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1. 发明专利

JP2004197188A METHOD FOR ELECTROLYTICALLY REMOVING Cu PLATED LAYER 审中-公开
公开(公告)号：JP2004197188A
公开(公告)日：2004-07-15
申请号：JP2002369132
申请日：2002-12-20
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： IZUMI KEIJI , MIYANO TSUTOMU , MATSUO SHOICHI
IPC分类号： C25F5/00
摘要： PROBLEM TO BE SOLVED: To electrolytically remove a Cu plated layer from a face of requiring no plating without dissolving a base steel, to recover it as massive metal Cu, and to obtain a single-sided Cu plated steel strip.
SOLUTION: This method for electrolytically removing the Cu plated layer from the no plating required face comprises immersing the Cu plated steel strip in an electrolytic bath with a pH of 8.5 to 12.0 containing 5 g/l or more Cu ions and 30 g/l or more pyrophosphoric acid ions (P
2 O
7
4- ), facing a counter electrode to the no plating required face, and electrolyzing it at an anodic current-density of 1 to 30 A/dm
2 . The Cu plated layer can be selectively removed from the face of requiring no plating, by anodically electrolyzing the no plating required face while placing it so as to face the counter electrode, but if the other face to have the Cu plated layer left thereon is masked, the Cu plated layer can be prevented from deteriorating by anodic electrolysis.
COPYRIGHT: (C)2004,JPO&NCIPI

2. 发明专利

JP2002367622A Separator for low temperature type fuel cell and manufacturing method of the same 有权
标题翻译：低温型燃料电池分离器及其制造方法
公开(公告)号：JP2002367622A
公开(公告)日：2002-12-20
申请号：JP2001168735
申请日：2001-06-04
申请人： Nisshin Steel Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 日新製鋼株式会社
发明人： MIYANO TSUTOMU , SHIMIZU TAKESHI , IZUMI KEIJI , MORITA YOSHIKAZU , YATSUGAMI YUICHI , TAKAHASHI TAKESHI
IPC分类号： C25D11/34 , C23C22/34 , C23C22/50 , H01M8/02 , H01M8/10
CPC分类号： C25F3/06 , H01M8/021 , H01M8/0228 , H01M2008/1095 , Y02P70/56
摘要： PROBLEM TO BE SOLVED: To provide a separator for a low temperature type fuel cell made to have low contact resistance and excellent corrosion resistant property by forming a dense barrier thin film on a stainless steel with roughened surface.
SOLUTION: For the separator, many pits are formed on the whole surface of a stainless steel plate by surface roughening treatment, and the stainless steel plate has such a shape of surface that the periphery of the pits are bristled with fine projections, and dense barrier thin film is formed on the roughened surface by a passivation treatment after the roughening treatment. The separator is formed by applying passivation treatment like hydrofluoric acid and nitric acid bath or nitric acid bath after the surface roughening treatment.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：通过在具有粗糙表面的不锈钢上形成致密的阻挡薄膜，提供一种低温型燃料电池用隔膜，该隔热件具有低接触电阻和优异的耐腐蚀性。解决方案：对于隔板，通过表面粗糙化处理在不锈钢板的整个表面上形成许多凹坑，并且不锈钢板具有这样的表面形状，使得凹坑的周边具有细小的突起，并且致密的屏障在粗糙化处理后通过钝化处理在粗糙化表面上形成薄膜。通过在表面粗糙化处理后应用钝化处理如氢氟酸和硝酸浴或硝酸浴形成隔板。

3. 发明专利

JP2003297380A Stainless steel separator for fuel cell 审中-公开
标题翻译：燃料电池不锈钢分离器
公开(公告)号：JP2003297380A
公开(公告)日：2003-10-17
申请号：JP2002101602
申请日：2002-04-03
申请人： Nisshin Steel Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 日新製鋼株式会社
发明人： MORITA YOSHIKAZU , KAMOSHITA SHINICHI , SHIMIZU TAKESHI , MIYANO TSUTOMU , IZUMI KEIJI , YATSUGAMI YUICHI , TAKAHASHI TAKESHI , KAJIKAWA YOSHIAKI , KODAMA KOUTA
IPC分类号： C23F3/00 , H01M2/14 , H01M8/02 , H01M8/10
CPC分类号： H01M8/021 , C23G1/081 , C25F3/06 , Y10T428/12993
摘要： PROBLEM TO BE SOLVED: To provide a stainless steel separator for a fuel cell providing compatibility between low contact resistances and high corrosion resistances. SOLUTION: In the separator for the fuel cell, a steel plate surface facing a fuel electrode 3 is pickled and a steel plate surface facing an oxide electrode 2 is subjected to surface roughening such as electrolytic etching. The surface roughening can be applied before or after pickling and passivation processes. Or the roughened steel plate surface can be used in an oxide electrode 2 side without applying the pickling and passivation processes. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用于燃料电池的不锈钢隔板，其提供低接触电阻和高耐腐蚀性之间的兼容性。解决方案：在用于燃料电池的隔板中，将面向燃料电极3的钢板表面酸洗，并且面对氧化物电极2的钢板表面经受诸如电解蚀刻的表面粗糙化。表面粗糙化可以在酸洗和钝化过程之前或之后进行。或者粗糙化的钢板表面可以用于氧化物电极2侧，而不进行酸洗和钝化处理。版权所有（C）2004，JPO

4. 发明专利

JP2004050772A Heat-resistant clear pre-coat metallic plate excellent in design performance 有权
公开(公告)号：JP2004050772A
公开(公告)日：2004-02-19
申请号：JP2002214962
申请日：2002-07-24
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： IZUMI KEIJI , SHIMIZU TAKESHI , MIYANO TSUTOMU
IPC分类号： B05D5/00 , B05D5/06 , B05D7/14 , B05D7/24 , B32B15/08
摘要： PROBLEM TO BE SOLVED: To provide a heat-resistant clear pre-coat metallic plate having the exterior displaying peculiar design performance, and excellent in heat resistance, corrosion resistance and food stain resistance. SOLUTION: The heat-resistant clear pre-coat metallic plate comprises a clear coating film of an alkyl silicone resin, wherein a semitransparent scaly inorganic powder is dispersed, on a substrate metallic plate with metallic luster. The alkyl silicone resin consists of one or more kinds of mixtures or polymers selected from the group consisting of a methyl silicone resin, a phenyl silicone resin and a methyl phenyl silicone resin. A low-soluble metallic powder consisting of an aluminum flake, a stainless steel flake, a glass flake, an alumina flake, mica powder, talc powder, lamellar kaolin, a barium sulfate flake or the like, or an oxide is used for the scaly inorganic powder, and a transparent oxide consisting of TiO 2 , SiO 2 , ZrO 2 , Fe 2 O 3 , Fe 3 O 4 , SnO 2 , Cr 2 O 3 , ZnO, Al 2 O 3 or the like is coated as the need arises. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2003297379A Manufacturing method of separator for low temperature fuel cell 审中-公开
标题翻译：低温燃料电池分离器的制造方法
公开(公告)号：JP2003297379A
公开(公告)日：2003-10-17
申请号：JP2002094538
申请日：2002-03-29
申请人： Nisshin Steel Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 日新製鋼株式会社
发明人： SHIMIZU TAKESHI , MIYANO TSUTOMU , KAMOSHITA SHINICHI , MORITA YOSHIKAZU , IZUMI KEIJI , YATSUGAMI YUICHI , TAKAHASHI TAKESHI , KAJIKAWA YOSHIAKI , KODAMA KOUTA
IPC分类号： H01M8/02 , H01M8/10
CPC分类号： Y02P70/56
摘要： PROBLEM TO BE SOLVED: To manufacture a stainless steel separator with further reduced contact resistance showing superior corrosion resistance after surface roughening by alternating electrolytic etching in a ferric chloride aqueous solution. SOLUTION: The separator improved in both the corrosion resistance and contact resistance is manufactured by using a stainless steel plate raw material containing 0.5 mass% or more Cu, applying the alternating electrolytic etching of alternately carrying out anodic electrolysis at an electric potential of +0.5 VvsSCE or more and cathodic electrolysis at an electric potential in a range of -0.2 to -0.8 VvsSCE in the ferric chloride aqueous solution, roughening one face or both faces of a stainless steel plate, forming a multiplicity of pits with bristling microscopic protrusions in circumferential rims throughout the whole surface, and forming a barrier layer film mainly comprising oxide or hydroxide of Cr entrapping Cu or Cu oxide. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：制造具有进一步降低的接触电阻的不锈钢隔板，通过在氯化铁水溶液中交替电解蚀刻，在表面粗糙化后显示出优异的耐腐蚀性。解决方案：通过使用含有0.5质量％以上的Cu的不锈钢板原料来制造耐腐蚀性和接触电阻两者的隔膜，施加交替进行阳极电解的交替电解蚀刻，电位为 +0.5VvsSCE以上，在氯化铁水溶液中在-0.2〜-0.8VvsSCE范围内的电位进行阴极电解，使不锈钢板的一面或两面粗糙化，形成多个具有刷毛微观突起的凹坑在整个表面的圆周边缘中，并且形成主要包含Cr或Cu氧化物的Cr的氧化物或氢氧化物的阻挡层膜。版权所有（C）2004，JPO

6. 发明专利

JP2002367621A Solid polymer fuel cell 审中-公开
标题翻译：固体聚合物燃料电池
公开(公告)号：JP2002367621A
公开(公告)日：2002-12-20
申请号：JP2001168734
申请日：2001-06-04
申请人： Nisshin Steel Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 日新製鋼株式会社
发明人： MIYANO TSUTOMU , SHIMIZU TAKESHI , IZUMI KEIJI , MORITA YOSHIKAZU , KAMOSHITA SHINICHI , KANAZUKI TOSHIKI , TAKAHASHI TAKESHI , YATSUGAMI YUICHI
IPC分类号： H01M8/02 , H01M8/10
CPC分类号： Y02E60/521
摘要： PROBLEM TO BE SOLVED: To provide a solid polymer fuel cell having a metal separator 5 restrained from corrosion, maintaining high power generating efficiency for long time. SOLUTION: The solid polymer fuel cell has a structure of interposing an oxidation electrode 2 and a fuel electrode 3, arranged on both surfaces of the solid polymer film 1, between metal separators 5. Products of erosion are preliminarily removed from the solid polymer film 1, the oxidation electrode 2, and the fuel electrode 3 by the cleaning using boiling water, or by the electrolytic reaction of water generated by humid atmosphere or electricity conduction in the water solution, and a stainless steel, on the surface of which, a Ni layer is formed, is used as a metal separator 5. As the products of erosion are preliminarily removed from a thin film electrode assembly, pH is not lowered when the operation of the fuel cell is started, and as the essential excellent electron conductive property of Ni is maintained for long time, a solid polymer fuel cell with small loss of Joule heat is obtained.
摘要翻译：要解决的问题：提供具有抑制腐蚀的金属隔板5的固体高分子型燃料电池，长时间保持高发电效率。解决方案：固体聚合物燃料电池具有在固体聚合物膜1的两个表面上设置在金属隔板5之间的氧化电极2和燃料电极3的结构。预先从固体聚合物膜1中除去侵蚀产物，氧化电极2和燃料电极3，通过使用沸水的清洗，或通过在水溶液中产生的潮湿气氛或电传导的水的电解反应，以及不锈钢，其表面上的Ni 作为金属隔膜5使用。由于从薄膜电极组件中预先除去侵蚀的产物，因此当燃料电池的操作开始时，pH值不降低，并且作为基本优异的电子传导性能 Ni长时间保持，获得了焦耳热损失小的固体聚合物燃料电池。

7. 发明专利

JP4629914B2 A separator and a method of manufacturing the same for low-temperature fuel cell 有权
公开(公告)号：JP4629914B2
公开(公告)日：2011-02-09
申请号：JP2001168735
申请日：2001-06-04
申请人：トヨタ自動車株式会社 , 日新製鋼株式会社
发明人： MIYANO TSUTOMU , SHIMIZU TAKESHI , IZUMI KEIJI , MORITA YOSHIKAZU , YATSUGAMI YUICHI , TAKAHASHI TAKESHI
IPC分类号： C25D11/34 , H01M8/02 , C23C22/34 , C23C22/50 , H01M8/10
CPC分类号： C25F3/06 , H01M8/021 , H01M8/0228 , H01M2008/1095 , Y02P70/56

8. 发明专利

JP2003213459A SURFACE TREATED STEEL SHEET HAVING EXCELLENT CORROSION RESISTANCE AND SPOT WELDABILITY AND PRODUCTION METHOD THEREFOR 审中-公开
公开(公告)号：JP2003213459A
公开(公告)日：2003-07-30
申请号：JP2002017858
申请日：2002-01-28
申请人： NISSHIN STEEL CO LTD
发明人： WATANABE EIJI , SHIMIZU TAKESHI , MIYANO TSUTOMU , IZUMI KEIJI
IPC分类号： C25D9/10 , C23C22/36 , C23C28/04
摘要： PROBLEM TO BE SOLVED: To provide a chromium-free, surface treated steel sheet which has excellent corrosion resistance, film adhesion and spot weldability. SOLUTION: On the surface treated steel sheet, a nonchromic inorganic chemical conversion treatment film is formed via a metal oxide film containing one or more kinds of elements selected from the group consisting of Al, Ti, Zr, La, Mg and Mo, and formed by cathode electrolytic treatment. The metal oxide film is formed by dipping a steel sheet into a treatment solution of pH 1 to 5 and containing one or more kinds of elements selected from the group consisting of Al, Ti, Zr, La, Mg and Mo at a metal ion concentration of 10 to 1,000 m mol/L, and performing cathode electrolytic treatment thereto. After the formation of the metal oxide film, a nonchromic chemical conversion treatment solution is applied to the surface of the steel sheet, and, without water washing, dried to produce the surface treatment steel sheet. Phosphoric acid may be added to the treatment solution used for the cathode electrolysis at a concentration of 0.5 to 5 g/L. COPYRIGHT: (C)2003,JPO

9. 发明专利

JP2003132904A SEPARATOR FOR FUEL CELL AND METHOD OF MANUFACTURING THE SAME 审中-公开
公开(公告)号：JP2003132904A
公开(公告)日：2003-05-09
申请号：JP2001324316
申请日：2001-10-23
申请人： NISSHIN STEEL CO LTD , TOYOTA MOTOR CORP
发明人： NAGOSHI TOSHIRO , HARADA WAKAHIRO , MORITA YOSHIKAZU , MIYANO TSUTOMU , IZUMI KEIJI , YATSUGAMI YUICHI , WADA MIKIO , TAKAHASHI TAKESHI , KAJIKAWA YOSHIAKI , KODAMA KOUTA
IPC分类号： C25F3/06 , C22C38/00 , C22C38/40 , C22C38/44 , H01M8/02 , H01M8/10
摘要： PROBLEM TO BE SOLVED: To provide a separator for a fuel cell, which has low contact resistance and excellent corrosion resistance. SOLUTION: In the separator for the fuel cell, a stainless steel plate is provided as a base material, which includes Cr of 15.0-25.0 weight %, Ni of 2.5 weight % or less, N of 0.1-0.5 weight %, and if necessary, Mo of 10.0 weight % or less. The base material is modified to the surface configuration wherein a number of fine pits (d) are formed across the surface of the base material and fine projections (p) stand together in the periphery of the pits (d). By alternately performing electrolysis etching on the stainless steel plate of the predetermined composition in ferric chloride solution, the base material is modified to the surface configuration wherein a number of the pits (d) wherein fine projections (p) stand together in the periphery are formed throughout the base material.

10. 发明专利

JP2003123785A SEPARATOR FOR LOW TEMPERATURE FUEL CELL 审中-公开
公开(公告)号：JP2003123785A
公开(公告)日：2003-04-25
申请号：JP2001319555
申请日：2001-10-17
申请人： NISSHIN STEEL CO LTD , TOYOTA MOTOR CORP
发明人： MIYANO TSUTOMU , SHIMIZU TAKESHI , IZUMI KEIJI , MORITA YOSHIKAZU , YATSUGAMI YUICHI , WADA MIKIO , TAKAHASHI TAKESHI , KODAMA KOUTA , KAJIKAWA YOSHIAKI
IPC分类号： H01M8/02 , H01M8/10
摘要： PROBLEM TO BE SOLVED: To provide a highly durable fuel cell by using a stainless steel plate having roughened one face/both faces and one face plated with Ni or Cu-plated face as a separator base material. SOLUTION: Using the stainless steel plate as the base material, Ni-plating layer or a Cu-plating layer is arranged on the steel plate surface facing a fuel electrode in the fuel cell, and in the other face facing an oxidation electrode, the surface is reformed to have minute projections protruded in the circumference of multiple minute pits. On the oxidation electrode side exposed to a severe corrosion environment, contact resistance is lowered by formation of the minute pits while natural corrosion resistance of the stainless steel is used. On the fuel electrode side exposed to a comparatively gentle corrosion environment, contact resistance is further lowered by the Ni or Cu plating layer.

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