Apparatus and methods for sensor-less optimization of methanol concentration in a direct methanol fuel cell system
    2.
    发明授权
    Apparatus and methods for sensor-less optimization of methanol concentration in a direct methanol fuel cell system 有权
    直接甲醇燃料电池系统中无甲醇浓度优化的装置和方法

    公开(公告)号:US06824899B2

    公开(公告)日:2004-11-30

    申请号:US10040502

    申请日:2001-11-09

    IPC分类号: H01M800

    CPC分类号: H01M8/04194 H01M8/04291

    摘要: Apparatus and methods for regulating methanol concentration in a direct methanol fuel cell system without the need for a methanol concentration sensor. One or more operating characteristics of the fuel cell, such as the potential across the load, open circuit potential, potential at the anode proximate to the end of the fuel flow path or short circuit current of the fuel cell, are used to actively control the methanol concentration.

    摘要翻译: 在直接甲醇燃料电池系统中调节甲醇浓度的装置和方法,而不需要甲醇浓度传感器。 燃料电池的一个或多个操作特性,例如负载电位,开路电位,靠近燃料流路端部的阳极电位或燃料电池的短路电流,被用于主动地控制 甲醇浓度。

    Conformable fuel cell
    4.
    发明授权
    Conformable fuel cell 失效
    符合要求的燃料电池

    公开(公告)号:US07510794B2

    公开(公告)日:2009-03-31

    申请号:US10791101

    申请日:2004-03-02

    IPC分类号: H01M8/02 H01M8/10

    摘要: A conformable fuel cell is provided which includes a basic structure that provides flexibility while providing a high compression along the active surface of the fuel cell's membrane electrode assembly, which can be achieved by an injection-molded frame. A suitable fuel is delivered to the anode aspect of the fuel cell. Effective water management could also be provided by appropriate diffusion layers. The fuel cell can be contour-molded to a desired shape, or can be constructed of an array of flexibly connected individual fuel cells that overall have a curvilinear shape, or can be constructed as a pliable fuel cell that can be incorporated into an application device or an article of clothing.

    摘要翻译: 提供了一种适应性的燃料电池,其包括提供柔性的基本结构,同时沿着燃料电池的膜电极组件的活性表面提供高压缩性,这可以通过注射成型的框架来实现。 合适的燃料被输送到燃料电池的阳极方面。 有效的水管理也可以由适当的扩散层提供。 燃料电池可以被轮廓模制成所需的形状,或者可以由整体上具有曲线形状的柔性连接的单个燃料电池的阵列构成,或者可以被构造为可并入到应用装置中的柔性燃料电池 或一件衣服。

    Modified diffusion layer for use in a fuel cell system
    6.
    发明授权
    Modified diffusion layer for use in a fuel cell system 失效
    用于燃料电池系统的改性扩散层

    公开(公告)号:US07179501B2

    公开(公告)日:2007-02-20

    申请号:US11026728

    申请日:2005-04-13

    摘要: A fuel cell diffusion layer providing a preferential path by which liquid reactants or byproducts may be supplied to or removed from a direct oxidation fuel cell is described. The modified diffusion layer will be typically on the cathode side of the fuel cell and its use is to eliminate or minimize flooding of the cathode diffusion layer area, which is a performance limiting condition in direct methanol fuel cells. In accordance with one embodiment of the invention, the diffusion layer includes a substrate that is coated with a microporous layer. A pattern may be embossed into the diffusion layer, to create preferential flow paths by which water will travel and thereby be removed from the cathode catalyst area. This avoids cathode flooding and avoids build up of potentially destructive pressure by possible cathodic water accumulation. This also provides a means for collecting cathode water for redirection In accordance with another aspect of the invention, the preferential path is established by applying a thicker microporous layer to the carbon cloth or carbon paper and drying it in such a fashion so that when it dries, the surface of the microporous layer cracks to provide the pathways.

    摘要翻译: 描述了提供可以向直接氧化燃料电池供应或从直接氧化燃料电池移除液体反应物或副产物的优选路径的燃料电池扩散层。 改性扩散层通常在燃料电池的阴极侧,其用途是消除或最小化阴极扩散层面积的泛化,这是直接甲醇燃料电池中的性能限制条件。 根据本发明的一个实施例,扩散层包括涂覆有微孔层的基底。 图案可以被压印到扩散层中,以产生优选的流动路径,水将通过该路径移动,从而从阴极催化剂区域移除。 这样可以避免阴极淹没,并避免潜在的破坏性压力由可能的阴极水积聚造成。 这也提供了用于收集用于重定向的阴极水的方法。根据本发明的另一方面,优选路径是通过对碳布或碳纸施加较厚的微孔层并以这样的方式干燥来建立的: ,微孔层的表面裂纹提供通路。

    Conducting polymer ultracapacitor
    8.
    发明授权
    Conducting polymer ultracapacitor 失效
    导电聚合物超级电容器

    公开(公告)号:US06356433B1

    公开(公告)日:2002-03-12

    申请号:US09653621

    申请日:2000-08-31

    IPC分类号: H01G900

    摘要: A sealed ultracapacitor assembly is formed with first and second electrodes of first and second conducting polymers electrodeposited on porous carbon paper substrates, where the first and second electrodes each define first and second exterior surfaces and first and second opposing surfaces. First and second current collector plates are bonded to the first and second exterior surfaces, respectively. A porous membrane separates the first and second opposing surfaces, with a liquid electrolyte impregnating the insulating membrane. A gasket formed of a thermoplastic material surrounds the first and second electrodes and seals between the first and second current collector plates for containing the liquid electrolyte.

    摘要翻译: 密封的超级电容器组件形成有电沉积在多孔碳纸基底上的第一和第二导电聚合物的第一和第二电极,其中第一和第二电极各自限定第一和第二外表面以及第一和第二相对表面。 第一和第二集电板分别结合到第一和第二外表面。 多孔膜用浸渍绝缘膜的液体电解质分离第一和第二相对表面。 由热塑性材料形成的垫圈包围第一和第二电极,并在第一和第二集电板之间密封以容纳液体电解质。

    Oxygen-consuming chlor alkali cell configured to minimize peroxide formation
    10.
    发明授权
    Oxygen-consuming chlor alkali cell configured to minimize peroxide formation 失效
    耗氧氯碱池被配置为最小化过氧化物形成

    公开(公告)号:US07083708B2

    公开(公告)日:2006-08-01

    申请号:US10631073

    申请日:2003-07-31

    IPC分类号: C25B9/10

    摘要: Oxygen-consuming zero gap chlor-alkali cell was configured to minimize peroxide formation. The cell included an ion-exchange membrane that divided the cell into an anode chamber including an anode and a cathode chamber including an oxygen gas diffusion cathode. The cathode included a single-piece of electrically conducting graphitized carbon cloth. Catalyst and polytetrafluoroethylene were attached to only one side of the cloth. When the cathode was positioned against the cation exchange membrane with the catalyst side away from the membrane, electrolysis of sodium chloride to chlorine and caustic (sodium hydroxide) proceeded with minimal peroxide formation.

    摘要翻译: 耗氧的零间隙氯碱电池被配置成使过氧化物形成最小化。 电池包括将电池分成包括阳极的阳极室和包括氧气扩散阴极的阴极室的离子交换膜。 阴极包括单片导电石墨化碳布。 催化剂和聚四氟乙烯仅附着在布的一侧。 当阴极靠近阳离子交换膜而使催化剂侧远离膜时,氯化钠电解为氯和苛性碱(氢氧化钠)进行了最小的过氧化物形成。