Solid-oxide fuel cell system having an upstream reformate combustor
    31.
    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。

    Fuel cell stack having foil interconnects and laminated spacers
    32.
    发明申请
    Fuel cell stack having foil interconnects and laminated spacers 审中-公开
    具有箔互连和层压间隔物的燃料电池堆

    公开(公告)号:US20050153190A1

    公开(公告)日:2005-07-14

    申请号:US10993856

    申请日:2004-11-19

    摘要: Interconnects and perimeter spacers for a fuel cell stack are provided as flexible elements which can conform to non-planarities in a stack's electrolyte elements and thereby avoid inducing torsional stresses in the electrolyte elements. The interconnects are foil elements about 0.005 inches thick, formed of a superalloy such as Hastelloy, Haynes 230, or a stainless steel. The perimeter spacers comprise a plurality of laminate thin spacer elements, each thin spacer element being a laminate of superalloy and a “soft” material such as copper, nickel, or mica. The spacer elements can slide past one another; thus the perimeter spacers can be physically thick, to form the gas flow spaces within the stack, while also being torsionally flexible.

    摘要翻译: 提供了用于燃料电池堆的互连和周边间隔物作为柔性元件,其可以符合堆叠电解质元件中的非平面性,从而避免在电解质元件中引起扭转应力。 这些互连件是约0.005英寸厚的箔元件,由诸如Hastelloy,Haynes 230或不锈钢的超级合金形成。 周边间隔件包括多个层压薄的间隔元件,每个薄间隔元件是超合金和诸如铜,镍或云母的“软”材料的层压体。 间隔元件可以彼此滑过; 因此周边间隔物可以物理上较厚,以在堆叠内形成气流空间,同时也具有挠性。

    Cascaded fuel cell stacks for fast start-up and anode coking control
    33.
    发明申请
    Cascaded fuel cell stacks for fast start-up and anode coking control 失效
    级联燃料电池堆用于快速启动和阳极焦化控制

    公开(公告)号:US20050037249A1

    公开(公告)日:2005-02-17

    申请号:US10640743

    申请日:2003-08-14

    摘要: A solid-oxide fuel cell system having a relatively large primary fuel cell sub-assembly for steady-state operation and a relatively small secondary fuel cell sub-assembly which is rapidly heatable to a threshold operating temperature to a) produce usable power in a short time period, b) cascade a hot exhaust into the primary fuel cell sub-assembly to assist in preheating thereof, and c) provide steam into the primary fuel cell sub-assembly to prevent coking of the anodes thereof. As the primary sub-assembly reaches its threshold temperature, it too begins to generate electricity and continues to self-heat and to be heated by the secondary sub-assembly. Preferably, the secondary sub-assembly continues to provide electricity in complement with the primary sub-assembly until the primary sub-assembly reaches full power, at which time the secondary sub-assembly may be shut down or switched to standby status for fuel efficiency, as desired.

    摘要翻译: 一种固态氧化物燃料电池系统,其具有用于稳态运行的相对较大的一次燃料电池子组件和可快速加热至阈值工作温度的相对较小的二次燃料电池子组件,以便能够在短时间内产生可用功率 时间段,b)将热排气串联到主燃料电池子组件中以辅助其预热,以及c)向主要燃料电池子组件提供蒸汽以防止其阳极焦化。 当初级子组件达到其阈值温度时,它也开始产生电力并继续自热并由次级组件加热。 优选地,辅助子组件继续提供与初级子组件互补的电力,直到初级子组件达到全部功率为止,此时次级组件可被关闭或切换到备用状态以获得燃料效率, 如预期的。

    Fuel cell stack having a featured interconnect element
    35.
    发明申请
    Fuel cell stack having a featured interconnect element 有权
    具有特征互连元件的燃料电池堆

    公开(公告)号:US20050194720A1

    公开(公告)日:2005-09-08

    申请号:US11095063

    申请日:2005-03-31

    摘要: An interconnect element for electrically connecting an anode and a cathode in adjacent fuel cells in a fuel cell stack, wherein said interconnect element has at least one featured surface including dimples, bosses, and/or pins arranged in a two-dimensional pattern. Preferably, both surfaces are featured, as by mechanical dimpling, embossing, or chemical etching, so that protrusions of the interconnect surface extend into either or both of the adjacent gas flow spaces to make electrical contact with the surfaces of the anode and cathode. This permits conduction of heat from the anode. The protrusions create turbulence in gas flowing through the flow spaces, which increases hydrogen consumption at the anode and hence electric output of the cell.

    摘要翻译: 一种互连元件,用于将燃料电池堆中的相邻燃料电池中的阳极和阴极电连接,其中所述互连元件具有包括以二维图案布置的凹坑,凸起和/或销的至少一个特征表面。 优选地,两个表面的特征在于机械凹坑,压花或化学蚀刻,使得互连表面的突起延伸到相邻的气体流动空间中的一个或两个中,以与阳极和阴极的表面电接触。 这允许来自阳极的热传导。 突起在流过空间的气体中产生湍流,这增加了阳极处的氢消耗,从而增加了电池的电输出。

    Binuclear non-heme iron catalysts
    36.
    发明授权
    Binuclear non-heme iron catalysts 失效
    双核非血红素铁催化剂

    公开(公告)号:US06395904B1

    公开(公告)日:2002-05-28

    申请号:US09486547

    申请日:2000-06-06

    IPC分类号: C07F1500

    摘要: The subject invention provides a binuclear metal complex having structure (I) wherein M1, and M2 are independently selected from the group consisting of Fe, Co, Mn and Ru; wherein m and n are independently +2 or +3; wherein R1, R2, R3, R4, R5 and R6 are independently a linear C1-C6 alkyl, C5-C6 cycloalkyl, phenyl, etc.; wherein (i) R1 and R2, (ii) R3 and R4, or (iii) R5 and R6 independently and optionally are linked covalently and together with the respective adjoining C atom comprise a spirocyclic ring; wherein i, j and k are integers such that 2≦i+j+k≦4; wherein p is 1 or 2, and q is 0, 1 or 2 such that m+n−4=p×q; wherein (i) R1 or R2 and R3 or R4, (ii) R3 or R4 and R4 or R5, or (iii) R1 or R2 and R5 or R6 independently and optionally are linked covalently and together with the respective adjoining C atoms comprise a fused ring; wherein Ar is 1,2-phenylene, 1,2- or 2,3-naphthylene, etc., wherein said Ar is optionally substitued by C1-C6 alkyl or alkoxy; wherein L is N-methylimidazole, N-ethylimidazole, etc.; and wherein X is fluorine, chlorine, bromine, etc. Also provided are methods of oxidation of alkanes, arenes, and sulfides using the binuclear metal complex as a catalyst and a method of preparing said complex.

    摘要翻译: 本发明提供具有结构(I)的双核金属络​​合物,其中M1和M2独立地选自Fe,Co,Mn和Ru; 其中m和n独立地是+2或+3; 其中R1,R2,R3,R4,R5和R6独立地为直链C1-C6烷基,C5-C6环烷基,苯基等; 其中(i)R 1和R 2,(ⅱ)R 3和R 4,或(ⅲ)R 5和R 6独立地且任选被共价连接并与相邻的C原子一起包含一个螺环; 其中i,j和k是整数,使得2 <= i + j + k <= 4; 其中p为1或2,q为0,1或2,使得m + n-4 = pxq; 其中(i)R 1或R 2和R 3或R 4,(ⅱ)R 3或R 4和R 4或R 5,或(ⅲ)R 1或R 2和R 5或R 6独立且任选地与相邻的C原子共价连接并连接 稠环; 其中Ar为1,2-亚苯基,1,2-或2,3-亚萘基等,其中所述Ar任选被C 1 -C 6烷基或烷氧基取代; 其中L是N-甲基咪唑,N-乙基咪唑等; 并且其中X是氟,氯,溴等。还提供了使用双核金属络​​合物作为催化剂的烷烃,芳烃和硫化物的氧化方法和制备所述络合物的方法。

    Solid oxide fuel cell having a glass composite seal
    38.
    发明授权
    Solid oxide fuel cell having a glass composite seal 有权
    具有玻璃复合密封件的固体氧化物燃料电池

    公开(公告)号:US08420278B2

    公开(公告)日:2013-04-16

    申请号:US12981881

    申请日:2010-12-30

    IPC分类号: H01M2/08 H01M2/14

    摘要: A solid oxide fuel cell stack having a plurality of cassettes and a glass composite seal disposed between the sealing surfaces of adjacent cassettes, thereby joining the cassettes and providing a hermetic seal therebetween. The glass composite seal includes an alkaline earth aluminosilicate (AEAS) glass disposed about a viscous glass such that the AEAS glass retains the viscous glass in a predetermined position between the first and second sealing surfaces. The AEAS glass provides geometric stability to the glass composite seal to maintain the proper distance between the adjacent cassettes while the viscous glass provides for a compliant and self-healing seal. The glass composite seal may include fibers, powders, and/or beads of zirconium oxide, aluminum oxide, yttria-stabilized zirconia (YSZ), or mixtures thereof, to enhance the desirable properties of the glass composite seal.

    摘要翻译: 一种具有多个盒的固体氧化物燃料电池堆和设置在相邻盒的密封表面之间的玻璃复合密封件,从而连接盒并在其间提供气密密封。 玻璃复合密封件包括一个围绕粘性玻璃设置的碱土金属硅铝酸盐(AEAS)玻璃,使得AEAS玻璃将粘性玻璃保持在第一和第二密封表面之间的预定位置。 AEAS玻璃为玻璃复合材料密封件提供几何稳定性,以保持相邻胶片盒之间的适当距离,而粘性玻璃则提供柔顺和自愈密封。 玻璃复合密封件可以包括氧化锆,氧化铝,氧化钇稳定的氧化锆(YSZ)或其混合物的纤维,粉末和/或珠粒,以增强玻璃复合材料密封件的期望性能。

    Ceramic coatings for insulating modular fuel cell cassettes in a solid-oxide fuel cell stack
    39.
    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
    40.
    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。