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公开(公告)号:US4206270A
公开(公告)日:1980-06-03
申请号:US969596
申请日:1978-12-14
CPC分类号: H01M4/8621 , H01M4/9016 , H01M2004/8689 , H01M2008/147 , H01M2300/0051 , Y02E60/526
摘要: Porous cathodes for molten carbonate type fuel cells are made from perovskites. The perovskites tested to date all appear to be good cathode catalysts for the reduction of oxygen in molten carbonate electrolyte and are also stable in the electrolyte.
摘要翻译: 用于熔融碳酸盐型燃料电池的多孔阴极由钙钛矿制成。 迄今为止测试的钙钛矿都显示为用于还原熔融碳酸盐电解质中的氧的良好的阴极催化剂,并且在电解质中也是稳定的。
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公开(公告)号:US4810594A
公开(公告)日:1989-03-07
申请号:US177810
申请日:1988-04-07
CPC分类号: H01M4/8807 , H01M4/8882 , H01M4/8896 , H01M4/96 , H01M4/8828
摘要: A method for making a fuel cell electrode is disclosed. A layer of hydrophobic polymer and an electro-catalyst is deposited on the surface of a porous electrode substrate and press-sintered by heating the catalyst layer to a temperature between the melting point and decomposition temperature of the polymer and simultaneously compressing the layer at a pressure between 20 pounds per square inch and 100 pounds per square inch. The heating and compressing are continued for a time period of between 10 minutes and 20 minutes. A fuel cell electrode made by the above method and a method for generating electricity using such an electrode are also disclosed. A press-sintered fuel cell electrode provides improved peak performance as well as improved tolerance to electrolyte solidification.
摘要翻译: 公开了制造燃料电池电极的方法。 将疏水性聚合物层和电催化剂层沉积在多孔电极基材的表面上,并通过将催化剂层加热到聚合物的熔点和分解温度之间的温度进行压制,同时在压力下压制该层 介于20磅/平方英寸和100磅/平方英寸之间。 加热和压缩持续10分钟至20分钟的时间。 还公开了通过上述方法制造的燃料电池电极和使用这种电极发电的方法。 压力烧结燃料电池电极提供改善的峰值性能以及改进的对电解质凝固的耐受性。
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3.
公开(公告)号:US06913845B2
公开(公告)日:2005-07-05
申请号:US10282311
申请日:2002-10-28
申请人: Timothy A. Bekkedahl , Lawrence J. Bregoli , Richard D. Breault , Emily A. Dykeman , Jeremy P. Meyers , Timothy W. Patterson , Tommy Skiba , Chris Vargas , Deliang Yang , Jung S. Yi
发明人: Timothy A. Bekkedahl , Lawrence J. Bregoli , Richard D. Breault , Emily A. Dykeman , Jeremy P. Meyers , Timothy W. Patterson , Tommy Skiba , Chris Vargas , Deliang Yang , Jung S. Yi
CPC分类号: H01M4/9083 , H01M4/926 , H01M8/0234 , H01M8/0267 , H01M8/0271 , H01M8/04223 , H01M8/04225 , H01M8/04228 , H01M8/04238 , H01M8/1016 , H01M8/241 , H01M8/2465 , H01M8/2483 , H01M2008/1095 , H01M2300/0091
摘要: Each cell of a fuel cell stack is provided, between the anode 37 and cathodes 38, with either (a) a permanent shunt (20) which may be a discrete resistor (42-44), a diode (95), a strip of compliant carbon cloth (65), or a small amount of conductive carbon black (22) in the ionomer polymer mixture of which the proton exchange membrane (39) is formed, or (b) a removeable shunt such as a conductor (69) which may be rotated into and out of contact with the fuel cell anodes and cathodes, or a conductor (85) which may be urged into contact by means of a shape memory alloy actuator spring (90, 91), which may be heated.
摘要翻译: 在阳极37和阴极38之间提供燃料电池堆的每个电池,具有(a)永久性分流器(20),其可以是分立电阻器(42-44),二极管(95),一条 或其中形成质子交换膜(39)的离聚物聚合物混合物中的少量导电炭黑(22),或(b)诸如导体(69)的可移除分流器 可以与燃料电池阳极和阴极或者可以通过可被加热的形状记忆合金致动器弹簧(90,91)被推动接触的导体(85)旋转进入和脱离接触。
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公开(公告)号:US3979225A
公开(公告)日:1976-09-07
申请号:US532568
申请日:1974-12-13
CPC分类号: H01M8/18 , Y02E60/528
摘要: A fuel cell is disclosed in which the cathode is a gaseous diffusion fuel cell electrode operating with an acid electrolyte and nitrogen dioxide (NO.sub.2) alone or with oxygen. The cathode half cell reaction produces nitric oxide (NO) and water and the NO.sub.2 is externally regenerated by reaction of NO with oxygen to produce the nitrogen dioxide for reuse in the cell. When both NO.sub.2 and oxygen are used, oxidation of the NO formed back to the NO.sub.2 occurs within the cathode itself so it is possible to get more than 100% utilization of the NO.sub.2 in the fuel cell.
摘要翻译: 公开了一种燃料电池,其中阴极是单独使用酸性电解液和二氧化氮(NO 2)或氧气的气体扩散燃料电池电极。 阴极半电池反应产生一氧化氮(NO)和水,NO2通过NO与氧的反应而再生,产生二氧化氮以在电池中重新使用。 当使用NO 2和氧气时,在阴极本身内发生形成回NO的NO的氧化,因此有可能在燃料电池中获得超过100%的NO 2利用率。
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公开(公告)号:US20110039178A1
公开(公告)日:2011-02-17
申请号:US12925217
申请日:2010-10-14
申请人: Timothy A. Bekkedahl , Lawrence J. Bregoli , Ned E. Cipollini , Timothy W. Patterson , Marianne Pemberton , Jonathan Puhalski , Carl A. Reiser , Richard D. Sawyer , Margaret M. Steinbugler , Jung S. Yi
发明人: Timothy A. Bekkedahl , Lawrence J. Bregoli , Ned E. Cipollini , Timothy W. Patterson , Marianne Pemberton , Jonathan Puhalski , Carl A. Reiser , Richard D. Sawyer , Margaret M. Steinbugler , Jung S. Yi
IPC分类号: H01M8/04
CPC分类号: H01M8/04029 , H01M8/0243 , H01M8/0245 , H01M8/0258 , H01M8/0267 , H01M8/0271 , H01M8/04089 , H01M8/04097 , H01M8/04119 , H01M8/04156 , H01M8/04291 , H01M8/1007 , H01M2008/1095 , H01M2250/10 , Y02B90/14
摘要: A fuel cell power plant (10) includes a fuel cell (12) having a membrane electrode assembly (MEA) (16), disposed between an anode support plate (14) and a cathode support plate (18), the anode and/or cathode support plates include a hydrophilic substrate layer (80, 82) having a predetermined pore size. The pressure of the reactant gas streams (22, 24) is greater than the pressure of the coolant stream (26), such that a greater percentage of the pores within the hydrophilic substrate layer contain reactant gas rather than water. Any water that forms on the cathode side of the MEA will migrate through the cathode support plate and away from the MEA. Controlling the pressure also ensures that the coolant water will continually migrate from the coolant stream toward the anode side of the MEA, thereby preventing the membrane from becoming dry. Proper pore size and a pressure differential between coolant and reactants improves the electrical efficiency of the fuel cell.
摘要翻译: 燃料电池发电厂(10)包括具有设置在阳极支撑板(14)和阴极支撑板(18)之间的膜电极组件(MEA)(16))的燃料电池(12),阳极和/或 阴极支撑板包括具有预定孔径的亲水基底层(80,82)。 反应物气体流(22,24)的压力大于冷却剂流(26)的压力,使得亲水基底层内的较大百分比的孔含有反应物气体而不是水。 在MEA的阴极侧形成的任何水将通过阴极支撑板迁移并远离MEA。 控制压力还可确保冷却水从冷却剂流向MEA的阳极侧连续迁移,从而防止膜变干。 冷却剂和反应物之间适当的孔径和压力差提高了燃料电池的电效率。
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公开(公告)号:US4548876A
公开(公告)日:1985-10-22
申请号:US661851
申请日:1984-10-17
申请人: Lawrence J. Bregoli
发明人: Lawrence J. Bregoli
CPC分类号: H01M8/0254 , H01M4/8626 , H01M4/9016 , H01M4/9091 , H01M8/0221 , H01M8/0232 , H01M8/0236 , H01M8/0245 , H01M8/142 , H01M2008/147 , H01M2300/0051 , Y02E60/526
摘要: An integrated current collecting electrode for a molten carbonate fuel cell includes a corrugated metal conductive strip positioned in contact with a catalyst layer. The corrugations of the metal strip form a plurality of gas channels immediately adjacent the surface of the catalyst through which a reactant gas flows. Each channel is filled with a particulate material to maintain separation between the metal strip and the catalyst in ensuring gas channel integrity. The catalyst may be in the form of a compacted, particulate material provided the particle size of the material within the gas channels is larger than that of the catalyst particles to prevent catalyst migration to the metal conductor and provide reactant gas access to the catalyst layer. The gas channels formed by the corrugations of the metal strip are arranged in an offset pattern along the direction of gas flow for improved reactant gas distribution to the catalyst layer. The particulate material positioned within the gas flow channels may be a ceramic conductor such as a perovskite or a spinel for enhanced current collection.
摘要翻译: 用于熔融碳酸盐燃料电池的集成集电电极包括与催化剂层接触定位的波纹状金属导电带。 金属带的波纹形成紧邻反应物气体流过的催化剂表面的多个气体通道。 每个通道填充有颗粒材料,以确保金属带和催化剂之间的分离,以确保气体通道的完整性。 催化剂可以是压实的颗粒材料的形式,只要气体通道内的材料的粒径大于催化剂颗粒的粒度,以防止催化剂迁移到金属导体并提供反应气体进入催化剂层。 由金属带的波纹形成的气体通道沿着气流的方向以偏移图案布置,以改善对催化剂层的反应气体分布。 定位在气体流动通道内的颗粒材料可以是陶瓷导体,例如钙钛矿或尖晶石,用于增强电流收集。
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公开(公告)号:US07258945B2
公开(公告)日:2007-08-21
申请号:US10722946
申请日:2003-11-26
申请人: Timothy A. Bekkedahl , Lawrence J. Bregoli , Ned E. Cipollini , Timothy W. Patterson , Marianne Pemberton , Jonathan Puhalski , Carl A. Reiser , Richard D. Sawyer , Margaret M. Steinbugler , Jung S. Yi
发明人: Timothy A. Bekkedahl , Lawrence J. Bregoli , Ned E. Cipollini , Timothy W. Patterson , Marianne Pemberton , Jonathan Puhalski , Carl A. Reiser , Richard D. Sawyer , Margaret M. Steinbugler , Jung S. Yi
IPC分类号: H01M8/04
CPC分类号: H01M8/04029 , H01M8/0243 , H01M8/0245 , H01M8/0258 , H01M8/0267 , H01M8/0271 , H01M8/04089 , H01M8/04097 , H01M8/04119 , H01M8/04156 , H01M8/04291 , H01M8/1007 , H01M2008/1095 , H01M2250/10 , Y02B90/14
摘要: A fuel cell power plant includes a fuel cell having a membrane electrode assembly (MEA), disposed between an anode support plate and a cathode support plate, the anode and/or cathode support plates include a hydrophilic substrate layer having a predetermined pore size. The pressure of the reactant gas streams is greater than the pressure of the coolant stream, such that a greater percentage of the pores within the hydrophilic substrate layer contain reactant gas rather than water. Any water that forms on the cathode side of the MEA will migrate through the cathode support plate and away from the MEA. Controlling the pressure also ensures that the coolant water will continually migrate from the coolant stream toward the anode side of the MEA, thereby preventing the membrane from becoming dry. Proper pore size and a pressure differential between coolant and reactants improves the electrical efficiency of the fuel cell.
摘要翻译: 燃料电池发电厂包括具有设置在阳极支撑板和阴极支撑板之间的膜电极组件(MEA)的燃料电池,阳极和/或阴极支撑板包括具有预定孔径的亲水基底层。 反应物气体流的压力大于冷却剂流的压力,使得亲水基底层内的较大百分比的孔含有反应物气体而不是水。 在MEA的阴极侧形成的任何水将通过阴极支撑板迁移并远离MEA。 控制压力还可确保冷却水从冷却剂流向MEA的阳极侧连续迁移,从而防止膜变干。 冷却剂和反应物之间适当的孔径和压力差提高了燃料电池的电效率。
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公开(公告)号:US5478663A
公开(公告)日:1995-12-26
申请号:US216198
申请日:1994-03-22
CPC分类号: H01M8/244 , H01M8/0271 , H01M2008/147 , H01M2300/0051 , Y02E60/526
摘要: The reactant manifolds and corners of a molten carbonate fuel cell stack are sealed with particulate lithium aluminate members which are sufficiently porous so as to resist significant electrolyte migration therethrough. The seal members which are disposed in vertical planes of the stack are preferentially formed from lithium aluminate grains which are bonded together by a silica-free glass binder. The seal members which are disposed in horizontal planes in the stack are preferably formed from lithium aluminate grains which are bonded together by surface hydrolysis. Alumina-clad stainless steel labyrinth seal members are associated with each of the horizontal seal members to inhibit electrolyte migration from the cell electrolyte matrices to the vertical seal members.
摘要翻译: 熔融碳酸盐燃料电池堆的反应物歧管和拐角用足够多孔的铝酸锂构件密封,以便抵抗由此产生的显着的电解质迁移。 设置在堆叠的垂直平面中的密封构件优选由铝硅酸盐颗粒形成,所述铝酸锂颗粒通过无二氧化硅的玻璃粘结剂粘合在一起。 叠置在水平面上的密封构件优选由铝酸锂颗粒形成,所述铝酸锂颗粒通过表面水解结合在一起。 氧化铝包覆的不锈钢迷宫式密封件与每个水平密封件相关联,以抑制电解质从电池电解质基质迁移到垂直密封件。
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公开(公告)号:US4322482A
公开(公告)日:1982-03-30
申请号:US158019
申请日:1980-06-09
CPC分类号: H01M8/0295 , H01M8/145 , Y02E60/526
摘要: Thru-cracks in the electrolyte retaining matrix of a molten carbonate fuel cell caused by thermal cycling of the cell between operating and room temperature are prevented by an improved matrix comprising a major proportion of submicron support particles and a minor proportion, perhaps only a few percent, of much larger crack attenuator particles. In one embodiment wherein the electrolyte is to be a binary lithium-potassium carbonates composition, the matrix comprises 90 volume percent submicron lithium aluminate support particles and 10 volume percent alumina crack attenuator particles with an average size of 100 microns.
摘要翻译: 通过在操作和室温之间的电池的热循环引起的熔融碳酸盐燃料电池的电解质保留基质中的裂纹通过包含主要比例的亚微米载体颗粒和较小比例的改进的基体来防止,可能只有少数百分比 ,更大的裂纹衰减剂颗粒。 在电解质为二元碳酸锂 - 碳酸钾组合物的一个实施方案中,基质包含90体积百分比的亚微米铝酸锂载体颗粒和10体积%的平均粒径为100微米的氧化铝裂解衰减剂颗粒。
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