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    • 6. 发明授权
    • Three dimensional single-chamber fuel cells
    • 三维单室燃料电池
    • US08691464B2
    • 2014-04-08
    • US12601388
    • 2008-05-23
    • Gerardo Jose Ia O'Serkan KocEthan J. CrumlinYang Shao-Horn
    • Gerardo Jose Ia O'Serkan KocEthan J. CrumlinYang Shao-Horn
    • H01M8/24
    • H01M8/2465
    • The present invention relates to single chamber fuel cells and systems and methods associated with the same. Architectures and materials that allow for high performance, enhanced fuel utilization, mechanical robustness, and mechanical flexibility are described. In some embodiments, multiple fuel cell units are arranged in a single chamber and may be, in some cases, connected to each other (e.g., connected in series, connected in parallel, etc.). Each fuel cell unit can be defined as one or more anode(s), one or more cathode(s), and an electrolyte able to maintain electrical separation between the anode(s) and cathode(s). The multiple fuel cell units are arranged in stacks in some cases. In one set of embodiments, the stacks of fuel cell units can be shaped and/or arranged to enhance the mixing of fuel and oxidant, thus improving distribution of reactants in the reaction zone. For example, the stacks of fuel cells may be arranged as fins within the fuel cell chamber. In addition, the stacks of fuel cells may be porous in some instances. In addition, the stacks of fuel cell units may be arranged to enhance other fluid flow parameters (e.g., residence time, reactant distribution, etc.). In some cases, the enhanced fluid flow may lead to increased fuel utilization and system efficiency.
    • 本发明涉及单室燃料电池及其相关的系统和方法。 描述了允许高性能,提高燃料利用率,机械稳定性和机械灵活性的体系结构和材料。 在一些实施例中,多个燃料电池单元布置在单个室中,并且在一些情况下可以彼此连接(例如,串联连接,并联连接等)。 每个燃料电池单元可以被定义为一个或多个阳极,一个或多个阴极和能够维持阳极和阴极之间的电分离的电解质。 在一些情况下,多个燃料电池单元被排列成堆叠。 在一组实施例中,燃料电池单元的堆叠可以被成形和/或布置成增强燃料和氧化剂的混合,从而改善反应物在反应区中的分布。 例如,燃料电池堆可以被布置为燃料电池室内的翅片。 此外,在一些情况下,燃料电池堆可以是多孔的。 此外,燃料电池单元的堆叠可以被布置成增强其它流体流动参数(例如,停留时间,反应物分布等)。 在一些情况下,增强的流体流动可以导致燃料利用率和系统效率的提高。
    • 9. 发明授权
    • Fiber structures including catalysts and methods associated with the same
    • 纤维结构包括催化剂和与之相关的方法
    • US07229944B2
    • 2007-06-12
    • US10898031
    • 2004-07-23
    • Yang Shao-HornJohn Paul KurpiewskiQuinn C. Horn
    • Yang Shao-HornJohn Paul KurpiewskiQuinn C. Horn
    • B01J21/18B01J23/00D01F9/12B32B9/00D02G9/00
    • H01M4/663D01D5/0038D01F1/02D01F9/14D01F9/20D01F9/24H01M4/90H01M4/9083H01M4/926Y10T428/2918
    • Fiber structures that include a catalytic material are provided. The fiber structures (e.g., membranes) may be formed of interconnected carbon fibers. The catalytic material may be in the form of nanosize particles supported on the fibers. In one method of the invention, the structures are produced by electrospinning a polymeric material fiber structure that is subsequently converted to a carbon fiber structure in a heat treatment step which also causes the catalytic material particles to nucleate on the carbon fibers and grow to a desired size. The catalytic material may be uniformly distributed across the carbon fiber structure and the amount of catalytic material may be controlled. These factors may enhance catalytic performance and/or enable using less catalytic material for equivalent catalytic performance which can lead to cost savings, amongst other advantages. The fiber structures may be used in a variety of applications including electrodes in batteries and fuel cells.
    • 提供了包括催化材料的纤维结构。 纤维结构(例如膜)可以由互连的碳纤维形成。 催化材料可以是支撑在纤维上的纳米尺寸颗粒的形式。 在本发明的一种方法中,通过静电纺丝聚合物材料纤维结构来制造结构,该结构随后在热处理步骤中转化为碳纤维结构,其也使催化材料颗粒在碳纤维上成核并生长至期望的 尺寸。 催化材料可以均匀地分布在碳纤维结构上,并且可以控制催化材料的量。 这些因素可以增强催化性能和/或使得能够使用较少催化材料用于等效的催化性能,这可以导致成本节省以及其他优点。 纤维结构可用于各种应用,包括电池和燃料电池中的电极。