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    FUEL CELL SYSTEM
    31.
    发明申请
    FUEL CELL SYSTEM 审中-公开
    燃油电池系统

    公开(公告)号：US20140322619A1

    公开(公告)日：2014-10-30

    申请号：US13872232

    申请日：2013-04-29

    Applicant: Ballard Power Systems Inc.

    Inventor： Yao LIN ,  Kazuo SAITO ,  Raghothama Madhusudana RAO ,  Sandeep Kisan GOUD

    IPC: H01M8/04 ,  H01M8/10 ,  H01M8/06

    CPC classification number: H01M8/04014 ,  H01M8/04067 ,  H01M8/04097 ,  H01M8/0675 ,  H01M2008/1095

    Abstract: According to an embodiment, a fuel cell system includes an anode supply circuit is configured for delivering an anode source fluid to anode components. The anode supply circuit includes a primary supply path, a desulfurizer situated along the primary supply path, and a pre-reformer downstream of the desulfurizer and upstream of the anode components. The pre-reformer converts a portion of anode source fluid into an anode reactant and yields a reformed source fluid that includes the anode reactant. A first feedback path carries anode exhaust fluid from the anode components such that at least some heat associated with the anode exhaust fluid facilitates the pre-reformer converting at least some anode source fluid into the anode reactant. A second feedback path carries at least a portion of the reformed source fluid to be mixed with the anode source fluid provided to the desulfurizer.

    Abstract translation: 根据实施例，燃料电池系统包括阳极供应电路，其构造为将阳极源流体输送到阳极部件。 阳极供应电路包括主供应路径，沿着主供应路径设置的脱硫器，以及在脱硫器下游和阳极部件上游的预重整器。 预重整器将阳极源流体的一部分转化为阳极反应物并产生包含阳极反应物的重整源流体。 第一反馈路径承载来自阳极组件的阳极排出流体，使得与阳极废气流体相关联的至少一些热促进预重整器将至少一些阳极源流体转化为阳极反应物。 第二反馈路径承载要与提供给脱硫器的阳极源流体混合的重整源流体的至少一部分。

    Electrochemical fuel cell with fluid distribution layer having non-uniform permeability
    32.
    发明申请
    Electrochemical fuel cell with fluid distribution layer having non-uniform permeability 失效
    具有不均匀渗透性的流体分布层的电化学燃料电池

    公开(公告)号：US20040253504A1

    公开(公告)日：2004-12-16

    申请号：US10458760

    申请日：2003-06-10

    Applicant: Ballard Power Systems Inc.

    Inventor： Alexander Mossman ,  Emerson R. Gallagher

    IPC: H01M008/02 ,  H01M008/10

    CPC classification number: H01M8/0234 ,  H01M4/861 ,  H01M8/04014 ,  H01M8/04126 ,  H01M8/1007

    Abstract: An electrochemical fuel cell comprises an anode electrocatalyst layer, a cathode electrocatalyst layer, a polymer electrolyte membrane interposed between the anode and cathode electrocatalyst layers, an anode flow field plate, a cathode flow field plate, an anode fluid distribution layer interposed between the anode flow field plate and the anode electrocatalyst layer, and a cathode fluid distribution layer interposed between the cathode flow field plate and the cathode electrocatalyst layer, wherein at least one of the anode and cathode fluid distribution layers decreases in permeability from an inlet to an outlet of the electrochemical fuel cell. Methods for making a substantially fluid impermeable sheet material having a non-uniform pattern of perforations are also provided.

    Abstract translation: 电化学燃料电池包括阳极电催化剂层，阴极电催化剂层，介于阳极和阴极电催化剂层之间的聚合物电解质膜，阳极流场板，阴极流场板，介于阳极流动之间的阳极流体分布层 场板和阳极电催化剂层，以及插入在阴极流场板和阴极电催化剂层之间的阴极流体分布层，其中阳极和阴极流体分布层中的至少一个从导入口到出口的渗透性降低 电化学燃料电池 还提供了制造具有不均匀穿孔图案的基本流体的不透水片材的方法。

    Antifreeze cooling subsystem
    33.
    发明申请
    Antifreeze cooling subsystem 有权
    防冻冷却子系统

    公开(公告)号：US20040224201A1

    公开(公告)日：2004-11-11

    申请号：US10865630

    申请日：2004-06-10

    Applicant: Ballard Power Systems Inc.

    Inventor： Jean St-Pierre ,  Stephen A. Campbell ,  Mark K. Watson ,  Michael P. Sexsmith ,  Monika Derflinger ,  Gerald Hornburg

    IPC: H01M008/04 ,  H01M008/10

    CPC classification number: B60L11/1892 ,  B60L11/1881 ,  B60L11/1894 ,  F01P11/06 ,  F01P2011/066 ,  F01P2025/80 ,  H01M8/04029 ,  H01M8/04044 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02T90/34

    Abstract: Liquid cooled systems having coolant circulation loops must often operate in below freezing conditions. For instance, in various applications certain fuel cell systems must be able to tolerate repeated shutdown and storage in below freezing conditions. Conventional glycol-based coolants typically used for internal combustion engines are generally unsuitable for use in the associated fuel cell cooling subsystems due to the presence of additives and/or inhibitors which are normally included to deal with problems relating to decomposition of the glycol. With additives or inhibitors present, the coolant conductivity can be sufficiently high as to result in electrical shorting or corrosion problems. However, provided the purity of the coolant is maintained, a pure glycol and water coolant mixture may be used as a fuel cell system coolant to obtain suitable antifreeze protection. Adequate purity can be maintained by including an ion exchange resin unit in the cooling subsystem.

    Abstract translation: 具有冷却剂循环回路的液体冷却系统必须经常在低于冰点条件下运行。 例如，在各种应用中，某些燃料电池系统必须能够在低于冰点条件下耐受重复停机和储存。 通常用于内燃机的常规的基于二醇的冷却剂通常不适合用于相关联的燃料电池冷却子系统中，这是由于通常包括用于处理与二醇分解有关的问题的添加剂和/或抑制剂的存在。 存在的添加剂或抑制剂时，冷却剂导电性可以足够高以致导致电短路或腐蚀问题。 然而，只要保持冷却剂的纯度，可以使用纯二醇和水冷却剂混合物作为燃料电池系统冷却剂以获得合适的防冻保护。 通过在冷却子系统中包括离子交换树脂单元可以保持足够的纯度。

    Membrane electrode assembly with integrated seal
    35.
    发明申请
    Membrane electrode assembly with integrated seal 有权
    具有集成密封的膜电极组件

    公开(公告)号：US20040191604A1

    公开(公告)日：2004-09-30

    申请号：US10395874

    申请日：2003-03-24

    Applicant: Ballard Power Systems Inc.

    Inventor： Robert H. Artibise ,  Simon Farrington

    IPC: H01M002/08 ,  H01M008/10

    CPC classification number: H01M8/1004 ,  H01M4/8605 ,  H01M8/0276 ,  H01M8/0284 ,  H01M8/248 ,  Y10T428/31797

    Abstract: A membrane electrode assembly with an improved integrated seal comprises an edge seal having an inboard pad attached to the edge of the electrodes, a flexible coupling adjacent the pad, and a sealing element adjacent the coupling. The sealing element is significantly thicker than the pad, and the flexible coupling isolates the pad from stress experienced in the sealing element. Thus, greater compression can be applied to the sealing element, thereby providing an improved and more reliable seal, without overly compressing and damaging the attached pad.

    Abstract translation: 具有改进的集成密封件的膜电极组件包括边缘密封件，其具有附接到电极的边缘的内侧焊盘，邻近焊盘的柔性联接件以及与联接件相邻的密封元件。 密封元件比衬垫明显更厚，柔性联接器将衬垫与密封元件中经受的应力隔离。 因此，可以对密封元件施加更大的压缩，从而提供改进的和更可靠的密封，而不会过度压缩和损坏连接的垫。

    Reactant feed apparatus for direct feed fuel cells and methods related thereto
    36.
    发明申请
    Reactant feed apparatus for direct feed fuel cells and methods related thereto 审中-公开
    用于直接进料燃料电池的反应物进料装置及其相关方法

    公开(公告)号：US20040131898A1

    公开(公告)日：2004-07-08

    申请号：US10337921

    申请日：2003-01-06

    Applicant: Ballard Power Systems Inc.

    Inventor： Jiujun Zhang ,  Kevin M. Colbow ,  Alvin N. L. Lee ,  Bruce Lin

    IPC: H01M008/00

    CPC classification number: H01M8/0263 ,  H01M8/0258 ,  H01M8/04186 ,  H01M8/1011 ,  Y02E60/523

    Abstract: Disclosed are reactant feed apparatus for liquid-fueled direct feed fuel cells, including miniaturized versions thereof. More specifically, disclosed is a fuel flow device for delivering liquid fuel to such direct feed fuel cells. The fuel flow device comprises a fuel flow-routing device and an enclosure/partition assembly containing the liquid fuel to be delivered. When the fuel flow device is fluidly connected to the fuel cell, it operates to deliver the liquid fuel to an anode flow field thereof by using the pressurized anodic exhaust gases exiting therefrom as the source of power for pumping the liquid fuel from the enclosure into the fuel cell. Also disclosed is a cathode flow field plate that utilizes an array of island members to provide multi-directional oxidant flow channels and expedite the passive delivery of oxidant to, and removal of product water from, a cathode flow field of a liquid-fueled direct feed fuel cell. Further, disclosed are methods for delivering liquid fuel and oxidant to the fuel cells using the above-disclosed devices.

    Abstract translation: 公开了用于液体燃料的直接进料燃料电池的反应物进料装置，包括其小型化形式。 更具体地，公开了一种用于将液体燃料输送到这种直接进料燃料电池的燃料流动装置。 燃料流动装置包括燃料流动路径装置和包含要输送的液体燃料的外壳/分隔组件。 当燃料流动装置流体地连接到燃料电池时，其操作以通过使用从其离开的加压阳极废气将液体燃料输送到其阳极流场，作为将液体燃料从外壳泵送到 燃料电池。 还公开了一种阴极流场板，其利用岛状构件阵列来提供多方向氧化剂流动通道并且加速氧化剂的无源输送和从液体燃料直接进料的阴极流场中除去产物水 燃料电池。 此外，公开了使用上述设备将液体燃料和氧化剂输送到燃料电池的方法。

    Distribution of non-odorized gas
    37.
    发明申请
    Distribution of non-odorized gas 审中-公开
    分布无臭气体

    公开(公告)号：US20040084083A1

    公开(公告)日：2004-05-06

    申请号：US10621107

    申请日：2003-07-15

    Applicant: Ballard Power Systems Inc.

    Inventor： Martin Pearson

    IPC: E03B001/00

    CPC classification number: G01M3/04 ,  C01B3/00 ,  H01M8/04201 ,  Y10T137/5762

    Abstract: The present invention is generally directed to systems and methods for distributing a non-odorized gas. In one embodiment, an inner pipe containing a non-odorized gas at a first pressure is routed through an outer pipe adapted to contain an odorized fluid at a second pressure less than the first pressure. As a result of the pressure differential, a leak in the inner pipe will not permit the odorized fluid in the outer pipe to flow into the inner pipe. When the non-odorized gas is hydrogen, this prevents a stream of hydrogen gas that is possibly contaminated with odorants from reaching a fuel cell. Furthermore, a leak in the outer pipe or a leak in both the inner and outer pipes will result in the release of the odorized fluid into the environment, allowing leaks to be detected before dangerous or harmful levels are reached.

    Abstract translation: 本发明一般涉及用于分配非加臭气体的系统和方法。 在一个实施例中，在第一压力下含有非加臭气体的内管通过适于容纳低于第一压力的第二压力的加臭流体的外管。 由于压力差，内管的泄漏将不允许外管中的加臭流体流入内管。 当无臭气体是氢气时，这防止可能被气味剂污染的氢气流到达燃料电池。 此外，外管中的泄漏或内管和外管两者的泄漏将导致加臭的流体释放到环境中，从而在达到危险或有害水平之前检测泄漏。

    Direct dimethoxymethane and methanol fuel cells
    39.
    发明申请
    Direct dimethoxymethane and methanol fuel cells 审中-公开
    直接二甲氧基甲烷和甲醇燃料电池

    公开(公告)号：US20040033397A1

    公开(公告)日：2004-02-19

    申请号：US10218698

    申请日：2002-08-14

    Applicant: Ballard Power Systems Inc.

    Inventor： Kevin Colbow ,  Jiujun Zhang ,  Kyoung Bai

    IPC: H01M008/08

    CPC classification number: H01M8/04186 ,  H01M8/04223 ,  H01M8/241

    Abstract: Solid polymer fuel cells can operate directly on a fuel comprising a mixture of dimethoxymethane and methanol with both dimethoxymethane and methanol being oxidized at the fuel cell anode. Both being highly soluble in water, a dimethoxymethane and methanol mixture can be supplied as a liquid aqueous fuel solution. As a fuel, a dimethoxymethane and methanol mixture can provide similar power characteristics as methanol in liquid feed solid polymer fuel cells and is found to outperform methanol at high current densities. Additionally, dimethoxymethane acts as a reactive antifreeze additive in the fuel mixture and imparts a strong and distinct odor to the fuel mixture.

    Abstract translation: 固体聚合物燃料电池可以直接在包含二甲氧基甲烷和甲醇的混合物的燃料上操作，二甲氧基甲烷和甲醇在燃料电池阳极处被氧化。 两者都高度溶于水，二甲氧基甲烷和甲醇混合物可作为液体水性燃料溶液提供。 作为燃料，二甲氧基甲烷和甲醇混合物可以提供与液体进料固体聚合物燃料电池中的甲醇相似的功率特性，并发现其在高电流密度下优于甲醇。 此外，二甲氧基甲烷在燃料混合物中起反应性防冻添加剂的作用，并赋予燃料混合物强烈和独特的气味。

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