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    Low-temperature bonding of refractory ceramic layers
    1.
    发明授权
    Low-temperature bonding of refractory ceramic layers 有权
    难熔陶瓷层的低温结合

    公开(公告)号：US09276267B2

    公开(公告)日：2016-03-01

    申请号：US12284499

    申请日：2008-09-23

    申请人： Kailash C. Jain ,  Rick D. Kerr ,  Bryan Gillispie ,  Mohammad Parsian ,  Joseph M. Keller ,  David A. Thompson

    发明人： Kailash C. Jain ,  Rick D. Kerr ,  Bryan Gillispie ,  Mohammad Parsian ,  Joseph M. Keller ,  David A. Thompson

    IPC分类号： H01M4/80 ,  H01M4/86 ,  H01M4/88 ,  H01M4/90 ,  H01M8/12

    CPC分类号： H01M4/8657 ,  H01M4/8889 ,  H01M4/9016 ,  H01M4/9033 ,  H01M8/1253 ,  H01M2004/8689 ,  H01M2008/1293 ,  Y02E60/521 ,  Y02E60/525 ,  Y02P70/56

    摘要： A cathode of a solid-oxide fuel cell includes a first ionic conducting layer, a second layer deposited over the first layer and formed from a mixed ionic and electronic conductor layer including an oxygen ion conducting phase, and a third layer deposited over the second layer and formed from a mixed ionic and electronic conductor layer. A sintering aid and pore formers are added to the second layer and the third layer to establish ionic, electronic, and gas diffusion paths that are contiguous. By adjusting the microstructure of the second and the third layer, a high performance low resistance cathode is formed that bonds well to the electrolyte, is highly electro-catalytic, and has a relatively low overall resistance. By using inexpensive and readily available substances as sintering aid and as pore formers, a low-cost cathode is provided.

    摘要翻译： 固体氧化物燃料电池的阴极包括第一离子导电层，沉积在第一层上并由包括氧离子传导相的混合离子和电子导体层形成的第二层，以及沉积在第二层上的第三层 并由混合的离子和电子导体层形成。 向第二层和第三层加入烧结助剂和成孔剂以建立邻接的离子，电子和气体扩散路径。 通过调整第二层和第三层的微结构，形成了与电解质结合良好的高性能低电阻阴极，高电催化，总体电阻较低。 通过使用便宜且容易获得的物质作为烧结助剂和成孔剂，提供了低成本的阴极。

    Compound for a solid oxide fuel cell stack gasket
    3.
    发明授权
    Compound for a solid oxide fuel cell stack gasket 有权
    用于固体氧化物燃料电池堆叠垫片的化合物

    公开(公告)号：US07785725B2

    公开(公告)日：2010-08-31

    申请号：US11003897

    申请日：2004-12-03

    申请人： Joseph M. Keller ,  Walter Symons ,  William J. LaBarge

    发明人： Joseph M. Keller ,  Walter Symons ,  William J. LaBarge

    IPC分类号： H01M2/08 ,  H01M8/10

    CPC分类号： H01M8/0282 ,  H01M2008/1293

    摘要： In a solid-oxide fuel cell assembly comprising a plurality of components having electrically-conductive mating surfaces therebetween, the surfaces are sealed by an electrically insulating gasket that include a mineral composition comprising about 66 mol % MgO and about 33 mol % SiO2, the mineral composition being known mineralogically as forsterite. A brazing alloy may be applied to enhance bonding of the gasket into place. The gasket composition may include additions of Al2O3 to enhance electrical resistivity while having little to no impact of matching expansion coefficients of the gasket and metal mating surfaces. Also, additions such as titania or zirconia to inhibit glassy phase grain boundaries and the formation of impurities and pores in the ceramic grain boundaries may be used. A recommended particle size distribution of precursor powders is disclosed that leads to an optimum microstructure of the sintered gasket.

    摘要翻译： 在包括多个在其间具有导电配合表面的部件的固体氧化物燃料电池组件中，表面由电绝缘垫片密封，该电绝缘衬垫包括含有约66mol％MgO和约33mol％SiO 2的矿物组合物， 组合物在矿物学上被称为镁橄榄石。 可以施加钎焊合金以增强垫圈的粘合到位。 衬垫组合物可以包括添加Al 2 O 3以增强电阻率，同时几乎不影响垫片和金属配合表面的膨胀系数的匹配。 此外，可以使用诸如二氧化钛或氧化锆的添加物来抑制玻璃相晶界和陶瓷晶界中杂质和孔的形成。 公开了推荐的前体粉末的粒度分布，其导致烧结垫片的最佳微观结构。

    Low-temperature bonding of refractory ceramic layers
    4.
    发明申请
    Low-temperature bonding of refractory ceramic layers 有权
    难熔陶瓷层的低温结合

    公开(公告)号：US20100075194A1

    公开(公告)日：2010-03-25

    申请号：US12284499

    申请日：2008-09-23

    申请人： Kailash C. Jain ,  Rick D. Kerr ,  Bryan Gillispie ,  Mohammad Parsian ,  Joseph M. Keller ,  David A. Thompson

    发明人： Kailash C. Jain ,  Rick D. Kerr ,  Bryan Gillispie ,  Mohammad Parsian ,  Joseph M. Keller ,  David A. Thompson

    IPC分类号： H01M8/10 ,  B32B38/00

    CPC分类号： H01M4/8657 ,  H01M4/8889 ,  H01M4/9016 ,  H01M4/9033 ,  H01M8/1253 ,  H01M2004/8689 ,  H01M2008/1293 ,  Y02E60/521 ,  Y02E60/525 ,  Y02P70/56

    摘要： A cathode of a solid-oxide fuel cell includes a first ionic conducting layer, a second layer deposited over the first layer and formed from a mixed ionic and electronic conductor layer including an oxygen ion conducting phase, and a third layer deposited over the second layer and formed from a mixed ionic and electronic conductor layer. A sintering aid and pore formers are added to the second layer and the third layer to establish ionic, electronic, and gas diffusion paths that are contiguous. By adjusting the microstructure of the second and the third layer, a high performance low resistance cathode is formed that bonds well to the electrolyte, is highly electro-catalytic, and has a relatively low overall resistance. By using inexpensive and readily available substances as sintering aid and as pore formers, a low-cost cathode is provided.

    摘要翻译： 固体氧化物燃料电池的阴极包括第一离子导电层，沉积在第一层上并由包括氧离子传导相的混合离子和电子导体层形成的第二层，以及沉积在第二层上的第三层 并由混合的离子和电子导体层形成。 向第二层和第三层加入烧结助剂和成孔剂以建立邻接的离子，电子和气体扩散路径。 通过调整第二层和第三层的微结构，形成了与电解质结合良好的高性能低电阻阴极，高电催化，总体电阻较低。 通过使用便宜且容易获得的物质作为烧结助剂和成孔剂，提供了低成本的阴极。

    Ceramic assembly with a stabilizer layer
    5.
    发明授权
    Ceramic assembly with a stabilizer layer 有权
    具有稳定层的陶瓷组件

    公开(公告)号：US07595085B2

    公开(公告)日：2009-09-29

    申请号：US10797301

    申请日：2004-03-09

    申请人： Robert J. Svoboda ,  Haskell Simpkins ,  Joseph M. Keller ,  Vincent L. Sprenkle ,  Kerry D. Meinhardt ,  Nathan L. Canfield

    发明人： Robert J. Svoboda ,  Haskell Simpkins ,  Joseph M. Keller ,  Vincent L. Sprenkle ,  Kerry D. Meinhardt ,  Nathan L. Canfield

    IPC分类号： B05D5/12

    CPC分类号： H01M4/8875 ,  H01M4/8621 ,  H01M4/8885 ,  H01M2008/147 ,  Y02E60/526

    摘要： In one embodiment, the method of producing a ceramic assembly includes: disposing an electrode precursor on an electrolyte precursor having an electrolyte sintering shrinkage, disposing a stabilizer precursor having a stabilizer sintering shrinkage on the electrode precursor on a side opposite the electrolyte precursor to form a precursor assembly, and sintering the precursor assembly to form the ceramic assembly comprising a stabilizer layer, electrode, and electrolyte. The difference between the electrolyte sintering shrinkage and the stabilizer sintering shrinkage is less than or equal to ±1% and a surface of the ceramic assembly has less than or equal to about 5.0 degrees camber, as measured from the horizontal plane.

    摘要翻译： 在一个实施方案中，制造陶瓷组件的方法包括：将电极前体设置在具有电解质烧结收缩率的电解质前体上，在与电解质前体相反的一侧在电极前体上设置稳定剂烧结收缩率的稳定剂前体，形成 前体组件，并烧结前体组件以形成包含稳定剂层，电极和电解质的陶瓷组件。 电解质烧结收缩率和稳定剂烧结收缩率之间的差异小于或等于±1％，陶瓷组件的表面从水平面测得的角度小于或等于约5.0度。

    Ceramic coatings for insulating modular fuel cell cassettes in a solid-oxide fuel cell stack
    7.
    发明授权
    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：US07422819B2

    公开(公告)日：2008-09-09

    申请号：US11158369

    申请日：2005-06-22

    申请人： Gary F. Reisdorf ,  Joseph M. Keller ,  Karl J. Haltiner, Jr. ,  Subhasish Mukerjee ,  Kenneth Scott Weil ,  John S. Hardy

    发明人： Gary F. Reisdorf ,  Joseph M. Keller ,  Karl J. Haltiner, Jr. ,  Subhasish Mukerjee ,  Kenneth Scott Weil ,  John S. Hardy

    IPC分类号： H01M2/08

    CPC分类号： H01M8/0282 ,  H01M8/0286 ,  H01M2008/1293

    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。

    PROX catalyst for oxidizing carbon monoxide
    8.
    发明授权
    PROX catalyst for oxidizing carbon monoxide 失效
    用于氧化一氧化碳的PROX催化剂

    公开(公告)号：US07253137B2

    公开(公告)日：2007-08-07

    申请号：US11487195

    申请日：2006-07-14

    申请人： William J. LaBarge ,  Robert J. Svoboda ,  Joseph M. Keller

    发明人： William J. LaBarge ,  Robert J. Svoboda ,  Joseph M. Keller

    IPC分类号： B01J23/44 ,  B01J23/56 ,  B01J23/58 ,  B01J21/04 ,  H01M4/00

    CPC分类号： B32B3/26 ,  B32B3/10 ,  B32B5/12 ,  B32B5/26 ,  B32B37/0084 ,  B32B2038/0028 ,  B32B2262/0253 ,  B32B2432/00 ,  Y10T428/24479 ,  Y10T428/24612 ,  Y10T442/671 ,  Y10T442/673 ,  Y10T442/68 ,  Y10T442/699

    摘要： A catalyst for preferentially reducing carbon monoxide in a hydrogen stream. The catalyst is formed from a chemical composition including a hexaaluminate, a metal hydroxide and a precious metal. The composition may be disposed on a support or may be extruded or cast into or onto a support. Incorporation of hexaaluminates allows inclusion of metal hydroxides that flux the active precious metal surface at higher temperatures than can aluminum oxide-based catalytic compositions, thereby enhancing resistance of the catalyst and monolithic support and increasing the durability and thermal range of the PROX catalyst. An additional advantage is that lesser amounts of precious metal oxides need be deposited onto the hexaaluminate, while retaining activity similar to aluminum oxide compositions.

    摘要翻译： 用于优先还原氢气流中的一氧化碳的催化剂。 催化剂由包含六铝酸盐，金属氢氧化物和贵金属的化学组合物形成。 组合物可以设置在支撑体上，或者可以挤压或浇注到载体上或载体上。 六铝酸盐的加入允许包含在比氧化铝基催化剂组合物更高的温度下助熔活性贵金属表面的金属氢氧化物，从而增强催化剂和整体式载体的耐受性，并增加PROX催化剂的耐久性和热范围。 另外的优点是少量的贵金属氧化物需要沉积到六铝酸盐上，同时保持与氧化铝组合物类似的活性。