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1. 发明专利

AU1886692A GASKETED MEMBRANE ELECTRODE ASSEMBLY FOR ELECTROCHEMICAL FUEL CELLS 未知
公开(公告)号：AU1886692A
公开(公告)日：1993-01-08
申请号：AU1886692
申请日：1992-06-01
申请人： BALLARD POWER SYSTEMS INC.
发明人： ALFRED E STECK , JINZHU WEI
IPC分类号： C25B9/00 , H01M8/02 , H01M8/10
摘要： A gasketed membrane electrode assembly for electrochemical fuel cells employs gasketing material at the periphery of the ion exchange membrane, rather than the membrane itself, as a gasket. The gasketing material may be formed from an elastomeric material suitable for cold bonding or bonding by heat and pressure. A nonhydrophilic thermoplastic elastomer is the preferred gasketing material. The gasketed membrane electrode assembly provides a seal between the electrically conductive separator plates that is more effective and economical than assemblies employing the membrane itself as the gasketing material. In an alternative embodiment, a gasketed membrane assembly for use in the humidification portion of a fuel cell employs gasketing material at the periphery of a water permeable membrane.

2. 发明授权

US11431014B2 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
申请人： Ballard Power Systems Inc.
发明人： Rajesh Bashyam , Ping He , Siyu Ye
IPC分类号： H01M8/1004 , H01M4/86 , H01M4/88 , H01M8/102 , H01M8/10
摘要： 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.

3. 发明授权

US11088373B2 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
申请人： BALLARD POWER SYSTEMS INC.
发明人： Ian Stewart , Darcy McGowan , Emerson Gallagher
IPC分类号： H01M8/0273 , H01M8/028 , H01M8/0286 , B29C45/14 , B29C45/00 , B29K21/00
摘要： 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.

4. 发明授权

US10895604B2 Reduced stack voltage circuitry for energy storage system diagnostics 有权
公开(公告)号：US10895604B2
公开(公告)日：2021-01-19
申请号：US15744470
申请日：2016-07-13
申请人： Ballard Power Systems Inc. , Simon Fraser University
发明人： Jacob W. Devaal , Hooman Homayouni , Farid Golnaraghi
IPC分类号： G01R31/389 , G01R31/3835 , G01N27/02 , G01N27/416 , H01M8/1018 , H03L5/00
摘要： Systems and methods to provide a low voltage interface coupleable between an energy storage device or a DC power source (e.g., fuel cell stack, battery) and one or more AC signal diagnostic systems. The low voltage interface reduces a voltage of the DC power source and supplies the reduced voltage to the one or more AC signal diagnostic systems without affecting the results of the measurements obtained by the one or more AC signal diagnostic systems. Such functionality provides a safer method for performing advanced analysis (e.g., EIS, frequency analysis) while utilizing lower cost and/or smaller components.

5. 发明授权

US10892509B2 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
申请人： BALLARD POWER SYSTEMS INC.
发明人： David Myers , George Skinner , Emerson R. Gallagher
IPC分类号： H01M8/248 , H01M8/1018
摘要： 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.

6. 发明授权

US10581099B2 Use of neural network and EIS signal analysis to quantify H2 crossover in-situ in operating PEM cells 有权
公开(公告)号：US10581099B2
公开(公告)日：2020-03-03
申请号：US15240944
申请日：2016-08-18
申请人： BALLARD POWER SYSTEMS INC. , SIMON FRASER UNIVERSITY
发明人： Ghassan Hassan Mousa , Jacob William De Vaal , Farid Golnaraghi
IPC分类号： H01M8/04664 , H01M8/0438 , H01M8/0444 , H01M8/04537 , G01M3/40 , H01M8/1018 , G01N27/02 , G06N3/08
摘要： Methods for detecting a hydrogen leak and quantifying a rate of the same in a polymer electrolyte membrane fuel cell stack are provided, as well as a fuel cell diagnostic apparatus that diagnoses a hydrogen leak in a fuel cell stack.

7. 发明申请

US20150288005A1 LOW COST FUEL CELL COMPONENTS 审中-公开
标题翻译：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
申请人： Ballard Power Systems Inc.
发明人： Timothy W. Patterson , Thomas H. Madden , Robert M. Darling , Glenn M. Allen
IPC分类号： H01M8/04 , H01M8/10
CPC分类号： 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
摘要： 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.
摘要翻译：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）。

8. 发明申请

US20150266028A1 FUEL CELL MEMBRANE ELECTRODE ASSEMBLY FABRICATION PROCESS 审中-公开
标题翻译：燃料电池电极组件制造工艺
公开(公告)号：US20150266028A1
公开(公告)日：2015-09-24
申请号：US14435654
申请日：2012-10-26
申请人： BALLARD POWER SYSTEMS INC.
发明人： Jesse M. Marzullo , William J. Bajorek
IPC分类号： B02C19/18 , H01M4/88 , H01M8/10 , B01F5/06
CPC分类号： B02C19/18 , B01F5/0665 , B01F2215/0059 , H01M4/8828 , H01M8/1004 , H01M2008/1095
摘要： An exemplary method of processing a catalyst ink includes ultrasonicating the catalyst ink. The exemplary method includes high shear mixing the catalyst ink.
摘要翻译：处理催化剂油墨的示例性方法包括使催化剂油墨超声波化。该示例性方法包括高剪切混合催化剂油墨。

9. 发明授权

US08771885B2 Circulation of biphase fuel cell coolant 有权
标题翻译：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
申请人： Ballard Power Systems Inc.
发明人： Michael L. Perry , Robert M. Darling
IPC分类号： H01M8/06
CPC分类号： H01M8/04014 , H01M8/04029 , H01M8/04044 , H01M8/04074 , H01M8/04097 , H01M8/04164 , H01M8/04179 , H01M8/04253 , H01M8/04291 , H01M2008/1095 , H01M2250/20 , Y02T90/32
摘要： 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.
摘要翻译：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。

10. 发明申请

US20040231530A1 Apparatus for embossing expanded graphite sheet material under reduced pressure 审中-公开
标题翻译：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
申请人： Ballard Power Systems Inc.
发明人： Donald A. Lines , Nicholas A. Fletcher , Eric G. Pow , Michael Sexsmith , Bill Gray , Horst Thumm
IPC分类号： B41F019/02
CPC分类号： 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
摘要： 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.
摘要翻译：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。

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