuel cell stack.

    LOW COST FUEL CELL COMPONENTS
    6.
    发明申请
    LOW COST FUEL CELL COMPONENTS 审中-公开
    低成本燃油电池组件

    公开(公告)号：US20150288005A1

    公开(公告)日：2015-10-08

    申请号：US14435676

    申请日：2012-10-19

    Applicant: Ballard Power Systems Inc.

    Inventor： Timothy W. Patterson ,  Thomas H. Madden ,  Robert M. Darling ,  Glenn M. Allen

    IPC: H01M8/04 ,  H01M8/10

    CPC classification number: H01M8/04029 ,  H01M8/0213 ,  H01M8/0221 ,  H01M8/0228 ,  H01M8/0254 ,  H01M8/026 ,  H01M8/0267 ,  H01M8/0297 ,  H01M8/1004 ,  H01M8/1018 ,  H01M8/24 ,  H01M8/241 ,  H01M2008/1095 ,  H01M2250/20 ,  H01M2300/0082 ,  Y02T90/32

    Abstract: Fuel cell reactant flow field plates (22, 32) are formed by extruding long sections (17, 25) of carbonaceous material, either with straight grooves (18, 28) formed by the extrusion die, or by end milling or arbor milling, and then cut to a proper size, including cuts in which the edges of the plates are at an angle with respect to the grooves. Cooler plates are formed of water-permeable material (39) in which hydrophobic material (40) is impregnated so as to define coolant channels (42-44) with inlets and outlets (47, 49). A two-layer cooler plate is formed by stamping voids in one layer (51) that define coolant flow channels (52) with inlets (54) and outlets (56) while a second layer (59) is stamped with voids (61, 62) that define coolant inlet and exit headers; juxtaposition of the layers, with or without bonding, form the cooler plate. A cooler plate (65) is made by corrugating thin metal sheet, providing coolant channels (68) for cathodes and coolant channels (73) for anodes when interposed therebetween.

    Abstract translation: 燃料电池反应物流场板（22,32）通过挤出碳质材料的长截面（17,25）而形成，或者通过由挤出模头形成的直槽（18,28），或通过端铣或刀轴铣削，以及 然后切割成适当的尺寸，包括板的边缘相对于凹槽成一定角度的切口。 冷却板由透水材料（39）形成，其中浸渍疏水材料（40）以便限定具有入口和出口（47,49）的冷却剂通道（42-44）。 通过在限定具有入口（54）和出口（56）的冷却剂流动通道（52）的一个层（51）中冲压空隙而形成双层冷却板，而第二层（59）被冲压有空隙（61,62 ），其限定冷却剂入口和出口集管; 有或没有粘合的层的并置形成冷却板。 冷却板（65）通过瓦楞薄金属板制成，为阴极提供冷却剂通道（68）和用于阳极的冷却剂通道（73）。

    Circulation of biphase fuel cell coolant
    8.
    发明授权
    Circulation of biphase fuel cell coolant 有权
    双相燃料电池冷却液循环

    公开(公告)号：US08771885B2

    公开(公告)日：2014-07-08

    申请号：US13869384

    申请日：2013-04-24

    Applicant: Ballard Power Systems Inc.

    Inventor： Michael L. Perry ,  Robert M. Darling

    IPC: H01M8/06

    CPC classification number: H01M8/04014 ,  H01M8/04029 ,  H01M8/04044 ,  H01M8/04074 ,  H01M8/04097 ,  H01M8/04164 ,  H01M8/04179 ,  H01M8/04253 ,  H01M8/04291 ,  H01M2008/1095 ,  H01M2250/20 ,  Y02T90/32

    Abstract: Coolant velocity greater than zero everywhere within the coolant channels (78, 85) of fuel cells (38) in a fuel cell stack (37) is assured by providing a flow of biphase fluid in the coolant channels, the flow being created by the outflow of a condenser (59). Positive pressure is applied to the coolant inlet (66) of the coolant channels. Biphase flow from an oxidant exhaust condenser, which may be a vehicle radiator (120), renders the coolant return flow more freeze tolerant. Using biphase flow within the coolant channels eliminates the need for a bubble-clearing liquid pump and reduces liquid inventory and other plumbing; this makes the fuel cell power plant more freeze tolerant.

    Abstract translation: 在燃料电池堆（37）中的燃料电池（38）的冷却剂通道（78,85）内的任何地方的冷却剂速度大于零，通过在冷却剂通道中提供双相流体的流动来确保流动，该流动由流出 的冷凝器（59）。 正压力被施加到冷却剂通道的冷却剂入口（66）。 来自可以是车辆散热器（120）的氧化剂排气冷凝器的双相流动使得冷却剂返回流更具有耐冻性。 在冷却液通道内使用双相流动消除了清洗液体泵的需要，并减少了液体库存和其他管道; 这使得燃料电池发电厂更具有耐冻性。

    Apparatus for embossing expanded graphite sheet material under reduced pressure
    9.
    发明申请
    Apparatus for embossing expanded graphite sheet material under reduced pressure 审中-公开
    用于在减压下压花膨胀石墨片材的装置

    公开(公告)号：US20040231530A1

    公开(公告)日：2004-11-25

    申请号：US10871227

    申请日：2004-06-18

    Applicant: Ballard Power Systems Inc.

    Inventor： Donald A. Lines ,  Nicholas A. Fletcher ,  Eric G. Pow ,  Michael Sexsmith ,  Bill Gray ,  Horst Thumm

    IPC: B41F019/02

    CPC classification number: B29C43/3607 ,  B29C43/003 ,  B29C43/36 ,  B29C43/56 ,  B29C2043/025 ,  B29C2043/566 ,  H01M8/0206 ,  H01M8/0213 ,  H01M8/0228 ,  Y10T29/10 ,  Y10T156/1023 ,  Y10T156/1039 ,  Y10T156/1056

    Abstract: A method for embossing expanded graphite sheet material comprises removing at least a portion of the gas from within the material by exposing the material to a pressure less than atmospheric pressure, and then embossing the material. The pressure to which the material is exposed is preferably no greater than about 400 torr. An apparatus for embossing expanded graphite sheet material at a pressure less than atmospheric pressure comprises: an embossing device, a compression device adapted to urge the embossing device against the material, an embossing chamber comprising the at least one embossing device and adapted to receive the material and to be substantially gas-tight at least when the embossing device is urged against the material by the pressing device, and an evacuation device for reducing the pressure within the embossing chamber.

    Abstract translation: 用于压花膨胀石墨片材的方法包括通过将材料暴露于低于大气压的压力，然后对材料进行压花来从材料内除去至少一部分气体。 材料暴露的压力优选不大于约400托。 一种用于在低于大气压力的压力下对膨胀石墨片材进行压花的装置包括：压花装置，适于将压花装置推靠在材料上的压缩装置，包括至少一个压花装置并适于接纳材料的压花室 并且至少当压花装置通过加压装置被推靠在材料上时基本上不气密，以及用于降低压花室内的压力的排气装置。

    Method and apparatus for fuel cell systems
    10.
    发明申请
    Method and apparatus for fuel cell systems 失效
    燃料电池系统的方法和装置

    公开(公告)号：US20040229095A1

    公开(公告)日：2004-11-18

    申请号：US10440451

    申请日：2003-05-16

    Applicant: Ballard Power Systems Inc.

    Inventor： Martin T. Pearson

    IPC: H01M008/04 ,  H01M008/24

    CPC classification number: H01M8/04917 ,  H01M8/04007 ,  H01M8/04679 ,  H01M8/04753 ,  H01M8/04947 ,  H01M8/249 ,  H01M16/006 ,  H02J1/10 ,  H02J7/345 ,  H02J2001/004

    Abstract: An array of fuel cell systems are electrically couplable in series and/or parallel combinations to provide a variety of output powers, output current and/or output voltages. The fuel cell systems are nullhot swappablenull and redundant fuel cell systems may automatically replace faulty fuel cell systems to maintain output power, current and/or voltage, with or without switching. The configuration of fuel cell systems may be automatic and may be based on desired power, current and/or voltage, and/or based on the operating parameters of the fuel cell systems and/or power supply system.

    Abstract translation: 一系列燃料电池系统可串联和/或并联组合电耦合，以提供各种输出功率，输出电流和/或输出电压。 燃料电池系统是“可热交换的”，并且冗余的燃料电池系统可以自动地更换有缺陷的燃料电池系统以保持输出功率，电流和/或电压，有或没有开关。 燃料电池系统的配置可以是自动的，并且可以基于期望的功率，电流和/或电压，和/或基于燃料电池系统和/或供电系统的操作参数。

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