Sealless radial solid oxide fuel cell stack design
    1.
    发明授权
    Sealless radial solid oxide fuel cell stack design 有权
    无密封径向固体氧化物燃料电池堆设计

    公开(公告)号:US06677069B1

    公开(公告)日:2004-01-13

    申请号:US09642746

    申请日:2000-08-18

    IPC分类号: H01M802

    摘要: A sealless, planar fuel cell stack system, including a continuous bottom plate, a first permeable or interconnect layer, a continuous cell, a second permeable or interconnect layer, a continuous top plate, a fuel supply member, and an oxidant gas supply member, is provided. The fuel cell system of the present invention does not require glass-based sealants to seal its planar components. In the present system, the continuous cell of the system is supported by the first permeable layer. The second permeable layer is supported by the continuous cell. The fuel supply member supplies fuel into the first permeable layer. The fuel supply member extends between an outer edge and a center region of the first permeable layer and allows distribution of the fuel in a radial fashion. Further, the fuel supply member is connected to an external fuel manifold adjacent the outer edge. The oxidant gas supply member supplies oxidant gas into the second permeable layer. The oxidant gas supply member extends between an outer edge and a center region of the second permeable layer and allows distribution of the oxidant gas in a radial fashion. The oxidant gas supply member is connected to an external oxidant gas manifold adjacent the outer edge.

    摘要翻译: 一种无缝扁平的燃料电池堆系统,包括连续底板,第一可渗透或互连层,连续电池,第二可渗透或互连层,连续顶板,燃料供应构件和氧化剂气体供应构件, 被提供。 本发明的燃料电池系统不需要玻璃基密封剂来密封其平面部件。 在本系统中,系统的连续单元由第一可渗透层支撑。 第二渗透层由连续电池支撑。 燃料供给构件将燃料供应到第一可渗透层中。 燃料供给构件在第一可渗透层的外边缘和中心区域之间延伸,并且允许以径向方式分配燃料。 此外,燃料供给构件与邻近外缘的外部燃料歧管连接。 氧化剂气体供给部件向第二可渗透层供给氧化剂气体。 氧化剂气体供应构件在第二可渗透层的外边缘和中心区域之间延伸,并且允许以径向方式分布氧化剂气体。 氧化剂气体供给构件与邻近外缘的外部氧化剂气体歧管连接。

    Alkali-Free Composite Sealant Materials for Solid Oxide Fuel Cells
    2.
    发明申请
    Alkali-Free Composite Sealant Materials for Solid Oxide Fuel Cells 有权
    固体氧化物燃料电池的无碱复合密封材料

    公开(公告)号:US20060063659A1

    公开(公告)日:2006-03-23

    申请号:US10711477

    申请日:2004-09-21

    摘要: A sealant composition for use in sealing solid oxide fuel cells is provided which comprises a glass component which comprises a mixture of alkali-free inorganic oxides, and an optional filler component dispersed in the glass component, said filler component being up to 40% by weight of the composition. The glass component can include, on a mole basis, 20 to 50% BaO, 1 to 10% Y2P3, 5 to 20% B2O3, 10 to 30% SiO2, 3 to 35% MgO, 2 to 20% CaO, 1 to 10% ZnO, and 0 to 5% ZrO2, and exemplary filler components include zirconia, alumina, barium titanate, strontium titanate, and combinations thereof.

    摘要翻译: 提供了用于密封固体氧化物燃料电池的密封剂组合物,其包含玻璃组分,其包含无碱无机氧化物的混合物和分散在玻璃组分中的任选的填料组分,所述填料组分最多为40重量% 的组成。 玻璃组分可以以摩尔计包含20至50%的BaO,1至10%的Y 2 2 3 3,5至20%的B 2, 10-30%SiO 2,3〜35%MgO,2〜20%CaO,1〜10%ZnO,0〜5% 并且示例性填料组分包括氧化锆,氧化铝,钛酸钡,钛酸锶及其组合。

    Stacking and manifolding of unitized solid oxide fuel cells
    3.
    发明授权
    Stacking and manifolding of unitized solid oxide fuel cells 有权
    单元化固体氧化物燃料电池的堆叠和歧管

    公开(公告)号:US06803136B2

    公开(公告)日:2004-10-12

    申请号:US09827843

    申请日:2001-04-05

    IPC分类号: H01M812

    摘要: A fuel cell stack comprises a plurality of planar fuel cells in a spiral configuration. The fuel cells angularly offset from one another such that immediately adjacent cells only partially overlap one another. The cells are preferably of the unitized type. A manifold assembly is operatively adjacent to the fuel cells. The manifold assembly includes an inlet manifold and an outlet manifold for each of the gases that are in communication with the fuel cells. The unitized solid oxide fuel cell comprises a first planar interconnect, a planar ceramic cell adjacent the first planar interconnect, a second planar interconnect adjacent the opposite side of the planar ceramic cell, and a plurality of gas tubes adjacent the planar ceramic cell. The gas tubes are arranged to a first configuration, a second configuration, a third configuration and a fourth configuration with a cylindrical gas tube shape and a T-shape gas tube designs. These configurations provide a choice of co-flow, cross flow or counter flow patterns inside the cell to improve the thermal management and cell efficiency and provide more flexibilities to connect a manifold assembly. They also provide an option to directly combust the spent fuel just outside the fuel cell to eliminate a separate burner for residual energy recovery. These configurations thus provide means for improved fuel cell power system efficiency and lowered capital and operational costs.

    摘要翻译: 燃料电池堆包括螺旋构型的多个平面燃料电池。 燃料电池彼此成角度地偏移,使得紧邻的电池仅部分地彼此重叠。 细胞优选为单位化型。 歧管组件可操作地邻近燃料电池。 歧管组件包括与燃料电池连通的每个气体的入口歧管和出口歧管。 单元化固体氧化物燃料电池包括第一平面互连,与第一平面互连相邻的平面陶瓷单元,邻近平面陶瓷单元的相对侧的第二平面互连以及与平面陶瓷单元相邻的多个气体管。 气体管被布置成具有圆柱形气体管形状和T形气体管的第一构造,第二构造,第三构造和第四构造。 这些配置提供了单元内的共流,交叉流或逆流模式的选择,以改善热管理和电池效率,并提供连接歧管组件的更多灵活性。 它们还提供了在燃料电池外部直接燃烧乏燃料的选项,以消除用于剩余能量回收的独立燃烧器。 因此,这些配置提供了改善燃料电池电力系统效率并降低了资本和运营成本的手段。

    Stacking and manifolding of angularly offset, unitized solid oxide fuel cells
    5.
    发明授权
    Stacking and manifolding of angularly offset, unitized solid oxide fuel cells 失效
    角度偏移,单位化固体氧化物燃料电池的堆叠和歧管

    公开(公告)号:US06500578B1

    公开(公告)日:2002-12-31

    申请号:US09546308

    申请日:2000-04-10

    IPC分类号: H01M802

    摘要: A fuel cell stack comprises a plurality of planar fuel cells in a spiral configuration. The fuel cells angularly offset from one another such that immediately adjacent cells only partially overlap one another. The cells are preferably of the unitized type. A manifold assembly is operatively adjacent to the fuel cells. The manifold assembly includes an inlet manifold and an outlet manifold for each of the gases that are in communication with the fuel cells.

    摘要翻译: 燃料电池堆包括螺旋构型的多个平面燃料电池。 燃料电池彼此成角度地偏移,使得紧邻的电池仅部分地彼此重叠。 细胞优选为单位化型。 歧管组件可操作地邻近燃料电池。 歧管组件包括与燃料电池连通的每个气体的入口歧管和出口歧管。

    Flow field design for high fuel utilization fuel cells
    6.
    发明申请
    Flow field design for high fuel utilization fuel cells 审中-公开
    高燃料燃料电池的流场设计

    公开(公告)号:US20060093891A1

    公开(公告)日:2006-05-04

    申请号:US10978474

    申请日:2004-11-02

    IPC分类号: H01M8/02

    摘要: A flow field forming one wall of a channel in a flow field plate of a solid oxide fuel cell, the flow field includes a flat substrate having a patterned array of differently-shaped flow barriers projecting from the substrate into the channel, the flow field channel decreases in cross-sectional area in a flow direction.

    摘要翻译: 一种在固体氧化物燃料电池的流场板中形成通道的一个壁的流场,该流场包括一个平坦的基底,该基底具有从该基底突入该通道的不同形状的流动屏障的图案化阵列,该流场通道 在流动方向上的横截面积减小。

    Hydrogen separation process using mixed oxide ion/electronic/hydrogen atom conducting membranes
    8.
    发明申请
    Hydrogen separation process using mixed oxide ion/electronic/hydrogen atom conducting membranes 有权
    氢分离工艺采用混合氧化物离子/电子/氢原子导电膜

    公开(公告)号:US20070025909A1

    公开(公告)日:2007-02-01

    申请号:US11529180

    申请日:2006-09-28

    IPC分类号: C01B6/24

    摘要: A method for separation of molecular hydrogen from a gaseous mixture containing the molecular hydrogen, which method employs a dense mixed oxide ion/electronic/hydrogen atom conducting membrane or separator having a feed side and a permeate side that enables two mechanisms for hydrogen separation—ambi-polar conduction and hydrogen atom conduction. In this method, at least a portion of the molecular hydrogen is converted on the feed side of the membrane to hydrogen atoms, which hydrogen atoms are conducted through the membrane to the permeate side thereof where they are converted back to molecular hydrogen. The permeate side of the membrane is contacted with steam, forming water and/or steam on the feed side of the membrane and additional molecular hydrogen on the permeate side of the separator.

    摘要翻译: 一种从含有分子氢的气体混合物中分离分子氢的方法,该方法采用致密的混合氧化物离子/电子/氢原子导电膜或具有进料侧和渗透侧的分离器,其具有两个用于氢分离的机理 极导电和氢原子传导。 在该方法中,分子氢的至少一部分在膜的进料侧转化为氢原子,氢原子通过膜传导到其渗透侧,在那里它们被转化回分子氢。 膜的渗透侧与蒸汽接触,在膜的进料侧上形成水和/或蒸汽,并在分离器的渗透侧上形成额外的分子氢。

    High performance cathodes for solid oxide fuel cells
    9.
    发明授权
    High performance cathodes for solid oxide fuel cells 有权
    用于固体氧化物燃料电池的高性能阴极

    公开(公告)号:US06632554B2

    公开(公告)日:2003-10-14

    申请号:US09832625

    申请日:2001-04-10

    IPC分类号: H01M400

    摘要: The present invention relates to a multi-layered and multifunctional cathode in solid oxide fuel cells having high conductivity, high catalytic activity, minimized coefficient of thermal expansion (CTE) mismatch, excellent compatibility to other portions of the fuel cell, and reduced temperature operation. The cathode comprises a conductive layer, a catalyst layer and a graded composition layer. The conductive layer has a first density, the catalyst layer has a second density that is less than the first density, and the graded composition layer is characterized by a graded electronic conductivity and a graded ionic conductivity.

    摘要翻译: 本发明涉及具有高导电性,高催化活性,最小热膨胀系数(CTE)不匹配,与燃料电池的其它部分的良好相容性以及降低温度操作的固体氧化物燃料电池中的多层和多功能阴极。 阴极包括导电层,催化剂层和渐变组合物层。 导电层具有第一密度,催化剂层具有小于第一密度的第二密度,并且梯度组成层的特征在于梯度电子导电性和梯度离子电导率。

    Hydrogen extraction from gases derived from solid hydrocarbon fuels using mixed oxide ion/electronic conducting membranes
    10.
    发明申请
    Hydrogen extraction from gases derived from solid hydrocarbon fuels using mixed oxide ion/electronic conducting membranes 审中-公开
    使用混合氧化物离子/电子导电膜从固体烃燃料得到的气体中提取氢气

    公开(公告)号:US20060275205A1

    公开(公告)日:2006-12-07

    申请号:US11145329

    申请日:2005-06-03

    IPC分类号: C01B3/02

    摘要: A method for extracting hydrogen from a hydrogen-containing gas mixture in which a first side of a mixed oxide ion/electronic conducting membrane is contacted with the hydrogen-containing gas mixture and the opposite side of the mixed oxide ion/electronic conducting membrane is contacted with steam, forming steam on the first side of the mixed oxide ion/electronic conducting membrane and hydrogen gas on the opposite side of the mixed oxide ion/electronic conducting membrane. The hydrogen-containing mixture in accordance with one embodiment of this invention is derived from the gasification of a solid hydrocarbon fuel, such as coal or biomass.

    摘要翻译: 从混合氧化物离子/电子导电膜的第一面与含氢气体混合物和混合氧化物离子/电子导电膜的相对侧接触的含氢气体混合物中提取氢气的方法被接触 蒸汽,在混合氧化物离子/电子导电膜的第一侧上形成蒸汽,在混合氧化物离子/电子导电膜的相对侧上形成氢气。 根据本发明一个实施方案的含氢混合物来自固体烃燃料如煤或生物质的气化。