公开(公告)号：JPS56146857A

公开(公告)日：1981-11-14

申请号：JP4767880

申请日：1980-04-11

Applicant: SUMITOMO METAL IND

Inventor： TARUYA YOSHIO ,  MOROISHI DAIJI ,  KOIKE MASAO

IPC: C22C38/00 ,  C22C38/18

Abstract: PURPOSE:To considerably enhance the rust and acid resistances of an inexpensive ferritic stainless steel by strictly regulating the S content of the steel and specifying the composition. CONSTITUTION:The composition of a ferritic stainless steel is composed of, by wt., =C%X8+0.2%) and the balance Fe with inevitable impurities. The C and N contents are restricted as low as possible from the viewpoint of the rust and acid resistances, and the upper limits are regulated as mentioned above in case of 10% Cr in relation to the Cr concn. As the S content is reduced, the acid resistance is enhanced remarkably, and the tendency to gather rust in an aqueous NaCl soln. is diminished, so the upper limit is regulated practically. In order to attain the low S content, basic slag or an additive such as Ca-Si or metallic Ca is used. When the Cu content is below the lower limit, rust and acid resistances are not provided. Below the lower limit value of Cr results in no corrosion resistance, and the ultra-low sulfurizing effect is lost in case of above the upper limit value of Cr. Below the lower limit value of Nb does not enhance the rust and acid resistances.

公开(公告)号：JP2008091207A

公开(公告)日：2008-04-17

申请号：JP2006270684

申请日：2006-10-02

Applicant: Sumitomo Metal Ind Ltd ,  住友金属工業株式会社

Inventor： TARUYA YOSHIO ,  HIGASHIDA YASUTO ,  IMAMURA JUNKO ,  YAMADE YOSHIAKI

IPC: H01M8/02 ,  H01M8/10

CPC classification number: Y02E60/521

Abstract: PROBLEM TO BE SOLVED: To provide a polymer electrolyte fuel cell capable of promptly running a coolant or the like without leaking it. SOLUTION: This polymer electrolyte fuel cell has this adhesive layer for a polymer electrolyte fuel cell characterized by containing 8-35 vol.% of conductive fine particle powder of which the average particle diameter is not larger than 25 μm, and in which 50 vol.% of all the particles have each a particle diameter not smaller than 5 μm; and is structured such that an intermediate plate 1-3 is sandwiched between, and brought into contact with an anode facing plate 1-1 and a cathode facing plate 1-2. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供能够迅速运行冷却剂等而不使其泄漏的聚合物电解质燃料电池。 解决方案：该聚合物电解质燃料电池具有用于聚合物电解质燃料电池的粘合剂层，其特征在于含有8-35体积％的平均粒径不大于25微米的导电细颗粒粉末，其中 所有颗粒的50体积％的粒径均不小于5μm; 并且构造成使得中间板1-3夹在阳极面对板1-1和阴极面对板1-2之间并与其接触。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008027742A

公开(公告)日：2008-02-07

申请号：JP2006199132

申请日：2006-07-21

Applicant: Sumitomo Metal Ind Ltd ,  住友金属工業株式会社

Inventor： DOI NORIFUMI ,  KUDO TAKEO ,  SEKI AKIRA ,  TARUYA YOSHIO

IPC: H01M8/04 ,  H01M8/02 ,  H01M8/10

CPC classification number: Y02E60/521

Abstract: PROBLEM TO BE SOLVED: To provide a means to recover deterioration of conductivity (IR loss increase) seen in a solid polymer fuel cell using a stainless steel separator.
SOLUTION: Acid aqueous solution with pH 1-5 containing fluorine ions of 0.001 mass% (1 ppm) or more is filled in a fuel cell through a stainless steel separator. By this treatment, not only IR loss increase due to deposition of a corrosion product on the stainless steel separator decreases, but also suppression effect of the IR loss increase continues even after the treatment. The treatment can be implemented during the operation of the cell without stopping the power generation of the fuel cell.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供使用不锈钢隔板在固体聚合物燃料电池中看到的电导率劣化（IR损耗增加）的方法。 解决方案：含有0.001质量％（1ppm）以上的氟离子的含pH 1-5的酸性水溶液通过不锈钢隔板填充在燃料电池中。 通过这种处理，不仅由于在不锈钢隔板上沉积腐蚀产物引起的IR损失增加，而且即使在处理之后IR损失增加的抑制效果仍然持续。 可以在电池运行期间实现处理，而不停止燃料电池的发电。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2006216442A

公开(公告)日：2006-08-17

申请号：JP2005029055

申请日：2005-02-04

Applicant: Sumitomo Metal Ind Ltd ,  住友金属工業株式会社

Inventor： HAMAOGI KENJI ,  TARUYA YOSHIO ,  SEKI AKIRA ,  DOI NORIFUMI

IPC: H01M8/02 ,  H01M8/10

CPC classification number: Y02E60/521

Abstract: PROBLEM TO BE SOLVED: To prevent the ununiformity of gas flow rate in a unit cell. SOLUTION: In a separator for a fuel cell equipped with two or more parallel passage group inverting gas flow direction and a passage inverting part (length L, width W), when the number of parallel grooves on the upstream side (downstream side) of a gas flow joining point is represented by N (M), the width of the groove by W 1 -W N (W' 1 -W' M ), the width of a crest by w 1 -w N (w' 1 -w' M-1 ), the length L and the width H satisfy the formula (wherein Re is Reynolds number of gas measured in a flow passage). COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：为了防止单元电池中气体流量的不均匀性。 解决方案：在具有两个或更多个平行通道组反转气体流动方向和通道翻转部分（长度L，宽度W）的燃料电池分离器中，当上游侧（下游侧） ）由N（M）表示，沟槽的宽度为W -W N （W' 1 -W' M ），波峰的宽度为w <1> -W N -w' M-1 ），长度L和宽度H满足式（其中Re是在流路中测量的气体的雷诺数）。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005298960A

公开(公告)日：2005-10-27

申请号：JP2004155600

申请日：2004-05-26

Applicant: Sumitomo Metal Ind Ltd ,  住友金属工業株式会社

Inventor： KANBE SOSUKE ,  TARUYA YOSHIO ,  OGAWA KAZUHIRO ,  USHIO KUNIHIKO ,  SEKI AKIRA ,  ISHIGURO TAKESHI ,  YAZAWA TAKEO ,  YAMAMOTO HIDEAKI ,  OBA TAKEISA

IPC: B21B1/38 ,  B21B3/02 ,  B23K20/00 ,  B23K103/04 ,  C21D8/02 ,  C22C38/00 ,  C22C38/54 ,  C22C38/58 ,  H01M8/02 ,  H01M8/10

CPC classification number: Y02P70/56

Abstract: PROBLEM TO BE SOLVED: To provide a multilayer-clad stainless steel plate having an outer layer made of steel containing boron (B), which is optimal for a separator of a solid polymer type fuel cell.
SOLUTION: (1) The multilayer-clad stainless steel plate for the separator of the solid polymer type fuel cell is formed by combining an inner layer made of stainless steel containing 0-0.3 mass% B, with the outer layer made of stainless steel containing 0.3-2.5 mass% B on one surface or both surfaces of the inner layer. (2) The method for manufacturing the multilayer-clad stainless steel plate for the separator of the solid polymer type fuel cell comprises the steps of: heating the above material for the clad steel plate to 1,000 to 1,200°C; rough-rolling it; subsequently hot-rolling it at a finishing temperature of 600°C or higher; and then cold-rolling it.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种具有由含硼（B）的钢制成的外层的多层包覆不锈钢板，其对于固体聚合物型燃料电池的隔板是最佳的。 解决方案：（1）固体聚合物型燃料电池用隔板的多层包覆不锈钢板是将含有0〜0.3质量％B的不锈钢制的内层与外层为 在内层的一个表面或两个表面上含有0.3-2.5质量％的B的不锈钢。 （2）固体高分子型燃料电池用隔膜的多层包覆型不锈钢板的制造方法，其特征在于，将上述复合钢板用材料加热至1000〜1200℃， 粗轧; 然后在600℃以上的终轧温度下进行热轧， 然后冷轧。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2002151111A

公开(公告)日：2002-05-24

申请号：JP2000343949

申请日：2000-11-10

Applicant: SUMITOMO METAL IND

Inventor： SEKI AKIRA ,  TARUYA YOSHIO ,  DOI NORIFUMI ,  FUKUDA SHINJI

IPC: H01M8/02 ,  H01M8/10

Abstract: PROBLEM TO BE SOLVED: To provide a solid polymer fuel cell with high cell characteristics even if stainless steel having relatively large contact resistance is used as a separator material. SOLUTION: This solid polymer fuel cell has an anode side separator and a cathode side separator both made of stainless steed, for constituting a unit cell, and the contact area of an anode with the separator and the contact area of a cathode with the separator are formed in a ratio of 0.3 to 0.7 when the anode area and the cathode area is specified as 1. A carbide base metal compound, a boride base metal compound both are conductive may be exposed to the surfaces of the separators made of stainless steel to reduce corrosion resistance.

公开(公告)号：JP2001059141A

公开(公告)日：2001-03-06

申请号：JP23139699

申请日：1999-08-18

Applicant: SUMITOMO METAL IND

Inventor： TARUYA YOSHIO ,  TSUGE SHINJI ,  NISHIYAMA YOSHITAKA ,  HISAYOSHI TAKAYUKI

IPC: C22C38/00 ,  C22C38/40

Abstract: PROBLEM TO BE SOLVED: To impart excellent welding high temp. cracking resistance and high temp. salt damage corrosion resistance to steel by allowing it to contain respectively specified ratios of elements and specifying Nf value and a forming index. SOLUTION: Austenitic stainless steel contg., by weight, 0.004 to 0.07% C, 2.5 to 4.5% Si, 0.05 to 2% Mn, 14 to 21% Cr, 9 to 16% Ni, 0.005 to 0.1% N, 0 to

公开(公告)号：JP2000328205A

公开(公告)日：2000-11-28

申请号：JP14406599

申请日：1999-05-24

Applicant: SUMITOMO METAL IND

Inventor： TARUYA YOSHIO ,  SEKI AKIRA ,  DOI NORIFUMI

IPC: H01M8/02 ,  C22C38/00 ,  C22C38/54 ,  H01M8/10

Abstract: PROBLEM TO BE SOLVED: To provide ferritic stainless steel small in contact electric resistance and small in eluted metallic ions even in the case of being used in a solid state, particularly, in a separator environment of a solid high polymer type fuel cell without executing expensive surface treatment and to provide a solid high polymer type fuel cell provided with a separator composed of the stainless steel. SOLUTION: This ferritic stainless steel contains, by weight,

公开(公告)号：JP2000309854A

公开(公告)日：2000-11-07

申请号：JP11546199

申请日：1999-04-22

Applicant: SUMITOMO METAL IND

Inventor： TARUYA YOSHIO ,  SEKI AKIRA ,  DOI NORIFUMI

IPC: H01M8/02 ,  C22C38/00 ,  C22C38/44 ,  C22C38/58 ,  H01M8/10

Abstract: PROBLEM TO BE SOLVED: To produce an austenitic stainless steel for current-carrying electric parts, minimal in contact electric resistance, and to provide a separator composed of the stainless steel, and a solid-electrolyte-type fuel cell having the separator. SOLUTION: The austenitic stainless steel has a composition containing, by weight, 0.015-0.2% C. 0.01-1.5% Si. 0.01-2.5% Mn, 17-30% Cr, 7-50% Ni, 0-3% Cu, 0-0.3% N, 0-7% Mo, and 0-0.2% Al and satisfying Cr+3Mo=17 to 50%, and further, the content of C precipitating as a Cr carbide and the total content of C in the steel satisfy inequality (content (wt.%) of C precipitating as Cr carbide)×100/(total C content (wt.%) in the steel-0.012%)>=85. A fuel cell 1 is provided with a separator 5 composed of the stainless steel.

公开(公告)号：JP2000265248A

公开(公告)日：2000-09-26

申请号：JP7304899

申请日：1999-03-18

Applicant: SUMITOMO METAL IND

Inventor： TARUYA YOSHIO ,  SEKI AKIRA ,  DOI NORIFUMI

IPC: H01M8/02 ,  C22C38/00 ,  C22C38/22

Abstract: PROBLEM TO BE SOLVED: To use the subject steel as being pure not subjected to expensive gold plating and to allow it to exhibit excellent electric characteristics by preparing stainless steel contg. specified ratios of S, P, V, Ni, Cu, Cr, Mo and rare earth elements, and in which the prescribed total of Cr and Mo is controlled to a specified range. SOLUTION: Ferritic stainless steel for a separator having a compsn. contg., by weight,