公开(公告)号：US5856035A

公开(公告)日：1999-01-05

申请号：US810975

申请日：1997-02-27

Applicant: Ashok C. Khandkar ,  Singaravelu Elangovan

Inventor： Ashok C. Khandkar ,  Singaravelu Elangovan

IPC: H01M8/02 ,  H01M8/12 ,  H01M8/24 ,  H01M8/04

CPC classification number: H01M8/0247 ,  H01M8/0232 ,  H01M8/0258 ,  H01M8/2465 ,  H01M2008/1293 ,  H01M2300/0074 ,  H01M8/249

Abstract: An apparatus for collecting electrical current from individual fuel cell stacks in a solid oxide fuel cell is provided, in which the current collectors are protected from oxidation through advantageous placement in non-oxidizing surroundings. Fuel cell module configurations employing and taking advantage of the current collecting apparatus are also provided.

Abstract translation: 提供了一种用于从固体氧化物燃料电池中的各个燃料电池堆收集电流的装置，其中通过有利的放置在非氧化环境中保护集电器免于氧化。 还提供了采用并利用集电装置的燃料电池模块配置。

公开(公告)号：US5712055A

公开(公告)日：1998-01-27

申请号：US808123

申请日：1997-02-28

Applicant: Ashok C. Khandkar ,  Singaravelu Elangovan

Inventor： Ashok C. Khandkar ,  Singaravelu Elangovan

IPC: H01M8/12 ,  H01M8/24 ,  H01M8/10

CPC classification number: H01M8/2425 ,  H01M8/1231 ,  H01M2008/1293 ,  H01M2300/0074 ,  H01M8/2495

Abstract: A multi-stage arrangement for the electrolyte material in a SOFC electrochemical power system. Multiple stages may be arranged in series, and each stage contains electrolyte elements which are constructed of a different material from the elements in previous and subsequent stages. A fuel gas admitted to the power system flows serially through each stage and is then exhausted from the power system. Upstream stages contain electrolyte elements made from an electrolyte material having low ion conductivity and high resistance. Subsequent stages contain electrolytes having progressively higher conductivity and progressively lower resistance. The fuel exhaust from an upstream stage is fed to the next downstream stage until the gas is exhausted from the final stage in the power system. Each stage operates at a progressively lower temperature than the previous stage. In a three-stage embodiment, a first stage has ZrO.sub.2, electrolyte material, a second stage has CeO.sub.2, and a third stage has Bi.sub.2 O.sub.3. The multi-stage fuel cell arrangement leads to a higher total power output for the same initial mass flow rate of fuel gases though the fuel cells.

Abstract translation: 在SOFC电化学电力系统中的电解质材料的多级布置。 多个阶段可以串联布置，并且每个阶段都包含由前一阶段和后续阶段中与元素不同的材料构成的电解质元素。 允许进入电力系统的燃气气体依次流过每一级，然后从电力系统中排出。 上游阶段包含由具有低离子传导性和高电阻的电解质材料制成的电解质元件。 后续阶段包含具有逐渐更高导电性和逐渐降低电阻的电解质。 来自上游级的燃料排出物被供给到下一个下游级，直到气体从动力系统的最后级排出。 每个阶段的运行温度都比前一阶段低。 在三段实施例中，第一阶段具有ZrO 2，电解质材料，第二阶段具有CeO 2，第三阶段具有Bi 2 O 3。 多级燃料电池装置导致通过燃料电池的相同的初始质量流率的燃料气体的总功率输出。

公开(公告)号：US5612149A

公开(公告)日：1997-03-18

申请号：US581989

申请日：1996-01-02

Applicant: Joseph J. Hartvigsen ,  Ashok C. Khandkar ,  Singaravelu Elangovan

Inventor： Joseph J. Hartvigsen ,  Ashok C. Khandkar ,  Singaravelu Elangovan

IPC: H01M8/02 ,  H01M8/06 ,  H01M8/12 ,  H01M8/24 ,  H01M8/04

CPC classification number: H01M8/04074 ,  H01M8/0625 ,  H01M8/247 ,  H01M2008/1293 ,  H01M2300/0074 ,  H01M8/249

Abstract: A fuel cell module (10) with a fuel cell column (18), having at least one fuel cell stack, mated with the planar wall of a heat exchanger (60), wherein the fuel cell column and heat exchanger are mounted to a support structure (30), and which define an air plenum between the fuel cell column and planar wall of the heat exchanger, thereby eliminating the ductwork and insulation requirements associated with heat exchange systems while increasing the efficiency of the heat exchanger.

Abstract translation: 一种具有燃料电池塔（18）的燃料电池模块（10），其具有与热交换器（60）的平面壁配合的至少一个燃料电池堆，其中所述燃料电池塔和热交换器被安装到支架 结构（30），并且其在燃料电池塔和热交换器的平面壁之间限定一个空气室，从而消除了与热交换系统相关联的管道系统和绝缘要求，同时提高了热交换器的效率。

公开(公告)号：US5298341A

公开(公告)日：1994-03-29

申请号：US932962

申请日：1992-08-20

Applicant: Ashok C. Khandkar ,  Singaravelu Elangovan ,  Joseph J. Hartvigsen

Inventor： Ashok C. Khandkar ,  Singaravelu Elangovan ,  Joseph J. Hartvigsen

IPC: B01D53/32 ,  H01M8/12 ,  H01M8/24 ,  B01D13/08

CPC classification number: B01D53/326 ,  H01M8/2415 ,  H01M8/247 ,  H01M2008/1293 ,  H01M2300/0074 ,  H01M8/249

Abstract: A modular arrangement for stacks of ion conducting electrolyte elements includes a plurality of solid state ion conducting electrolyte elements spaced apart and arranged into stacks and the stacks further arranged at regular intervals around a central plenum. A plurality of gas flow passageways are disposed in the spaces between the electrolyte elements to enable reactant gases to circulate between the elements. A pair of manifold plates are disposed on either side of the electrolyte elements and sandwich the elements therebetween.

Abstract translation: 用于离子传导电解质元件堆叠的模块化布置包括间隔开并布置成堆叠的多个固态离子导电电解质元件，并且堆叠还以围绕中央集气室的规则间隔进一步布置。 多个气体流动通道设置在电解质元件之间的空间中，以使反应气体能够在元件之间循环。 一对歧管板设置在电解质元件的两侧并将元件夹在其间。

公开(公告)号：US5269902A

公开(公告)日：1993-12-14

申请号：US932759

申请日：1992-08-20

Applicant: Ashok C. Khandkar ,  Singaravelu Elangovan

Inventor： Ashok C. Khandkar ,  Singaravelu Elangovan

IPC: B01D71/02 ,  C25B1/12 ,  C25B9/18 ,  G01N27/417 ,  H01M8/24 ,  G01N27/26

CPC classification number: H01M8/241 ,  C25B9/18 ,  G01N27/417 ,  H01M8/2415 ,  H01M8/247 ,  H01M2300/0082 ,  H01M8/2425 ,  H01M8/244 ,  H01M8/249 ,  Y02E60/366

Abstract: A module for an ion-conducting device includes a plurality of spaced-apart, solid state ion-conducting electrolyte elements arranged substantially radially around a central plenum. A plurality of longitudinal gas flow channels is sealed off from the central plenum by a plurality of seals, and extend longitudinally through the module in the spaces between every other adjacent pair of electrolyte elements. A plurality of transverse gas flow channels is in fluid communication with the central plenum, and extend generally radially outward from it through the spaces between every-other adjacent pair of electrolyte elements not constituting a longitudinal gas flow channel. Manifold plates having a plenum aperture and a plurality of gas apertures therein are disposed on either side of the radially arranged electrolyte elements, and sandwich the elements therebetween. A plurality of the modules may be juxtaposed in a modular assembly wherein the central plenums of adjacent modules are aligned and in register, and combine to form an extended central plenum, the transverse gas flow channels in each module extend generally radially from the extended central plenum, and the longitudinal gas flow channels of adjacent modules are aligned and in register and in fluid communication and form extended longitudinal gas flow channels.

Abstract translation: 用于离子传导装置的模块包括多个间隔开的固态离子导电电解质元件，其基本上径向布置在中央集气室周围。 多个纵向气体流动通道通过多个密封件从中央集气室被密封，并且在每隔一个相邻的一对电解质元件之间的空间中纵向延伸穿过模块。 多个横向气体流动通道与中央集气室流体连通，并且从其大致径向向外延伸穿过不构成纵向气体流动通道的每隔一对相邻电解质元件之间的空间。 在径向布置的电解质元件的两侧设置有具有增压孔和多个气孔的歧管板，并将元件夹在其间。 多个模块可以并联在模块化组件中，其中相邻模块的中央增压室对齐并且对准并组合以形成延伸的中央增压室，每个组件中的横向气体流动通道从扩展的中心集气室大致径向延伸 并且相邻模块的纵向气体流动通道对准并且对准并且流体连通并且形成延伸的纵向气体流动通道。