Glass Seal Containing Zirconia Powder and Fiber for a Solid Oxide Fuel Cell Stack
    2.
    发明申请
    Glass Seal Containing Zirconia Powder and Fiber for a Solid Oxide Fuel Cell Stack 审中-公开
    包含氧化锆粉末和固体氧化物燃料电池堆的纤维的玻璃密封

    公开(公告)号:US20100081032A1

    公开(公告)日:2010-04-01

    申请号:US12630198

    申请日:2009-12-03

    IPC分类号: H01M8/10 C03C8/00

    摘要: A glass ceramic composition for sealing adjacent metal cassettes in an SOFC stack. The seal composition comprises an alumina-silicate glass ceramic matrix or a matrix of Zr2 and a ceramic fiber aggregate and non-fibrous zirconia dispersed in the matrix. Preferably, the fiber is selected from the group consisting of zirconium oxide fiber, alumina fiber, and combinations thereof. Preferably, the fiber is present at 1-60 weight percent with respect to the weight of glass ceramic, preferably about 30 weight percent. Preferably, the zirconia fiber is stabilized by up to about 10% yttria. Alumina fiber may substitute for a portion of the zirconia fiber. Preferably, the non-fibrous zirconia is present at about 5 weight percent and is also stabilized.

    摘要翻译: 一种用于密封SOFC堆叠中的相邻金属盒的玻璃陶瓷组合物。 密封组合物包含氧化铝 - 硅酸盐玻璃陶瓷基体或分散在基体中的Zr 2基体和陶瓷纤维聚集体和非纤维状氧化锆。 优选地,纤维选自氧化锆纤维,氧化铝纤维及其组合。 优选地,纤维相对于玻璃陶瓷的重量为1-60重量%,优选约30重量%。 优选地,氧化锆纤维通过高达约10%的氧化钇稳定。 氧化铝纤维可代替一部分氧化锆纤维。 优选地,非纤维状氧化锆以约5重量%存在并且也稳定。

    Solid-oxide fuel cell system having an upstream reformate combustor
    3.
    发明申请
    Solid-oxide fuel cell system having an upstream reformate combustor 有权
    具有上游重整燃烧器的固体氧化物燃料电池系统

    公开(公告)号:US20060024541A1

    公开(公告)日:2006-02-02

    申请号:US10909577

    申请日:2004-08-02

    IPC分类号: H01M8/04 H01M8/06 H01M8/12

    摘要: A solid-oxide fuel cell system wherein a reformate combustor is disposed in the reformate flow path between a hydrocarbon reformer and a fuel cell stack. At system start-up, reformate is partially burned within the combustor by admitting combustion air, and the partially-burned reformate is passed through the anode chambers of the stack to warm the anodes. In addition, reformate is passed through a cathode-air heat exchanger to warm combustion air entering the cathode chambers of the stack. The combustor may continue to be supplied with a low level of air during steady-state operation of the SOFC, thereby providing a moist environment within the anode chambers to prevent coking of the anodes and providing additional heat to the reformate. The combustor decouples the reformer from the stack thermodynamically, permitting the reformer and the stack each to run in its own optimal temperature range.

    摘要翻译: 一种固体氧化物燃料电池系统,其中重整燃烧器设置在烃重整器和燃料电池堆之间的重整产品流路中。 在系统启动时,通过加入燃烧空气在燃烧室内部分燃烧重整产物,部分燃烧的重整产物通过堆叠的阳极室,以加热阳极。 此外,重整产物通过阴极 - 空气热交换器以加热进入堆叠的阴极室的燃烧空气。 在SOFC的稳态操作期间,燃烧器可以继续供应低水平的空气,从而在阳极室内提供潮湿环境,以防止阳极焦化并向重整产品提供额外的热量。 燃烧器使热重分离器与热堆动力学解耦,允许重整器和堆叠各自运行在其最佳温度范围内。

    Ceramic coatings for insulating modular fuel cell cassettes in a solid-oxide fuel cell stack
    4.
    发明申请
    Ceramic coatings for insulating modular fuel cell cassettes in a solid-oxide fuel cell stack 有权
    用于在固体氧化物燃料电池堆中绝缘模块化燃料电池盒的陶瓷涂层

    公开(公告)号:US20070134537A1

    公开(公告)日:2007-06-14

    申请号:US11158369

    申请日:2005-06-22

    IPC分类号: H01M2/08 H01M8/12 F16J15/12

    摘要: In assembling an SOFC fuel cell stack from a plurality of cassettes, the mounting plate of one cassette is attached to, and insulated from, the separator plate of the next-adjacent cassette by a peripheral dielectric seal consisting of a ceramic coating and a metal braze. Materials suitable for the ceramic coating include yttrium stabilized zirconia (YSZ), zirconia toughened alumina, magnesium silicates such as the mineral forsterite, magnesium aluminates, magnesium aluminosilicates and lanthanum zirconate. The ceramic coating may be applied to the cassette's outer surface in known fashion as by physical vapor deposition, chemical vapor deposition, sputtering, and various methods of plasma spray. An underlayer of alumina may also be used to provide a redundant layer of electrical insulation.

    摘要翻译: 在从多个盒组装SOFC燃料电池堆时,一个盒的安装板通过由陶瓷涂层和金属钎焊组成的外围电介质密封件附接到下一相邻盒的隔板并与之隔绝 。 适用于陶瓷涂层的材料包括钇稳定氧化锆(YSZ),氧化锆增韧氧化铝,硅酸镁如矿物镁橄榄石,铝酸镁,硅铝酸镁和锆酸镧。 陶瓷涂层可以通过物理气相沉积,化学气相沉积,溅射和各种等离子体喷涂方法以已知的方式施加到盒的外表面。 也可以使用氧化铝的底层来提供冗余的电绝缘层。

    Method and apparatus for forming electrode interconnect contacts for a solid-oxide fuel cell stack
    5.
    发明申请
    Method and apparatus for forming electrode interconnect contacts for a solid-oxide fuel cell stack 有权
    用于形成固体氧化物燃料电池堆的电极互连触点的方法和装置

    公开(公告)号:US20060275649A1

    公开(公告)日:2006-12-07

    申请号:US11145647

    申请日:2005-06-06

    IPC分类号: H01M4/86 C04B35/64

    摘要: An electrical interconnect for a solid-oxide fuel cell stack assembly, including a novel sintering paste and an improved manufacturing process for an anode and cathode electrical contacts is disclosed. On the anode side, the paste contains a metallic oxide such as NiO, and an amount of sacrificial pore-forming particles, such as carbon particles or polymer spheres, which are vaporized during sintering of the paste, resulting in a very porous connection having good electrical conductivity and good adhesion. A preferred level of pore-former in the paste is about 40 volume percent. On the cathode side, the paste contains a noble metal such as for example, gold, platinum, palladium or rhodium, and an amount of the sacrificial pore-forming particles. The paste may be applied to the surfaces in a grid pattern or, because the resulting contact is porous after sintering, it may be applied as a continuous layer.

    摘要翻译: 公开了一种用于固体氧化物燃料电池堆组件的电互连,其包括新颖的烧结膏和用于阳极和阴极电触点的改进的制造工艺。 在阳极侧,糊状物含有NiO等金属氧化物,以及在糊料烧结过程中蒸发的诸如碳颗粒或聚合物球的牺牲性成孔颗粒的量,导致非常多孔的连接具有良好的 导电性好,附着力好。 浆料中成孔剂的优选含量为约40体积%。 在阴极侧,糊状物含有贵金属,例如金,铂,钯或铑,以及一定量的牺牲性成孔颗粒。 糊状物可以以网格图案施加到表面,或者由于所得接触在烧结之后是多孔的,所以可以作为连续层施加。

    Etched interconnect for fuel cell elements
    6.
    发明申请
    Etched interconnect for fuel cell elements 失效
    用于燃料电池元件的蚀刻互连

    公开(公告)号:US20070248867A1

    公开(公告)日:2007-10-25

    申请号:US11237333

    申请日:2005-09-28

    IPC分类号: H01M8/02 H01B13/00

    摘要: An etched interconnect for fuel cell elements comprising solid oxide electrolyte, an anode, and a cathode, includes a conductive base sheet having first and second faces having anode and cathode gas flow passages, respectively. The anode gas flow passages and cathode gas flow passages each have a unique geometry selected to optimize fuel and oxidant gas flow. In a preferred embodiment, the gas flow passages are prepared using a photochemical etching process.

    摘要翻译: 包括固体氧化物电解质,阳极和阴极的燃料电池元件的蚀刻互连包括分别具有阳极和阴极气体流动通道的第一和第二表面的导电基片。 阳极气体流动通道和阴极气体流动通道各自具有选择用于优化燃料和氧化剂气体流量的独特几何形状。 在一个优选的实施方案中,气流通道是使用光化学蚀刻工艺制备的。

    Compliant current collector for fuel cell anode and cathode
    7.
    发明授权
    Compliant current collector for fuel cell anode and cathode 有权
    符合燃料电池阳极和阴极的集电器

    公开(公告)号:US08048587B2

    公开(公告)日:2011-11-01

    申请号:US10305881

    申请日:2002-11-27

    IPC分类号: H01M4/86 H01M8/02

    摘要: An electrically-conductive mesh spacer incorporated into the hydrogen and air gas flow spaces between each anode and cathode and its adjacent interconnect in a fuel cell stack. The mesh is formed of metal strands and is formed into a predetermined three-dimensional pattern to make contact at a plurality of points on the surfaces of the electrode and the interconnect element. The formed mesh spacer is secured as by brazing to the interconnect element at a plurality of locations to form an interconnect, which preserves the pattern during assembly of a fuel cell stack. The height of the formed pattern is greater than the height of a gas flow space after fuel cell assembly, such that the mesh spacer is slightly compressed during assembly of a fuel cell stack. Because the metal mesh is both compliant and resilient, the compressed spacer is continuously urged into mechanical and electrical contact with its electrode over all temperatures and pressures to which the fuel cell assembly may be subjected during use.

    摘要翻译: 导电网格隔离物,其结合在燃料电池堆中的每个阳极和阴极之间的氢气和空气气体流动空间及其相邻的互连中。 网格由金属线形成,并且形成为预定的三维图案以在电极和互连元件的表面上的多个点处接触。 形成的网格间隔件通过在多个位置处通过钎焊固定到互连元件上,以形成互连,其在燃料电池堆的组装期间保持图案。 形成的图案的高度大于燃料电池组件之后的气体流动空间的高度,使得在燃料电池堆的组装期间网格间隔件被轻微地压缩。 因为金属网既顺从又具有弹性,所以在使用期间燃料电池组件可能经受的所有温度和压力下,压缩间隔物被连续推动与其电极机械和电接触。

    Hybrid interconnect for a solid-oxide fuel cell stack
    9.
    发明授权
    Hybrid interconnect for a solid-oxide fuel cell stack 失效
    用于固体氧化物燃料电池堆的混合互连

    公开(公告)号:US07601450B2

    公开(公告)日:2009-10-13

    申请号:US11087904

    申请日:2005-03-23

    IPC分类号: H01M2/02

    摘要: An electrical interconnect for a fuel cell assembly comprising a peripheral frame formed of one or more materials having a coefficient of thermal expansion similar to that of adjacent elements to which the interconnect must be bonded and a central portion formed of a corrosion-resistant material for conducting electric current between adjacent fuel cells. Preferably, the central portion is attached to the peripheral frame via a brazed corrugated lap joint for relieving thermal expansion differences between the frame and the central portion. Preferably, the joint includes an interlayer of a ductile material, for example, a nickel, copper, silver or gold layer, which helps to relieve thermal stress between the frame and the central portion.

    摘要翻译: 一种用于燃料电池组件的电互连件,包括由一种或多种材料形成的外围框架,所述外围框架的热膨胀系数类似于要连接互连件的相邻元件的热膨胀系数;以及由用于导电的耐腐蚀材料形成的中心部分 相邻燃料电池之间的电流。 优选地,中心部分通过钎焊的波纹搭接接头附接到周边框架,用于减轻框架和中心部分之间的热膨胀差异。 优选地,接头包括延​​性材料的中间层,例如镍,铜,银或金层,其有助于缓解框架和中心部分之间的热应力。