公开(公告)号：US06436567B1

公开(公告)日：2002-08-20

申请号：US09147968

申请日：1999-03-24

申请人： Kazuo Saito ,  Atsushi Hagiwara ,  Fumio Tanno ,  Toshiharu Okamoto ,  Kazutoshi Hamada

发明人： Kazuo Saito ,  Atsushi Hagiwara ,  Fumio Tanno ,  Toshiharu Okamoto ,  Kazutoshi Hamada

IPC分类号： H01M216

CPC分类号： C08K3/04 ,  C04B35/52 ,  C08K2201/008 ,  C08K2201/016 ,  H01M8/0213

摘要： The present invention provides a separator for fuel cell which alleviates the problems of the prior art, which has high conductivity, high gas impermeability and high strength, and which can be produced easily. The separator for fuel cell according to the present invention is a molding comprising a conductive carbon powder and a polymer compound, wherein the conductive carbon powder in the molding has an aspect ratio of 4 to 60.

摘要翻译： 本发明提供了一种减轻现有技术的问题的燃料电池用隔膜，其具有高导电性，高气体不渗透性和高强度，并且可以容易地制造。 根据本发明的燃料电池用隔膜是包含导电性碳粉末和高分子化合物的成型体，其中，成型体中的导电性碳粉末的纵横比为4〜60。

公开(公告)号：US06461755B1

公开(公告)日：2002-10-08

申请号：US09588559

申请日：2000-06-07

申请人： Kazuo Saito ,  Atsushi Hagiwara ,  Fumio Tanno ,  Yasuo Imashiro ,  Naofumi Horie ,  Tsutomu Uehara

发明人： Kazuo Saito ,  Atsushi Hagiwara ,  Fumio Tanno ,  Yasuo Imashiro ,  Naofumi Horie ,  Tsutomu Uehara

IPC分类号： H01M200

CPC分类号： C08K3/04 ,  C08K5/29 ,  C08L67/00

摘要： The present invention provides: an electroconductive resin composition comprising: (A) a liquid crystal polyester resin capable of forming an anisotropic melt phase, in an amount of 100 parts by weight, (B) a carbodiimide compound in an amount of 0.01 to 30 parts by weight, (C) an electroconductive carbon powder in an amount of 50 to 3,000 parts by weight, and (D) a filler in an amount of 0 to 10,000 parts by weight; a fuel cell separator made of the above electroconductive resin composition; a process for producing the above fuel cell separator; and a solid polymer type fuel cell using the above fuel cell separator. The electroconductive resin composition alleviates the problems of the prior art, can be mass-produced, and is superior in high temperature resistance and hydrolysis resistance.

摘要翻译： 本发明提供一种导电树脂组合物，其包含：（A）能够形成各向异性熔融相的液晶聚酯树脂，其量为100重量份，（B）0.01至30重量份的碳二亚胺化合物 （C）50〜3000重量份的导电性碳粉末，（D）0〜10000重量份的填料;由上述导电性树脂组合物构成的燃料电池用隔板; 一种生产上述燃料电池隔板的方法; 和使用上述燃料电池隔板的固体聚合物型燃料电池。导电树脂组合物减轻了现有技术的问题，可以批量生产，并且耐高温性和耐水解性优异。

公开(公告)号：US06242124B1

公开(公告)日：2001-06-05

申请号：US09374004

申请日：1999-08-16

申请人： Kazuo Saito ,  Atsushi Hagiwara ,  Fumio Tanno

发明人： Kazuo Saito ,  Atsushi Hagiwara ,  Fumio Tanno

IPC分类号： H01M802

CPC分类号： C04B35/536 ,  H01M8/0213 ,  H01M8/0226 ,  H01M2300/0082 ,  Y02P70/56 ,  Y10T29/49108

摘要： The present invention provides: a separator for a polymer electrolyte fuel cell, interposed between the gas diffusion electrodes of the fuel cell and having, in at least one side, a groove for supply of an oxidizing agent or a fuel gas, which separator is made of a carbon composite material comprising (a) 100 parts by weight of an expanded graphite powder and (b) 10-45 parts by weight of a thermosetting resin dispersed in the expanded graphite powder (a), wherein the expanded graphite powder has an average particle diameter of 5-12 &mgr;m and at least 80% of the total particles of the expanded graphite powder have particle diameters of 0.1-20 &mgr;m. The separator for polymer electrolyte fuel cells according to the present invention is lightweight, can be grooved precisely and easily, and has a high gas barrier property, strength and electroconductivity.

摘要翻译： 本发明提供一种用于固体高分子型燃料电池的隔板，插入在燃料电池的气体扩散电极之间，至少在一侧具有用于供给氧化剂或燃料气体的槽，该隔板被制成 的碳复合材料，其包含（a）100重量份的膨胀石墨粉末和（b）10-45重量份分散在所述膨胀石墨粉末（a）中的热固性树脂，其中所述膨胀石墨粉末具有平均 5-12μm的粒径和至少80％的膨胀石墨粉末的总颗粒的粒径为0.1-20μm。 根据本发明的聚合物电解质燃料电池用隔膜是轻质的，可以精确且容易地开槽，并且具有高阻气性，强度和导电性。

公开(公告)号：US06803139B2

公开(公告)日：2004-10-12

申请号：US09897638

申请日：2001-07-03

申请人： Kazuo Saito ,  Atsushi Hagiwara ,  Yasuo Imashiro ,  Naofumi Horie ,  Fumio Tanno ,  Tsutomu Uehara

发明人： Kazuo Saito ,  Atsushi Hagiwara ,  Yasuo Imashiro ,  Naofumi Horie ,  Fumio Tanno ,  Tsutomu Uehara

IPC分类号： H01M804

CPC分类号： H01M8/0226 ,  H01B1/24 ,  Y02P70/56

摘要： Disclosed herein are an electrically conductive resinous composition composed mainly of an electrically conductive carbon powder and a binding agent, wherein said binding agent is a mixture of a thermoplastic resin and a carbodiimide compound, a fuel cell separator and a process for production thereof, and polymer electrolyte fuel cell. The present invention permits efficient mass production of fuel cell separators having high elasticity, good releasability, good dimensional accuracy, and good gas impermeability. The polymer electrolyte fuel cell, in which all or part of separators are those pertaining to the present invention, is immune to the cracking of separators at the time of assembling, decreases only a little in output after continuous operation, and exhibits good gas sealing performance and high impact resistance.

摘要翻译： 本文公开了主要由导电碳粉末和粘合剂组成的导电性树脂组合物，其中所述粘合剂是热塑性树脂和碳二亚胺化合物的混合物，燃料电池隔板及其制备方法，以及聚合物 电解液燃料电池。 本发明允许高弹性，良好的脱模性，良好的尺寸精度和良好的不透气性的燃料电池隔板的有效批量生产。 其中全部或部分分离器是本发明的分离器的聚合物电解质燃料电池在组装时不受分离器的破裂的影响，连续运行后的输出仅减少一些，并且表现出良好的气体密封性能 和高抗冲击性。

公开(公告)号：US06348279B1

公开(公告)日：2002-02-19

申请号：US09288108

申请日：1999-04-08

申请人： Kazuo Saito ,  Atsushi Hagiwara ,  Fumio Tanno

发明人： Kazuo Saito ,  Atsushi Hagiwara ,  Fumio Tanno

IPC分类号： H01M200

CPC分类号： H01M8/0204 ,  H01M8/0206 ,  H01M8/0213 ,  H01M8/0221 ,  H01M8/0226 ,  H01M8/0228 ,  Y02P70/56

摘要： The present invention provides a separator for a polymer electrolyte fuel cell, having, at the surface contacting with the electrode of the fuel cell, a surface roughness of Ra=0.1 to 10 &mgr;m when measured by a surface roughness tester having a probe of 5 &mgr;m in front end diameter; and a process for producing the above separator for a polymer electrolyte fuel cell, which process comprises immersing a molding of a separator for a polymer electrolyte fuel cell, in an acidic solution. The above separator for a polymer electrolyte fuel cell alleviates the problems of the prior art and has low contact resistance at the interface with the electrode of the fuel cell.

摘要翻译： 本发明提供了一种用于固体高分子型燃料电池的隔板，在与具有5um的探针的表面粗糙度测试仪测量时，在与燃料电池的电极接触的表面处，Ra = 0.1〜10μm的表面粗糙度 前端直径; 以及制造上述固体高分子型燃料电池用隔板的工序，其特征在于，在酸性溶液中浸渍聚合物电解质型燃料电池用隔膜的成型体。 上述用于聚合物电解质燃料电池的隔板缓解了现有技术的问题，并且在与燃料电池的电极的界面处具有低接触电阻。

公开(公告)号：US6024900A

公开(公告)日：2000-02-15

申请号：US69099

申请日：1998-04-29

申请人： Kazuo Saito ,  Atsushi Hagiwara ,  Fumio Tanno

发明人： Kazuo Saito ,  Atsushi Hagiwara ,  Fumio Tanno

IPC分类号： C04B35/536 ,  C08K3/04 ,  F28F21/02 ,  C01B31/00

CPC分类号： C08K3/04 ,  C04B35/536 ,  F28F21/02

摘要： The present invention provides a carbon composite material which is a molded material comprising (a) an expanded graphite powder and (b) a thermoplastic resin or a thermosetting resin or a fired product of the thermosetting resin, and the expanded graphite powder (a) being dispersed in the component (b), wherein the expanded graphite powder has an average particle diameter of 5-12 .mu.m and at least 80% of the total particles of the expanded graphite powder have particle diameters of 0.1-20 .mu.m; and a process for producing a carbon composite material, which comprises mixing and dispersing a thermoplastic or thermosetting resin and the expanded graphite powder as mentioned above, and then pressure-molding the resulting mixture at room temperature to 400.degree. C., or a process for producing a carbon composite material, which comprises mixing and dispersing a thermosetting resin and the expanded graphite powder as mentioned above, pressure-molding the resulting mixture at room temperature to 400.degree. C., and firing the resulting molding at 700-3,000.degree. C. in a non-oxidizing atmosphere. The carbon composite material produced by the above process is free from the problems of the prior art and is superior in both gas non-permeability and electroconductivity.

摘要翻译： 本发明提供一种碳复合材料，其是模塑材料，其包含（a）膨胀石墨粉末和（b）热塑性树脂或热固性树脂或热固性树脂的烧制产品，并且所述膨胀石墨粉末（a）为 分散在组分（b）中，其中膨胀石墨粉末的平均粒径为5-12μm，并且膨胀石墨粉末的总颗粒的至少80％的粒径为0.1-20μm; 以及碳复合材料的制造方法，其包括将上述的热塑性或热固性树脂和膨胀石墨粉混合分散，然后在室温〜400℃下对所得混合物进行加压成型，或者 制备碳复合材料，其包括如上所述混合和分散热固性树脂和膨胀石墨粉末，在室温至400℃下对所得混合物进行加压成型，并将所得模制物在700-3000℃下煅烧。 在非氧化性气氛中。 通过上述方法制备的碳复合材料没有现有技术的问题，并且在气体非导磁率和导电性两者中都是优异的。

公开(公告)号：US5776372A

公开(公告)日：1998-07-07

申请号：US651561

申请日：1996-05-22

申请人： Kazuo Saito ,  Atsushi Hagiwara ,  Fumio Tanno

发明人： Kazuo Saito ,  Atsushi Hagiwara ,  Fumio Tanno

IPC分类号： C04B35/536 ,  C08K3/04 ,  F28F21/02 ,  H01B1/24 ,  H01B1/18

CPC分类号： C08K3/04 ,  C04B35/536 ,  F28F21/02

摘要： The present invention provides a carbon composite material which is a molded material comprising (a) an expanded graphite powder and (b) a thermoplastic resin or a thermosetting resin or a fired product of the thermosetting resin, and the expanded graphite powder (a) being dispersed in the component (b); wherein the expanded graphite powder has an average particle diameter of 5-12 .mu.m and at least 80% of the total particles of the expanded graphite powder have particle diameters of 0.1-20 .mu.m; and a process for producing a carbon composite material, which comprises mixing and dispersing a thermoplastic or thermosetting resin and the expanded graphite powder as mentioned above, and then pressure-molding the resulting mixture at room temperature to 400.degree. C., or a process for producing a carbon composite material, which comprises mixing and dispersing a thermosetting resin and the expanded graphite powder as mentioned above, pressure-molding the resulting mixture at room temperature to 400.degree. C., and firing the resulting molding at 700.degree.-3,000.degree. C. in a non-oxidizing atmosphere. The carbon composite material produced by the above process is free from the problems of the prior art and is superior in both gas non-permeability and electroconductivity.

摘要翻译： 本发明提供一种碳复合材料，其是模塑材料，其包含（a）膨胀石墨粉末和（b）热塑性树脂或热固性树脂或热固性树脂的烧制产品，并且所述膨胀石墨粉末（a）为 分散在组分（b）中; 其中，所述膨胀石墨粉末的平均粒径为5〜12μm，所述膨胀石墨粉末的总粒子的至少80％的粒径为0.1-20μm; 以及碳复合材料的制造方法，其包括将上述的热塑性或热固性树脂和膨胀石墨粉混合分散，然后在室温〜400℃下对所得混合物进行加压成型，或者 制备碳复合材料，其包括如上所述混合和分散热固性树脂和膨胀石墨粉末，在室温至400℃下对所得混合物进行加压成型，并将所得模制物在700-3000℃ 在非氧化性气氛中。 通过上述方法制备的碳复合材料没有现有技术的问题，并且在气体非导磁率和导电性两者中都是优异的。

公开(公告)号：US06890678B2

公开(公告)日：2005-05-10

申请号：US10447157

申请日：2003-05-29

申请人： Fumio Tanno

发明人： Fumio Tanno

IPC分类号： C08L61/06 ,  C08L63/00 ,  H01B1/24 ,  H01M8/02 ,  H01M1/24

CPC分类号： C08L63/00 ,  B29K2063/00 ,  C08L61/06 ,  H01B1/24 ,  H01M8/0213 ,  H01M8/0221 ,  H01M8/0226 ,  C08L2666/14

摘要： A separator for fuel cell, obtained by molding a resin composition comprising 100 parts by weight of a graphite, 15 to 30 parts by weight of a bisphenol A type epoxy resin, 2 to 4 parts by weight of a phenolic resin, and 1 to 10 parts by weight of a polycarbodiimide resin, which, unlike the prior art, is superior in moldability, electrical conductivity and mechanical strength and causes no cracking during molding even when made in a small thickness.

摘要翻译： 一种燃料电池用隔板，其通过将包含100重量份石墨，15〜30重量份双酚A型环氧树脂，2〜4重量份酚醛树脂和1〜10重量份的树脂组合物 重量份的聚碳二亚胺树脂，其与现有技术不同，在成型性，导电性和机械强度方面优异，并且即使制成小厚度也不会在成型期间产生开裂。

公开(公告)号：US20120077111A1

公开(公告)日：2012-03-29

申请号：US13376423

申请日：2010-07-22

申请人： Fumio Tanno

发明人： Fumio Tanno

IPC分类号： H01M8/04

CPC分类号： H01M8/0226 ,  C08G59/08 ,  C08G59/4042 ,  C08G59/621 ,  C08K3/04 ,  C08L63/00 ,  H01M8/0213 ,  H01M8/0221 ,  H01M2008/1095

摘要： Provided is a fuel cell separator that has excellent resistance to heat and hot water and has a glass transition temperature between 140° C. and 165° C. Said fuel cell separator is formed by curing a composition containing a graphite material and a binder component resin. The binder component resin contains a cresol novolac epoxy resin having a hydrolysable chlorine content of at most 450 ppm and an epoxy equivalent weight of 192-210 g/eq, a phenol resin having a hydroxyl equivalent weight of 103-106 g/eq, and an imidazole compound having a molecular weight between 140 and 180.

摘要翻译： 提供了具有优异的耐热和耐热水性并且玻璃化转变温度在140℃至165℃之间的燃料电池隔板。所述燃料电池隔板通过固化含有石墨材料和粘合剂成分树脂的组合物而形成 。 粘合剂成分树脂含有可水解氯含量为最多450ppm，环氧当量为192〜210g / eq的甲酚酚醛清漆型环氧树脂，羟基当量为103〜106g / eq的酚醛树脂，以及 分子量在140和180之间的咪唑化合物。

公开(公告)号：US20060263670A1

公开(公告)日：2006-11-23

申请号：US11437659

申请日：2006-05-22

申请人： Fumio Tanno

发明人： Fumio Tanno

IPC分类号： H01M8/02 ,  H01B1/24

CPC分类号： H01M8/026 ,  H01M8/0213 ,  H01M8/0221 ,  H01M8/0226

摘要： A fuel cell bipolar plate obtained by subjecting a body shaped from a specific composition to surface roughening treatment and atmospheric pressure plasma treatment has a gas flow channel face with specific surface characteristics which endow the bipolar plate with an excellent and long-lasting hydrophilicity that enables water which forms during power generation by the fuel cell to be easily drained off, and which also provide the bipolar plate with a low contact resistance with electrodes in the fuel cell.

摘要翻译： 通过使来自特定组成的物体进行表面粗糙化处理和大气压等离子体处理而获得的燃料电池双极板具有具有特定表面特性的气体流路面，赋予双极板优异且持久的亲水性，能够使水 这在燃料电池的发电期间形成，以便容易地排出，并且还使得双极板与燃料电池中的电极具有低接触电阻。