Self-humidifying fuel cell
    1.
    发明授权
    Self-humidifying fuel cell 有权
    自加油燃料电池

    公开(公告)号:US06207312B1

    公开(公告)日:2001-03-27

    申请号:US09156714

    申请日:1998-09-18

    IPC分类号: H01M800

    摘要: A self-humidifying polymer electrolyte membrane (PEM) fuel cell assembly has an ion-exchange membrane interposed between hydrogen and oxygen diffusion layers to form a membrane electrode assembly (MEA). The MEA is in turn interposed between a pair of current collector plates having flow field channels for flowing the reactants adjacent the respective diffusion layers to produce corresponding anodic and cathodic electrochemical reactions. Various embodiments of the assembly incorporate one or more of the following features: interdigitated flow field channels, countercurrent reactant flows, opposing channel alignment, and uncatalyzed membrane hydration enhancement zones.

    摘要翻译: 自加湿聚合物电解质膜(PEM)燃料电池组件具有介于氢和氧扩散层之间的离子交换膜,以形成膜电极组件(MEA)。 MEA又插入在具有流场通道的一对集电板之间,用于使邻近相应扩散层的反应物流动,以产生相应的阳极和阴极电化学反应。 组件的各种实施例包含一个或多个以下特征:交错流场通道,逆流反应物流,相对的通道对准和未催化的膜水合增强区。

    Fuel cell collector plates with improved mass transfer channels
    2.
    发明授权
    Fuel cell collector plates with improved mass transfer channels 有权
    具有改进质量传递通道的燃料电池收集板

    公开(公告)号:US06551736B1

    公开(公告)日:2003-04-22

    申请号:US09702126

    申请日:2000-10-30

    IPC分类号: H01M804

    摘要: A fuel cell collector plate can be provided with one or more various channel constructions for the transport of reactants to the gas diffusion layer and the removal of water therefrom. The outlet channel can be arranged to have a reduced volume compared to the inlet channel, in both interdigitated and discontinuous spiral applications. The land width between an inlet channel and outlet channel can be reduced to improved mass flow rate in regions of deleted reactant concentrations. Additionally or alternatively, the depth of the inlet channel can be reduced in the direction of flow to reduce the diffusion path as the concentration of reactant is reduced.

    摘要翻译: 燃料电池收集板可以设置有用于将反应物输送到气体扩散层和从其中除去水的一种或多种各种通道结构。 出口通道可以布置成在叉指和螺旋应用中都与入口通道相比具有减小的体积。 入口通道和出口通道之间的平面宽度可以减少到在缺失的反应物浓度区域内改善的质量流量。 附加地或替代地,可以在流动方向上减小入口通道的深度,以减少反应物浓度降低扩散路径。

    Electrochemical Cell Stack Design
    3.
    发明申请
    Electrochemical Cell Stack Design 审中-公开
    电化学电池堆设计

    公开(公告)号:US20060199056A1

    公开(公告)日:2006-09-07

    申请号:US11419053

    申请日:2006-05-18

    IPC分类号: H01M8/04 H01M8/10 H01M8/02

    摘要: In one embodiment, an electrochemical cell comprises: a membrane electrode assembly comprising a first active area and an opposingly positioned second active area, and a flow field support member disposed adjacent to said membrane electrode assembly. Each of the active areas comprises an electrode, and has a length to width ratio configured such that, during use of the electrochemical cell, a temperature differential measured across the shortest distance from a center of the active areas to an edge of the active areas is less than about 15° C. The flow field support member has a flow region that aligns with either the first active area or the second active area.

    摘要翻译: 在一个实施例中,电化学电池包括:膜电极组件,其包括第一有源区域和相对定位的第二有源区域,以及邻近所述膜电极组件设置的流场支撑构件。 每个有源区域包括电极,并且具有长宽比配置,使得在电化学电池的使用期间,在从有源区域的中心到有源区域的边缘的最短距离处测量的温度差是 小于约15℃。流场支撑构件具有与第一活动区域或第二活动区域对准的流动区域。

    Electrochemical hydrogen compressor for electrochemical cell system and method for controlling
    4.
    发明授权
    Electrochemical hydrogen compressor for electrochemical cell system and method for controlling 有权
    用于电化学电池系统的电化学氢压缩机及其控制方法

    公开(公告)号:US06994929B2

    公开(公告)日:2006-02-07

    申请号:US10248470

    申请日:2003-01-22

    IPC分类号: H01M8/04 C25B1/02 C25B9/00

    摘要: In one embodiment, an electrochemical cell system comprises: a fuel cell stack comprising a fuel cell having a fuel cell hydrogen inlet and a fuel cell hydrogen outlet, and a first electrochemical hydrogen compressor in fluid communication with the fuel cell hydrogen outlet, wherein the first electrochemical hydrogen compressor comprises electrodes in electrical communication with an electricity source, and a compressed hydrogen outlet in fluid communication with the fuel cell hydrogen inlet. In one embodiment, the method of operating the electrochemical cell system comprises: introducing hydrogen feed to a fuel cell at a feed rate of greater than stoichiometry, directing excess hydrogen from the fuel cell to a first electrochemical hydrogen compressor, electrochemically compressing the excess hydrogen to compressed hydrogen, and recirculating the compressed hydrogen gas to the fuel cell.

    摘要翻译: 在一个实施例中,电化学电池系统包括:燃料电池堆,其包括具有燃料电池氢入口和燃料电池氢出口的燃料电池,以及与所述燃料电池氢出口流体连通的第一电化学氢气压缩机,其中所述第一 电化学氢气压缩机包括与电源电连通的电极和与燃料电池氢气入口流体连通的压缩氢气出口。 在一个实施方案中,操作电化学电池系统的方法包括:以大于化学计量的进料速率将氢气进料引入燃料电池,将过量的氢从燃料电池引导到第一电化学氢气压缩机,将过量氢气电化学压缩 压缩氢气,并将压缩的氢气再循环到燃料电池。

    Compact, modular regenerative fuel cell
    5.
    发明申请
    Compact, modular regenerative fuel cell 审中-公开
    紧凑的模块化再生式燃料电池

    公开(公告)号:US20070172715A1

    公开(公告)日:2007-07-26

    申请号:US11643073

    申请日:2006-12-21

    IPC分类号: H01M8/04 H01M8/18

    摘要: The invention provides a fuel cell system. The fuel cell system can include a modular power section, the power section including at least one power module, and at least one modular energy storage section, the energy storage section including at least one reactant storage module. The power section can include a plurality of power modules. Similarly, the energy storage section can include a plurality of reactant storage modules. At least one of the power module and reactant storage module can include fluids quick disconnect fittings to operably couple the module to the fuel cell system to facilitate modular operation. In accordance with a further aspect, the system can further include a regeneration section, the regeneration section having an electrolyzer configured and adapted to dissociate water received from the power module into hydrogen and oxygen by way of a fluids manifold.

    摘要翻译: 本发明提供一种燃料电池系统。 燃料电池系统可以包括模块化功率部分,功率部分包括至少一个功率模块和至少一个模块化能量存储部分,所述能量存储部分包括至少一个反应物储存模块。 功率部分可以包括多个功率模块。 类似地,能量存储部分可以包括多个反应物储存模块。 功率模块和反应物存储模块中的至少一个可以包括流体快速断开配件,以将模块可操作地耦合到燃料电池系统以促进模块化操作。 根据另一方面,所述系统还可包括再生部分,所述再生部分具有电解槽,所述电解器被配置并适于通过流体歧管将从功率模块接收的水分离成氢气和氧气。

    Compression Devices and Electrochemical Cell Stack Design
    6.
    发明申请
    Compression Devices and Electrochemical Cell Stack Design 审中-公开
    压缩装置和电化学电池堆设计

    公开(公告)号:US20060199067A1

    公开(公告)日:2006-09-07

    申请号:US11419057

    申请日:2006-05-18

    IPC分类号: H01M8/02

    摘要: In one embodiment a compression device comprises: a base plate having a surface, a spring support plate, a resilient member, a manifold, and a side plate. The resilient member is disposed between the spring support plate and the base plate in compressible mechanical communication with the base plate to enable a force to be imparted to the base plate in a direction normal to the surface. The side plate is disposed from the spring support plate to the manifold, wherein the side plate physically engages a periphery of the manifold and a periphery of the spring support plate.

    摘要翻译: 在一个实施例中,压缩装置包括:具有表面的基板,弹簧支撑板,弹性构件,歧管和侧板。 弹性构件设置在弹簧支撑板和基板之间,与基板可压缩机械地连通,以使得能够沿垂直于表面的方向向基板赋予力。 侧板从弹簧支撑板设置到歧管,其中侧板物理地接合歧管的周边和弹簧支承板的周边。

    Electrochemical cell system and method of operation
    7.
    发明授权
    Electrochemical cell system and method of operation 失效
    电化学电池系统及其运行方法

    公开(公告)号:US07153409B2

    公开(公告)日:2006-12-26

    申请号:US10456984

    申请日:2003-06-06

    IPC分类号: C25C1/02

    摘要: In one embodiment, the electrochemical system comprises an electrochemical cell and hydrogen storage in fluid communication with the hydrogen electrode, the hydrogen storage comprising at least one of carbon nanotubes and carbon nanofibers. In one embodiment, the method for operating an electrochemical cell system, comprises introducing water to an oxygen electrode and electrolyzing the water to form oxygen, hydrogen ions and electrons, wherein the hydrogen ions migrate to a hydrogen electrode. The hydrogen ions can then be reacted with the electrons to form hydrogen gas that is stored in at least one of carbon nanotubes and carbon nanofibers.

    摘要翻译: 在一个实施方案中,电化学系统包括与氢电极流体连通的电化学电池和氢存储,所述氢存储包含至少一种碳纳米管和碳纳米纤维。 在一个实施方案中,用于操作电化学电池系统的方法包括将水引入氧电极并电解水以形成氧,氢离子和电子,其中氢离子迁移到氢电极。 然后可以将氢离子与电子反应,形成储存在碳纳米管和碳纳米纤维中的至少一种中的氢气。

    Electrochemical Cell Stacks and Use Thereof
    8.
    发明申请
    Electrochemical Cell Stacks and Use Thereof 审中-公开
    电化学电池堆及其用途

    公开(公告)号:US20060199055A1

    公开(公告)日:2006-09-07

    申请号:US11419049

    申请日:2006-05-18

    IPC分类号: H01M8/04 H01M8/10

    摘要: In one embodiment, an electrochemical cell comprises: a first electrode and a second electrode with a membrane disposed therebetween to form a membrane electrode assembly, a bipolar plate disposed on a side of the membrane electrode assembly, and a thermistor element disposed proximate an edge of the bipolar plate. In one embodiment, a method of cooling an electrochemical cell comprises: radiating heat from a fin extending from an edge of a flow field support member of the electrochemical cell and flowing air along the fin to convectively remove heat from the flow field support member.

    摘要翻译: 在一个实施例中,电化学电池包括:第一电极和第二电极,其间设置有膜,以形成膜电极组件,设置在膜电极组件的侧面上的双极板和设置在膜电极组件的边缘附近的热敏电阻元件 双极板。 在一个实施例中,冷却电化学电池的方法包括:从电化学电池的流场支撑构件的边缘延伸的翅片辐射热量,并沿着翅片流动空气,以对流地从流场支撑构件移除热量。

    Method and apparatus for operating and controlling a power system
    9.
    发明申请
    Method and apparatus for operating and controlling a power system 审中-公开
    用于操作和控制电力系统的方法和装置

    公开(公告)号:US20050278076A1

    公开(公告)日:2005-12-15

    申请号:US11208174

    申请日:2005-08-19

    IPC分类号: G08C19/00 G08C19/16 H01M8/04

    CPC分类号: G08C19/00

    摘要: A fuel cell power system has a plurality of fuel cell power modules, a plurality of local controllers, and a master controller. Each fuel cell power module includes a fuel cell for generating electrical power, and each local controller controls one respective fuel cell power module. The master controller controls the local controllers.

    摘要翻译: 燃料电池电力系统具有多个燃料电池功率模块,多个本地控制器和主控制器。 每个燃料电池功率模块包括用于产生电力的燃料电池,并且每个本地控制器控制一个相应的燃料电池功率模块。 主控制器控制本地控制器。

    Method and apparatus for maintaining neutral water balance in a fuel cell system
    10.
    发明授权
    Method and apparatus for maintaining neutral water balance in a fuel cell system 有权
    在燃料电池系统中维持中性水平衡的方法和装置

    公开(公告)号:US06617065B2

    公开(公告)日:2003-09-09

    申请号:US09903044

    申请日:2001-07-11

    IPC分类号: H01M804

    摘要: In a fuel cell system, sufficient water to supply the consumption needs of the system, particularly by the system humidifiers and fuel processor, can be obtained from the exhaust of the fuel cell stack without the use of a condenser, by controlling the operating temperature of the fuel cell stack. The operating temperature can be controlled, for example, using a controller that monitors water level in the process water reservoir and increases or decreases the operating temperature through control of the fuel cell cooling system to maintain the water level within a predetermined range representative of neutral water balance in the system.

    摘要翻译: 在燃料电池系统中,通过控制燃料电池系统的工作温度,可以从燃料电池堆的排气中获得足够的水来提供系统的消耗需求,特别是系统加湿器和燃料处理器。 燃料电池堆。 可以例如使用控制器来控制工作温度,该控制器监视过程储水器中的水位,并且通过控制燃料电池冷却系统来提高或降低工作温度,以将水位维持在表示中性水的预定范围内 系统平衡。