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1.发明申请Modular fuel cell cassette spacers for forming a solid-oxide fuel cell stack 有权用于形成固体氧化物燃料电池堆的模块化燃料电池盒间隔件公开(公告)号：US20070020506A1
公开(公告)日：2007-01-25
申请号：US11527908
申请日：2006-09-27
申请人： Karl Haltiner , Curtis Lamb , James Vordonis
发明人： Karl Haltiner , Curtis Lamb , James Vordonis
CPC分类号： H01M8/2465 , H01M8/0271 , H01M8/2425 , H01M2008/1293 , Y10T428/215
摘要： In a modular fuel cell cassette for forming a fuel cell stack, anode openings in the mounting plate and separator plate are separated and connected by modular spacer rings such that the cassette is incompressible at operating temperatures and compressive loads within the stack. The spacer rings are formed in modules wherein all of the rings required for all of the anode supply chimneys or all of the anode exhaust chimneys of any given cassette are ganged together and include a perimeter rail to which the rings are connected which automatically orients and positions the rings within the cassette during assembly thereof. The present invention eliminates the prior art need for individually positioning and spot welding each prior art ring in place prior to assembly of a prior art cassette. Two different structural embodiments for a spacer ring module are disclosed.
摘要翻译： 在用于形成燃料电池堆的模块化燃料电池盒中，安装板和隔离板中的阳极开口通过模块化间隔环分离并连接，使得盒在堆叠内的操作温度和压缩载荷下是不可压缩的。 间隔环形成在模块中，其中所有阳极供应烟囱所需的所有环或任何给定盒的所有阳极排气烟囱都被组合在一起，并且包括连接环的周边导轨，其自动定位和位置 组合期间盒内的环。 本发明消除了在组装现有技术盒之前单独定位和点焊每个现有技术的环就位的现有技术的需要。 公开了用于间隔环模块的两种不同的结构实施例。
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公开(公告)号：US20070248871A1
公开(公告)日：2007-10-25
申请号：US11406873
申请日：2006-04-19
申请人： Karl Haltiner , James Vordonis
发明人： Karl Haltiner , James Vordonis
CPC分类号： H01M8/0228 , B32B15/015 , C23C4/04 , H01M8/0206 , H01M8/0247 , H01M2008/1293 , Y10T428/12493
摘要： A current carrier for a solid oxide fuel cell system comprising a current-carrying core formed of a high-conductivity metallic material such as copper, brass, bronze, silver, silver-copper alloys, molybdenum, tungsten, or the like, and a protective jacket surrounding the core material. Preferably, the jacket is metallurgically bonded to the core. The jacket is formed of a high temperature alloy such as stainless steel, nickel, or a nickel alloy. The jacket is structurally competent to maintain the form of the electrical carrier at elevated temperatures at which the core material may be structurally incompetent. The current carrier may be sized comparable to conventional copper cables. The carrier is attached to a fuel cell current collector by a clamp assembly having a large surface contact area. Preferably, a contact paste consisting of fine silver particles forms a diffusion bond between the clamp and the carrier jacket, resulting in a low-loss connection.
摘要翻译： 一种用于固体氧化物燃料电池系统的电流载体，包括由诸如铜，黄铜，青铜，银，银 - 铜合金，钼，钨等的高导电性金属材料形成的载流芯，以及保护性 夹克围绕核心材料。 优选地，护套与金属冶金结合。 护套由不锈钢，镍或镍合金等高温合金形成。 护套在结构上能够在升高的温度下保持电载体的形式，其中芯材料可能在结构上不称职。 当前载体的尺寸可以与常规的铜电缆相当。 载体通过具有大的表面接触面积的夹具组件附接到燃料电池集电器。 优选地，由细银粒子组成的接触膏在夹具和载体护套之间形成扩散接合，导致低损耗连接。
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3.发明申请公开(公告)号：US20070248868A1
公开(公告)日：2007-10-25
申请号：US11406958
申请日：2006-04-19
申请人： Karl Haltiner , James Vordonis , John O'Brien
发明人： Karl Haltiner , James Vordonis , John O'Brien
CPC分类号： H01M8/2432 , H01M8/0271 , H01M8/028 , H01M8/0286 , H01M8/04074 , H01M8/242 , H01M8/2425 , H01M8/2465 , H01M8/248 , H01M8/2483
摘要： An SOFC stack module including an integral individual stack manifold containing all of the gas pathways necessary for supply and exhaust of fuel gas and cathode air to and from the stack chimneys. The stack is mounted and hermetically joined directly to the manifold without an intermediate base plate. Flanges at the inlet and outlet ports couple to system distributary manifolds via high temperature sealing joints. The manifold preferably is fabricated of a ferritic stainless steel, and may be formed in a one-piece casting, a combination of multiple castings and stamped plates metallurgically joined (brazed or welded together), or stamped from sheet metal stock. Preferably, the manifold includes fin structures extending into adjacent fuel gas and cathode air chambers to enhance balancing of temperatures by heat exchange therebetween. Heat exchange may be further improved by configuring the manifold to have a plurality of interleaved anode and cathode gas supply chambers.
摘要翻译： 一个SOFC堆叠模块，包括一个集成的单独的堆叠歧管，其包含供给和排出燃料气体和向烟囱排出阴极空气所需的所有气体通路。 堆叠被安装和气密地直接连接到歧管，而没有中间基板。 入口和出口处的法兰通过高温密封接头连接到系统分配歧管。 歧管优选地由铁素体不锈钢制成，并且可以以单件铸件形成，多个铸件和冶金接合（钎焊或焊接在一起）上的冲压板的组合，或者由金属板材冲压成型。 优选地，歧管包括延伸到相邻燃料气体和阴极空气室中的翅片结构，以通过其间的热交换来增强温度的平衡。 可以通过将歧管配置成具有多个交错的阳极和阴极气体供应室来进一步改善热交换。
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公开(公告)号：US20060147782A1
公开(公告)日：2006-07-06
申请号：US11250678
申请日：2005-10-14
申请人： Gary Reisdorf , Karl Haltiner
发明人： Gary Reisdorf , Karl Haltiner
CPC分类号： B23K1/0008 , B23K1/008 , B23K2101/18 , B23K2103/05 , H01M8/0232 , H01M8/0247 , H01M8/0271 , H01M8/0273 , H01M8/0276 , H01M8/0282 , H01M8/0297 , H01M8/2425 , H01M8/247 , H01M2008/1293 , Y02P70/56
摘要： A textured surface is formed on at least one of a fuel cell mounting plate or fuel cell subassembly to define a joint spacing between these two components. In a preferred embodiment, the textured surface comprises a plurality of dimples coined or otherwise formed in the metal mounting plate. The joint spacing improves the manufacturing and assembly process of the fuel cell cassettes through precise application and control of the brazing process which improves the braze joint strength while reducing material cost.
摘要翻译： 在燃料电池安装板或燃料电池子组件中的至少一个上形成纹理表面以限定这两个部件之间的接合间隔。 在优选实施例中，纹理表面包括在金属安装板中形成或以其他方式形成的多个凹坑。 接头间距通过钎焊工艺的精确应用和控制改善了燃料电池盒的制造和组装过程，从而提高了钎焊接头强度，同时降低了材料成本。
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5.发明申请公开(公告)号：US20070054036A1
公开(公告)日：2007-03-08
申请号：US11593672
申请日：2006-11-07
申请人： Diane England , Karl Haltiner , Sean Kelly , Michael Faville
发明人： Diane England , Karl Haltiner , Sean Kelly , Michael Faville
CPC分类号： H01M4/9066 , H01M4/8605 , H01M4/9016 , H01M8/0232 , H01M8/0256 , H01M2250/20 , Y02T90/32
摘要： In a fuel cell assembly, nickel-based anodes are readily oxidized when exposed to oxygen as may happen through atmospheric invasion of the assembly during cool-down following shutdown of the assembly. Repeated anode oxidation and reduction can be destructive of the anodes, leading to cracking and failure. To prevent such oxygen migration, oxygen getter devices containing oxygen-gettering material such as metallic nickel are provided in the fuel passageways leading to and from the anodes. Oxidation of the oxygen-gettering material is readily reversed through reduction by fuel when the assembly is restarted.
摘要翻译： 在燃料电池组件中，当暴露于氧气时，镍基阳极容易氧化，这可能是由于在组件关闭后的冷却期间通过组件的大气侵入而发生的。 重复的阳极氧化和还原可能是阳极的破坏，导致开裂和破坏。 为了防止这种氧迁移，在通向和从阳极的燃料通道中提供含有吸氧材料如金属镍的吸氧剂装置。 当组装重新启动时，吸氧材料的氧化很容易通过燃料的还原反转。
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公开(公告)号：US20060057442A1
公开(公告)日：2006-03-16
申请号：US11266987
申请日：2005-11-04
申请人： John Noetzel , Karl Haltiner , Kaushik Rajashekara
发明人： John Noetzel , Karl Haltiner , Kaushik Rajashekara
CPC分类号： H01M8/04365 , B60L11/1881 , B60L11/1892 , B60L11/1894 , H01M8/04559 , H01M8/04589 , H01M8/04947 , Y02T90/34 , Y10S429/90
摘要： A method of operating a fuel cell includes the step of selectively connecting and disconnecting the fuel cell to at least one electrical load dependent at least in part upon at least one of a fuel cell voltage, a fuel cell current and a fuel cell temperature.
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7.发明申请公开(公告)号：US20060024541A1
公开(公告)日：2006-02-02
申请号：US10909577
申请日：2004-08-02
CPC分类号： H01M8/0618 , C01B3/386 , C01B2203/0261 , C01B2203/066 , C01B2203/1288 , C01B2203/1604 , H01M8/04022 , H01M8/04134 , H01M2008/1293
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。
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公开(公告)号：US20070160891A1
公开(公告)日：2007-07-12
申请号：US11714450
申请日：2007-03-06
申请人： Karl Haltiner , Gary Reisdorf
发明人： Karl Haltiner , Gary Reisdorf
CPC分类号： H01M8/028 , H01M8/0271 , H01M8/0282 , H01M8/2404 , H01M8/2425 , H01M8/2432 , H01M2008/1293 , H01M2250/20 , Y02E60/525 , Y02T90/32 , Y10T29/4911
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 gasket elements that include first and second silver braze alloy layers and a dielectric layer, formed preferably of yttrium-stabilized zirconia (YSZ), disposed between the alloy layers. The alloy is capable of bonding to many ceramics, including YSZ, and is readily brazed to the oxide layer formed on many metals at elevated temperatures. Because the braze alloy is electrically conductive, a dielectric layer must be included to break conductivity in bonding applications where electrical insulation is required. YSZ functions as a reliable insulator and will not crystallize or fracture as do prior art glass insulators. The assembly is useful as an auxiliary power unit in a vehicle.
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公开(公告)号：US20070089563A1
公开(公告)日：2007-04-26
申请号：US11638192
申请日：2006-12-13
申请人： Gary Reisdorf , Karl Haltiner
发明人： Gary Reisdorf , Karl Haltiner
IPC分类号： B22F1/00
CPC分类号： B23K35/0244 , B23K35/025 , B23K35/30 , C04B37/003 , C04B37/006 , C04B37/023 , C04B37/026 , C04B2237/125 , C04B2237/708 , H01M8/0282 , H01M2008/1293 , Y10T428/12049 , Y10T428/252 , Y10T428/31678
摘要： A minimum joint thickness can be assured by incorporating beads or particles having a diameter corresponding to the joint thickness desired and which are infusible at the brazing temperature. Preferably such particles are formed of high-melting metals, metal oxides, ceramics, or cermets and are mixed into the alloy paste prior to fusing. In a preferred embodiment, the particle-containing paste is mixed with a non-flux carrier to facilitate application to the elements to be brazed. Exemplary application methods may include painting, rolling, screening, or extrusion dispensing. Brazing alloys in accordance with the invention are useful in bonding ceramics to ceramics, ceramics to metals, and metals to metals.
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公开(公告)号：US20060045791A1
公开(公告)日：2006-03-02
申请号：US10929819
申请日：2004-08-30
申请人： Karl Haltiner , Gregory Alexander , Gary Reisdorf
发明人： Karl Haltiner , Gregory Alexander , Gary Reisdorf
IPC分类号： C22C5/06
CPC分类号： B23K35/3006 , B23K35/0222 , B23K35/0244 , B23K35/30 , B23K35/32 , B23K35/322 , C04B37/006 , C04B37/026 , C04B2237/125 , H01M8/0282 , H01M2008/1293
摘要： A brazing alloy comprising elemental silver alloyed with elemental silicon in a silver/silicon ratio between about 95/5 and 99/1, preferably about 97/3. Small amounts of silicon alloyed with silver depress the alloy liquidus curve significantly, the liquidus temperature of a silver and silicon eutectic alloy being about 837° C. Brazing alloys in accordance with the invention are useful in bonding ceramics to ceramics, ceramics to metals, and metals to metals. Copper, vanadium, or other oxygen-reactive surface bonding elements may also be included. Silver/silicon alloys are useful in applications such as assembly of components of solid oxide fuel cells. A variety of silver/silicon alloy brazes can be used within the same fuel cell so that subsequent brazing can be performed without reliquifying a previous braze. A brazing alloy comprising elemental silver and ruthenium in a silver/ruthenium ratio between 97/3 and 99/1 is also included.
摘要翻译： 一种钎焊合金，其包含与银/硅比例在约95/5和99/1之间，优选约97/3的元素硅合金化的元素银。 与银合金化的少量硅显着降低合金液相线，银和硅共晶合金的液相线温度约为837℃。根据本发明的钎焊合金可用于将陶瓷与陶瓷，金属结合，以及 金属到金属。 也可以包括铜，钒或其它氧反应性表面结合元件。 银/硅合金可用于固体氧化物燃料电池组件的组装。 在相同的燃料电池中可以使用各种银/硅合金钎焊，从而可以进行后续的钎焊，而不需要先前的钎焊。 包含银/钌比率在97/3和99/1之间的元素银和钌的钎焊合金也包括在内。
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