Fuel-Cell Installation, Method For Activating and Deactivating Said Installation
    8.
    发明申请
    Fuel-Cell Installation, Method For Activating and Deactivating Said Installation 审中-公开
    燃料电池安装,激活和停用所述安装的方法

    公开(公告)号:US20080248348A1

    公开(公告)日:2008-10-09

    申请号:US10592979

    申请日:2005-03-16

    IPC分类号: H01M8/06 H01M8/10 H01M8/04

    摘要: The invention relates to a fuel-cell installation comprising: a reformer stage, which can be heated by a gas burner in order to carry out the water-vapour reformation of hydrocarbon and water-vapour into hydrogen and additional reformer products; at least one conversion stage, which is connected downstream of the reformer stage for the chemical preparation of the reformer products; and at least one fuel-cell stack, which is connected downstream of the conversion stage and comprises a plurality of anodes and cathodes with corresponding supply and discharge connections for converting the hydrogen into water to generate an electric current and heat. The fuel-cell stack is configured as a high-temperature fuel-cell stack with an operating temperature between about 100° C. and about 200° C., the conversion stage is connected on the output side, without heat exchange, to the supply connection of the anode of the fuel-cell stack and the discharge connection of the anode of the fuel-cell stack is connected to an air supply connection on the gas burner. During the activation and/or deactivation of the fuel-cell installation, the air that has flowed through the reformer stage and the conversion stage can be selectively supplied to the anode of the fuel cell stack.

    摘要翻译: 燃料电池装置技术领域本发明涉及一种燃料电池装置,包括:重整器级,其可由气体燃烧器加热,以便将烃和水蒸气的水蒸汽重整进氢气和另外的重整器产品; 至少一个转化阶段,其连接在重整器阶段的下游,用于重整产品的化学制备; 以及至少一个燃料电池堆,其连接在转换级的下游并且包括具有相应的供应和排出连接的多个阳极和阴极,用于将氢转化成水以产生电流和热量。 燃料电池堆构造为工作温度在约100℃至约200℃之间的高温燃料电池堆,转换级在输出侧连接而不进行热交换 燃料电池堆的阳极和燃料电池堆的阳极的排出连接的连接与气体燃烧器上的空气供应连接相连接。 在燃料电池装置的激活和/或停用期间,已经流过重整器级和转化级的空气可以选择性地供应到燃料电池堆的阳极。

    Fuel-Cell Stack Comprising an External Media Supply
    9.
    发明申请
    Fuel-Cell Stack Comprising an External Media Supply 审中-公开
    包含外部媒体供应的燃料电池堆

    公开(公告)号:US20080057376A1

    公开(公告)日:2008-03-06

    申请号:US11666968

    申请日:2005-11-08

    IPC分类号: H01M8/24

    摘要: The invention relates to a fuel-cell stack with an external media supply, comprising a plurality of stacked fuel-cell elements, each containing a proton-conductive polymer membrane, which is located between a flat anode electrode and a flat cathode electrode, each electrode being in contact with a separator plate containing canal structures for supplying a reaction gas, evacuating superfluous reaction gas and water that has been produced and/or for distributing a heat transfer medium. At least one collection/distribution container, which is connected to the canal structures of a plurality of separator plates, distributes the reaction gas or the heat transfer medium or collects superfluous reaction gas and water that has been produced or the heat transfer medium. The collection/distribution container is configured as a hood that covers a plurality of fuel-cell elements, the edge of said hood being sealed in relation to the covered elements. The seal comprises at least a first sealing layer that is configured as a solid seal and a second sealing layer, which is in direct contact with the covered fuel-cell elements and at least partially compensates the offsets between the neighbouring fuel-cell elements, the second sealing layer consisting of a highly viscous plastic with permanent plastic characteristics.

    摘要翻译: 本发明涉及一种具有外部介质供应的燃料电池堆,包括多个层叠的燃料电池元件,每个包含位于平阳极和平阴极之间的质子传导聚合物膜,每个电极 与包含用于供应反应气体的管道结构的隔板接触,抽空多余的反应气体和已经生产和/或分配传热介质的水。 至少一个连接到多个隔板的管道结构的收集/分配容器分配反应气体或传热介质或收集已经产生的多余的反应气体和水或传热介质。 收集/分配容器被构造为覆盖多个燃料电池元件的罩,所述罩的边缘相对于被覆盖元件被密封。 密封件至少包括构造为固体密封件的第一密封层和与被覆盖的燃料电池元件直接接触并且至少部分补偿邻近的燃料电池元件之间的偏移的第二密封层, 第二密封层由具有永久塑性特性的高粘度塑料组成。

    Gas diffusion electrodes, method for the production of gas diffusion electrodes, and fuel cells using said gas diffusion electrodes
    10.
    发明申请
    Gas diffusion electrodes, method for the production of gas diffusion electrodes, and fuel cells using said gas diffusion electrodes 审中-公开
    气体扩散电极,制造气体扩散电极的方法,以及使用所述气体扩散电极的燃料电池

    公开(公告)号:US20070154778A1

    公开(公告)日:2007-07-05

    申请号:US11650460

    申请日:2007-01-08

    IPC分类号: H01M4/94 H01M4/92 H01M4/88

    摘要: Gas diffusion electrodes with improved proton conduction between an electrocatalyst located in a catalyst layer and an adjacent polymer electrolyte membrane, capable of being used at operating temperatures up to or above the boiling point of water, ensuring lasting high gas permeability. Also, a production method and corresponding fuel cells. At least one part of the particles of an electrically conductive carrier material in the catalyst layer is at least partially loaded with at least one porous, proton-conducting polymer which can be used up to or above the boiling point of water. Loading and development of the porous structure is carried out in a phase inversion method. The gas diffusion electrodes can be used in high temperature fuel cells working at temperatures up to or above the boiling temperature of water without a drop in performance in continuous operation.

    摘要翻译: 在位于催化剂层的电催化剂层和相邻的聚合物电解质膜之间具有改善质子传导性的气体扩散电极,能够在高于或高于水沸点的操作温度下使用,确保持久的高透气性。 另外还有一种生产方法和相应的燃料电池。 催化剂层中至少一部分导电载体材料的颗粒至少部分地装有至少一种多孔质子导电聚合物,其可以在水的沸点以上使用。 多相结构的加载和开发以相位反转法进行。 气体扩散电极可以用于在高于或高于水的沸点温度的温度下工作的高温燃料电池,而不会在连续操作中性能下降。