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：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：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：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：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：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：US06764624B2

公开(公告)日：2004-07-20

申请号：US09854588

申请日：2001-05-15

申请人： Kazuo Saito ,  Toshiharu Okamoto ,  Atsushi Hagiwara ,  Ayumi Horiuchi

发明人： Kazuo Saito ,  Toshiharu Okamoto ,  Atsushi Hagiwara ,  Ayumi Horiuchi

IPC分类号： D21B104

CPC分类号： H01M8/0226 ,  B29C43/006 ,  B29K2303/04 ,  B29K2503/04 ,  B29K2995/0005 ,  H01M8/0213 ,  H01M8/1007 ,  Y02P70/56

摘要： A method of producing a fuel cell separator in which dry granules of a composition for a fuel cell separator mainly containing a conductive material, a binder, and an additive are produced by mixing raw materials including at least the conductive material, the binder, and the additive, granulating the resultant mixture to obtain granules, and drying the granules. The dry granules may be further sized. Then the granules are packed in a mold and hot-press molded. The granules have a residual volatile matter content in a range of 4 weight-% or less, and an average particle size in a range of 200 to 700 &mgr;m (60 to 160 &mgr;m for the sized granules) and a specific particle size distribution.

摘要翻译： 一种燃料电池隔板的制造方法，其中，主要含有导电性材料，粘合剂和添加剂的燃料电池隔板用组合物的干燥颗粒通过混合至少包含导电性材料，粘合剂和 将所得混合物造粒得到颗粒，并干燥颗粒。 干颗粒可以进一步定尺寸。 然后将颗粒包装在模具中并热压成型。 颗粒的残留挥发物含量在4重量％以下，平均粒径在200〜700μm的范围内（粒径为60〜160μm），粒径分布特定。

公开(公告)号：US06686083B1

公开(公告)日：2004-02-03

申请号：US09691213

申请日：2000-10-19

申请人： Kazuo Saito ,  Atsushi Hagiwara ,  Takashi Maki ,  Atsushi Miyazawa

发明人： Kazuo Saito ,  Atsushi Hagiwara ,  Takashi Maki ,  Atsushi Miyazawa

IPC分类号： H01M200

CPC分类号： H01M8/0226 ,  C04B35/83 ,  H01M8/0213 ,  H01M8/0221 ,  H01M2300/0082 ,  Y02P70/56

摘要： A carbonaceous composite material molded from a carbonaceous composite compound composed mainly of graphite, a thermosetting resin, and a fibrous base material, wherein molding is carried out in such a way that said fibrous base material is oriented in said carbonaceous composite material; a process for producing said carbonaceous composite material; a fuel cell separator having said carbonaceous composite material as a component; and a polymer electrolyte fuel cell. The carbonaceous composite material can be produced by injection molding, transfer molding or extrusion molding without difficulties encountered in the past. It has high strength, with a minimum amount of warpage. It contributes to productivity.

摘要翻译： 由主要由石墨，热固性树脂和纤维基材构成的碳质复合材料成型的碳质复合材料，其中以使所述纤维基材在所述碳质复合材料中取向的方式进行成型; 一种生产所述含碳复合材料的方法; 具有所述碳质复合材料作为组分的燃料电池隔板; 和聚合物电解质燃料电池。 碳质复合材料可以通过注射成型，传递模塑或挤出成型制造，而不会在过去遇到困难。 具有很高的强度，最小的翘曲。 它有助于生产力。

公开(公告)号：US06593021B1

公开(公告)日：2003-07-15

申请号：US09692106

申请日：2000-10-20

申请人： Kazuo Saito ,  Atsushi Hagiwara ,  Ayumi Horiuchi

发明人： Kazuo Saito ,  Atsushi Hagiwara ,  Ayumi Horiuchi

IPC分类号： H01M200

CPC分类号： H01M8/0213 ,  H01M2300/0082

摘要： Fuel cell separators having on one side or both sides thereof channels for gas supply and discharge, which channels are formed from compositions composed mainly of thermosetting resin and graphite particles. The compositions are designed to have a flexural modulus of at most 20 GPa and a flexural strength of at least 50 MPa (both measured according to JIS K6911). Also disclosed is a solid polymer type fuel cell system in which part or all of its separators are fuel cell separators as defined above. Due to its high strength and low flexural modulus, the fuel cell separators of the invention do not break as a result of deformation at the time of fuel cell assembly. Moreover, the fuel cell separators of the invention absorb shocks and vibration imparted to the fuel cell system. Therefore, they is useful for automobile fuel cells which are normally subject to vibrations and shocks during operation.

摘要翻译： 燃料电池分离器在其一侧或两侧具有用于气体供给和排出的通道，该通道由主要由热固性树脂和石墨颗粒组成的组合物形成。 该组合物设计为具有至多20GPa的弯曲模量和至少50MPa的弯曲强度（均根据JIS K6911测量）。 还公开了固体聚合物型燃料电池系统，其中部分或全部分离器是如上所述的燃料电池分离器。 由于其高强度和低弯曲模量，本发明的燃料电池隔板由于燃料电池组装时的变形而不会破裂。 此外，本发明的燃料电池分离器吸收对燃料电池系统施加的冲击和振动。 因此，它们对于在运行中通常受到振动和冲击的汽车燃料电池是有用的。