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公开(公告)号：US07029785B2
公开(公告)日：2006-04-18
申请号：US10328624
申请日：2002-12-23
IPC分类号： H01M4/94
CPC分类号： H01M4/8875 , H01M4/8605 , H01M4/8668 , H01M4/8673 , H01M4/881 , H01M4/886 , H01M2008/1095
摘要： Methods are provided for easily obtaining a high performance electrode without using an organic solvent for making an ink of an electrode catalyst or a surfactant for making an ink of a water repellent carbon material. The methods of manufacturing an electrode for a polymer electrolyte fuel cell comprise (a) a step of adhering a polymer electrolyte or a water repellent material to fine electrically conductive particles, and granulating the electrically conductive particles to obtain multinary granules, and (b) a step of depositing the multinary granules in layer form to obtain a catalyst layer or a water repellent layer of an electrode. Apparatus for manufacturing the electrodes, as well as polymer electrolyte fuel cells using the electrodes are also provided.
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公开(公告)号：US06991870B2
公开(公告)日：2006-01-31
申请号：US10296338
申请日：2002-03-05
申请人： Eiichi Yasumoto , Akihiko Yoshida , Makoto Uchida , Junji Morita , Yasushi Sugawara , Hisaaki Gyoten , Masao Yamamoto , Osamu Sakai , Junji Niikura
发明人： Eiichi Yasumoto , Akihiko Yoshida , Makoto Uchida , Junji Morita , Yasushi Sugawara , Hisaaki Gyoten , Masao Yamamoto , Osamu Sakai , Junji Niikura
CPC分类号： H01M4/8828 , H01M4/8605 , H01M4/8807 , H01M4/8882 , H01M4/926 , H01M8/1004 , H01M2300/0082
摘要： It has been difficult to keep the voltage of a polymer electrolyte fuel cell stable for a long period of time because uniform water content control over the plane of the membrane-electrode assembly is impossible. A gas diffusion electrode is produced by forming a conductive polymer layer composed of conductive particles and a polymer material on a porous material composed of carbon fiber, and forming a catalyst layer composed of platinum-carried carbon particles on the plane of the conductive polymer layer. The conductive polymer layer is composed of conductive particles different in particle size, and the content of the conductive particles having the smaller particle size is decreased from one end towards the other end of the gas diffusion electrode.
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公开(公告)号：US20050214599A1
公开(公告)日：2005-09-29
申请号：US11137514
申请日：2005-05-26
申请人： Osamu Sakai , Hisaaki Gyoten , Hiroki Kusakabe , Eiichi Yasumoto , Yasushi Sugawara , Teruhisa Kanbara , Akihiko Yoshida , Makoto Uchida , Junji Morita
发明人： Osamu Sakai , Hisaaki Gyoten , Hiroki Kusakabe , Eiichi Yasumoto , Yasushi Sugawara , Teruhisa Kanbara , Akihiko Yoshida , Makoto Uchida , Junji Morita
CPC分类号： H01M4/8657 , H01M4/8636 , H01M8/0234 , H01M8/0245 , H01M8/1004 , H01M8/1007 , H01M8/241 , H01M8/2415 , H01M8/2457 , H01M8/2484 , H01M2250/20 , H01M2250/402 , H01M2300/0082 , Y02B90/12 , Y02E60/521 , Y02P70/56 , Y02P90/40 , Y02T90/32 , Y10T29/49108
摘要： A polymer electrolyte fuel cell is provided comprising: a hydrogen ion conductive polymer electrolyte membrane; an anode and a cathode sandwiching the hydrogen ion conductive polymer electrolyte membrane; an anode side electroconductive separator having a gas channel for supplying a fuel gas to the anode; a cathode side electroconductive separator having a gas channel for supplying an oxidant gas to the cathode; characterized in that the anode and the cathode comprise a gas diffusion layer and a catalyst layer formed on the gas diffusion layer at the side in contact with the hydrogen ion conductive polymer electrolyte membrane, the catalyst layer has catalyst particles and a hydrogen ion conductive polymer electrolyte, and at least either of hydrogen ion conductivity and gas permeability of at least either of the anode and the cathode varies in a thickness direction of the anode or the cathode.
摘要翻译： 提供了一种聚合物电解质燃料电池，包括：氢离子导电聚合物电解质膜; 夹持氢离子导电聚合物电解质膜的阳极和阴极; 阳极侧导电隔板，具有用于向阳极供应燃料气体的气体通道; 阴极侧导电隔板，具有用于向阴极供给氧化剂气体的气体通道; 其特征在于，阳极和阴极包括气体扩散层和形成在与氢离子导电聚合物电解质膜接触的一侧的气体扩散层上的催化剂层，催化剂层具有催化剂颗粒和氢离子导电聚合物电解质 并且至少阳极和阴极中的任一个的氢离子传导性和气体渗透性中的至少一种在阳极或阴极的厚度方向上变化。
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公开(公告)号：US06869719B2
公开(公告)日：2005-03-22
申请号：US10330886
申请日：2002-12-27
申请人： Kazuhito Hatoh , Eiichi Yasumoto , Kazufumi Nishida , Hisaaki Gyoten , Teruhisa Kanbara , Hideo Ohara , Makoto Uchida , Yasushi Sugawara , Toshihiro Matsumoto
发明人： Kazuhito Hatoh , Eiichi Yasumoto , Kazufumi Nishida , Hisaaki Gyoten , Teruhisa Kanbara , Hideo Ohara , Makoto Uchida , Yasushi Sugawara , Toshihiro Matsumoto
CPC分类号： H01M8/02 , C08L23/22 , H01M8/0213 , H01M8/0221 , H01M8/0226 , H01M8/0228 , H01M8/0263 , H01M8/0267 , H01M8/0271 , H01M8/04029 , H01M8/04074 , H01M8/04119 , H01M8/241 , H01M8/2483 , H01M2300/0082 , Y02P70/56
摘要： A polymer electrolyte fuel cell stack that includes a cell laminate having a plurality of unit cells, which are laid one upon another and each of which includes a polymer electrolyte membrane, a pair of electrodes arranged across the polymer electrolyte membrane and having respective catalytic reaction layers, a separator having means for feeding a supply of fuel gas containing hydrogen gas to one of the electrodes, another separator having means for feeding a supply of oxidant gas to the other of the electrodes, and a manifold for feeding the supply of fuel gas or the supply of oxidant gas to the respective electrode and disposed on a side face of each unit cell. In the polymer electrolyte fuel cell stack, a sealing portion is disposed at least in the vicinity of each electrode. The polymer electrolyte fuel cell stack has excellent durability and productivity. Gasket sealing portions, a sealing portion for cooling water, and sealing portions for water and gas in an internal humidifying unit are composed of a polymer compound that has polyisobutylene as the backbone structure. This arrangement ensures high reliability.
摘要翻译： 一种聚合物电解质燃料电池堆，其包括具有多个单元电池的电池层叠体，所述电池层叠体彼此叠放并且各自包括聚合物电解质膜，跨所述聚合物电解质膜布置的一对电极，并且具有各自的催化反应层 具有将含有氢气的燃料气体供给到其中一个电极的装置的分离器，具有用于向另一个电极供给氧化剂气体的装置的另一分离器，以及用于供给燃料气体供应的歧管或 将氧化剂气体供应到各个电极并且设置在每个单电池的侧面上。 在聚合物电解质型燃料电池堆中，密封部至少设置在各电极附近。 聚合物电解质燃料电池堆具有优异的耐久性和生产率。 垫片密封部，冷却水用密封部以及内部加湿单元中的水和气体密封部由以聚异丁烯为主体结构的高分子化合物构成。 这种安排确保了高可靠性。
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公开(公告)号：US06660424B1
公开(公告)日：2003-12-09
申请号：US09763263
申请日：2001-02-20
申请人： Hisaaki Gyoten , Eiichi Yasumoto , Makoto Uchida , Yasushi Sugawara , Kazufumi Nishida , Kazuhito Hatoh , Yukiyoshi Ono , Hideo Ohara , Junji Morita , Yasuo Takebe , Teruhisa Kanbara , Osamu Sakai
发明人： Hisaaki Gyoten , Eiichi Yasumoto , Makoto Uchida , Yasushi Sugawara , Kazufumi Nishida , Kazuhito Hatoh , Yukiyoshi Ono , Hideo Ohara , Junji Morita , Yasuo Takebe , Teruhisa Kanbara , Osamu Sakai
IPC分类号： H01M214
CPC分类号： H01M8/0221 , H01M8/0223 , H01M8/0239 , H01M8/0241 , H01M8/1004 , H01M8/1007 , H01M8/2404 , H01M8/241 , H01M8/2457 , H01M2300/0082 , Y02P70/56 , Y10T29/49115
摘要： The specification discloses a fuel cell comprising stacked unit cells, each of the unit cells including a pair of electrodes having a catalytic reaction layer and a gas diffusion layer, an electrolyte layer disposed between the pair of electrodes, a separator having a flow path for supplying a fuel gas to one electrode and a separator having a flow path for supplying an oxidant gas to the other electrode, the separators being placed on the outer side of the electrodes and the unit cells being stacked with the separators placed therebetween, wherein at least the catalytic reaction layer, the gas diffusion layer or the flow path has water-repelling properties. Thereby, a fuel cell having a superior cell performance is obtained.
摘要翻译： 本说明书公开了一种燃料电池，其包括堆叠的单元电池，每个单元电池包括具有催化反应层和气体扩散层的一对电极，设置在该对电极之间的电解质层，具有用于供给的流路的隔板 一个电极的燃料气体和一个具有用于向另一个电极供应氧化剂气体的流动路径的隔板，隔板被放置在电极的外侧上，并且单元电池被堆叠在一起，隔板之间放置有至少 催化反应层，气体扩散层或流路具有防水性。 由此，获得具有优异的电池性能的燃料电池。
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公开(公告)号：US06638655B2
公开(公告)日：2003-10-28
申请号：US09829465
申请日：2001-04-10
申请人： Hisaaki Gyoten , Osamu Sakai , Kazuhito Hatoh , Junji Niikura , Makoto Uchida
发明人： Hisaaki Gyoten , Osamu Sakai , Kazuhito Hatoh , Junji Niikura , Makoto Uchida
IPC分类号： H01M812
CPC分类号： H01M8/04044 , H01M8/04029 , H01M8/04126
摘要： The invention provides a fuel cell system that is free from troubles due to contaminant ions by controlling the concentration of contaminant ions in cooling water. The fuel cell system comprises a fuel cell stack and a means for controlling the cell temperature by circulating a liquid coolant in the fuel cell stack or bringing it in contact with the fuel cell stack, the fuel cell stack comprising a plurality of unit cells that are laid one upon another, each of the unit cells comprising a hydrogen ion-conductive electrolyte membrane, a pair of gas diffusion electrodes which sandwich the electrolyte membrane, an anode-side conductive separator plate having a gas flow path for supplying a fuel gas to one of the electrodes, and a cathode-side conductive separator plate having a gas flow path for supplying an oxidant gas to the other of the electrodes, wherein a material adsorbing or absorbing ions is provided on a portion of the fuel cell system to come in contact with the liquid coolant.
摘要翻译： 本发明提供了一种燃料电池系统，其通过控制冷却水中污染物离子的浓度而不会由于污染物离子而引起的麻烦。 燃料电池系统包括燃料电池堆和用于通过使燃料电池堆中的液体冷却剂循环或使其与燃料电池堆接触来控制电池温度的装置，该燃料电池堆包括多个单电池， 彼此叠置，每个单电池包括氢离子传导电解质膜，一对夹着电解质膜的气体扩散电极，具有用于将燃料气体供应到一个的气体流路的阳极侧导电隔板 以及阴极侧导电性隔板，其具有用于将氧化剂气体供给到另一个电极的气体流路，其中吸附或吸收离子的材料设置在燃料电池系统的一部分上以接触 与液体冷却剂。
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公开(公告)号：US5929351A
公开(公告)日：1999-07-27
申请号：US64986
申请日：1998-04-23
申请人： Hiroki Kusakabe , Hisaaki Gyoten , Masuo Takigawa
发明人： Hiroki Kusakabe , Hisaaki Gyoten , Masuo Takigawa
CPC分类号： H01L35/18 , C22C1/0491 , B22F2998/00
摘要： The present invention relates to a thermoelectric material containing CoSb.sub.3 compound for converting heat to electricity, and provides a p-type thermoelectric material of CoSb.sub.3 having a high power factor by achieving high Seebeck coefficient consistently with high electric conductivity in a material of CoSb.sub.3 system without causing increase in heat conductivity. By sintering Co.sub.0.07 Pt.sub.0.03 Sb.sub.3 alloy powder using the spark plasma sintering technique, the material is densified, while growth of grains is restricted, so that a higher electric conductivity is achieved with a heat conductivity maintained in a low level, and the figure of merit as a heat-transfer material is improved. Also, by providing such heat insulating layer as an oxide intermediately in a grain boundary of a compound of CoSb.sub.3 in a sintered body, the heat conductivity is reduced. Further, the Seebeck coefficient is increased by adding a rare earth metal to the thermoelectric material of CoSb.sub.3, and allowing it to be precipitated in grain boundaries of the sintered body.
摘要翻译： 本发明涉及一种含有用于将热量转换成电的CoSb3化合物的热电材料，并且通过在CoSb3系统的材料中实现高导电率的高塞贝克系数提供具有高功率因数的p型热电材料，而不引起 导热系数增加。 通过使用放电等离子体烧结技术烧结Co0.07Pt0.03Sb3合金粉末，材料致密化，同时晶粒生长受到限制，从而在导热率保持在较低水平的情况下实现更高的导电性， 作为传热材料的优点得到改善。 此外，通过在烧结体中的CoSb 3化合物的晶界中设置作为氧化物的隔热层，导热性降低。 此外，通过向CoSb 3的热电材料中添加稀土金属并使其在烧结体的晶界析出而使塞贝克系数增加。
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8.发明授权
公开(公告)号：US5507879A
公开(公告)日：1996-04-16
申请号：US072940
申请日：1993-06-08
IPC分类号： G01K7/02 , G01N27/00 , H01L35/14 , H01L35/16 , H01L35/22 , H01L35/32 , H01L35/34 , H01L35/02
CPC分类号： H01L35/32 , G01N27/002 , H01L35/16 , H01L35/22 , H01L35/34 , Y10T428/12042
摘要： In a fine structure of a thermoelectric material, fine particles of a material exhibiting Seebeck effect are electrically linked in a loosely contacted state with one another without fusing, having spaces formed at clearances among the fine particles. A method of manufacturing the thermoelectric material comprises a step of compacting fine particles made of a material exhibiting Seebeck effect through a cold pressing. Also, disclosed is a sensor for quantitatively sensing a substance, which comprises a pellet of a powder thermoelectric material, where a temperature difference is generated between two points inside the piece of thermoelectric material. The sensor further includes thermocouples connected to a heater plate (6) and a cooling plate, and a controller which is electrically connected in the loop circuit of the thermocouples for detecting thermoelectric current corresponding to the temperature difference, thereby to control the heating of the heater plate.
摘要翻译： 在热电材料的精细结构中，具有塞贝克效应的材料的细颗粒以松散接触的状态彼此电连接而没有熔合，在细颗粒之间形成间隙。 制造热电材料的方法包括通过冷压压制由具有塞贝克效应的材料制成的细颗粒的步骤。 此外，公开了一种用于定量检测物质的传感器，其包括在热电材料片内的两点之间产生温度差的粉末热电材料的颗粒。 传感器还包括连接到加热板（6）和冷却板的热电偶，以及电连接在热电偶的回路中的控制器，用于检测对应于温度差的热电流，从而控制加热器的加热 盘子。
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公开(公告)号：US08404391B2
公开(公告)日：2013-03-26
申请号：US13359248
申请日：2012-01-26
申请人： Hisaaki Gyoten , Masato Aizawa , Akira Taomoto
发明人： Hisaaki Gyoten , Masato Aizawa , Akira Taomoto
CPC分类号： H01M8/04089 , H01M4/8642 , H01M8/04119 , H01M8/04835 , H01M8/1006
摘要： A polymer electrolyte fuel cell includes a cathode, an anode, and an electrolyte membrane sandwiched between the cathode and the anode. A plurality of projections each having a height of 5 to 15 μm or a plurality of depressions each having a depth of 5 to 15 μm are formed on a surface of the electrolyte membrane, the surface being opposed to the cathode. The cathode is constituted by a catalyst layer formed to tightly contact the surface of the electrolyte membrane and having a maximum thickness that is one to three times the height of the projection or the depth of the depression. An oxygen-containing gas having a relative humidity of 10% or less is supplied to the cathode, and electric power is generated by using the polymer electrolyte fuel cell.
摘要翻译： 聚合物电解质燃料电池包括阴极，阳极和夹在阴极和阳极之间的电解质膜。 表面与阴极相对，在电解质膜的表面上形成有高度为5〜15μm的多个突起，或多个深度为5〜15μm的凹部。 阴极由形成为紧密接触电解质膜表面的催化剂层构成，其最大厚度为突起高度或凹陷深度的一至三倍。 将相对湿度为10％以下的含氧气体供给阴极，通过使用聚合物电解质型燃料电池产生电力。
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公开(公告)号：US20120189924A1
公开(公告)日：2012-07-26
申请号：US13359248
申请日：2012-01-26
申请人： Hisaaki GYOTEN , Masato Aizawa , Akira Taomoto
发明人： Hisaaki GYOTEN , Masato Aizawa , Akira Taomoto
CPC分类号： H01M8/04089 , H01M4/8642 , H01M8/04119 , H01M8/04835 , H01M8/1006
摘要： A polymer electrolyte fuel cell includes a cathode, an anode, and an electrolyte membrane sandwiched between the cathode and the anode. A plurality of projections each having a height of 5 to 15 μm or a plurality of depressions each having a depth of 5 to 15 μm are formed on a surface of the electrolyte membrane, the surface being opposed to the cathode. The cathode is constituted by a catalyst layer formed to tightly contact the surface of the electrolyte membrane and having a maximum thickness that is one to three times the height of the projection or the depth of the depression. An oxygen-containing gas having a relative humidity of 10% or less is supplied to the cathode, and electric power is generated by using the polymer electrolyte fuel cell.
摘要翻译： 聚合物电解质燃料电池包括阴极，阳极和夹在阴极和阳极之间的电解质膜。 表面与阴极相对，在电解质膜的表面上形成有高度为5〜15μm的多个突起，或多个深度为5〜15μm的凹部。 阴极由形成为紧密接触电解质膜表面的催化剂层构成，其最大厚度为突起高度或凹陷深度的一至三倍。 将相对湿度为10％以下的含氧气体供给阴极，通过使用聚合物电解质型燃料电池产生电力。
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