公开(公告)号：US07722977B2

公开(公告)日：2010-05-25

申请号：US11198779

申请日：2005-08-05

申请人： Masahiko Sato ,  Takahiro Takai ,  Makoto Tsuji ,  Masao Utsunomiya ,  Hayato Kaji ,  Shuhei Goto ,  Satoru Terada

发明人： Masahiko Sato ,  Takahiro Takai ,  Makoto Tsuji ,  Masao Utsunomiya ,  Hayato Kaji ,  Shuhei Goto ,  Satoru Terada

IPC分类号： H01M2/00 ,  H01M2/02 ,  H01M8/12

CPC分类号： H01M8/0206 ,  H01M8/0247 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/0271 ,  H01M8/0297 ,  H01M8/04029 ,  H01M8/241 ,  H01M8/242 ,  H01M8/2483 ,  H01M8/2484

摘要： A terminal plate, an insulating plate, and an end plate are stacked on a stack body. The terminal plate has current collectors at least at lower portions of an oxygen-containing gas supply passage, a coolant supply passage, a fuel gas discharge passage, a fuel gas supply passage, a coolant discharge passage, and an oxygen-containing gas discharge passage. The current collectors contact the water generated in the reaction or a coolant for collecting electricity.

摘要翻译： 端子板，绝缘板和端板堆叠在堆叠体上。 端子板至少在含氧气体供给通道，冷却剂供给通道，燃料气体排出通道，燃料气体供应通道，冷却剂排出通道和含氧气体排出通道的至少下部具有集流器 。 电流收集器接触反应中产生的水或用于收集电力的冷却剂。

公开(公告)号：US20060040159A1

公开(公告)日：2006-02-23

申请号：US11198779

申请日：2005-08-05

申请人： Masahiko Sato ,  Takahiro Takai ,  Makoto Tsuji ,  Masao Utsunomiya ,  Hayato Kaji ,  Shuhei Goto ,  Satoru Terada

发明人： Masahiko Sato ,  Takahiro Takai ,  Makoto Tsuji ,  Masao Utsunomiya ,  Hayato Kaji ,  Shuhei Goto ,  Satoru Terada

IPC分类号： H01M2/02

CPC分类号： H01M8/0206 ,  H01M8/0247 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/0271 ,  H01M8/0297 ,  H01M8/04029 ,  H01M8/241 ,  H01M8/242 ,  H01M8/2483 ,  H01M8/2484

摘要： A terminal plate, an insulating plate, and an end plate are stacked on a stack body. The terminal plate has current collectors at least at lower portions of an oxygen-containing gas supply passage, a coolant supply passage, a fuel gas discharge passage, a fuel gas supply passage, a coolant discharge passage, and an oxygen-containing gas discharge passage. The current collectors contact the water generated in the reaction or a coolant for collecting electricity.

摘要翻译： 端子板，绝缘板和端板堆叠在堆叠体上。 端子板至少在含氧气体供给通道，冷却剂供给通道，燃料气体排出通道，燃料气体供应通道，冷却剂排出通道和含氧气体排出通道的至少下部具有集流器 。 电流收集器接触反应中产生的水或用于收集电力的冷却剂。

公开(公告)号：US20050095489A1

公开(公告)日：2005-05-05

申请号：US10942628

申请日：2004-09-28

申请人： Makoto Tsuji ,  Masajiro Inoue ,  Masao Utsunomiya ,  Teruyuki Otani ,  Takashi Kuwayama ,  Takahiro Takai

发明人： Makoto Tsuji ,  Masajiro Inoue ,  Masao Utsunomiya ,  Teruyuki Otani ,  Takashi Kuwayama ,  Takahiro Takai

IPC分类号： H01M8/02 ,  B05D5/12 ,  B32B15/01 ,  B32B15/20 ,  H01M8/10

CPC分类号： B32B15/015 ,  B32B15/01 ,  B32B15/018 ,  C25D5/02 ,  H01M8/0206 ,  H01M8/0223 ,  H01M8/0228 ,  Y02P70/56 ,  Y10T428/12708 ,  Y10T428/12896 ,  Y10T428/12903 ,  Y10T428/12944

摘要： A metallic separator for a fuel cell (and a manufacturing method therefore) can reduce damage to an electrode assembly, open up the maximum capacity of the reducing effect of contact resistance due to coating of gold by gold plating or the like, and reduce consumption of gold to lower the cost. Conductive inclusions are exposed at the surface with corrosion resistance, and at least one kind of metal or an alloy thereof selected from silver, copper, nickel, and tin is precipitated on the exposed conductive inclusions. From the viewpoint of reducing contact resistance, the conductive inclusions preferably protrude from the separator surface.

摘要翻译： 用于燃料电池的金属隔板（及其制造方法）可以减少对电极组件的损害，从而打开由镀金等镀金导致的接触电阻的降低效果的最大容量，并减少 黄金降低成本。 导电夹杂物在表面暴露于耐腐蚀性，并且至少一种选自银，铜，镍和锡的金属或其合金沉淀在暴露的导电夹杂物上。 从降低接触电阻的观点出发，导电性夹杂物优选从隔板表面突出。

公开(公告)号：US20060177723A1

公开(公告)日：2006-08-10

申请号：US11345837

申请日：2006-02-01

申请人： Shigeru Inai ,  Masao Utsunomiya ,  Hiromichi Yoshida ,  Satoru Terada ,  Ryo Jinba ,  Makoto Tsuji ,  Ichiro Tanaka

发明人： Shigeru Inai ,  Masao Utsunomiya ,  Hiromichi Yoshida ,  Satoru Terada ,  Ryo Jinba ,  Makoto Tsuji ,  Ichiro Tanaka

IPC分类号： H01M8/02 ,  H01M8/24 ,  H01M8/10

CPC分类号： H01M8/0206 ,  H01M8/04156 ,  H01M8/241 ,  H01M8/2457 ,  H01M8/2483

摘要： A stacked body is formed by stacking a plurality of power generation cells in a stacking direction. End power generation cells are provided at opposite ends of the stacked body in the stacking direction. Each of the power generation cells includes a membrane electrode assembly and first and second metal separators sandwiching the membrane electrode assembly therebetween. The end power generation cells include first outer separators and second outer separators. The first outer separators are more highly hydrophilic in comparison with the first and second metal separators of the power generation cells.

摘要翻译： 通过在层叠方向堆叠多个发电电池而形成层叠体。 在层叠体的堆叠方向的相对端部设置有端部发电电池。 每个发电单元包括膜电极组件和将膜电极组件夹在其间的第一和第二金属分离器。 末端发电单元包括第一外隔板和第二外隔板。 与发电单元的第一和第二金属分离器相比，第一外部隔板具有更高的亲水性。

公开(公告)号：US20060068262A1

公开(公告)日：2006-03-30

申请号：US11267154

申请日：2005-11-07

申请人： Teruyuki Ohtani ,  Makoto Tsuji ,  Masao Utsunomiya

发明人： Teruyuki Ohtani ,  Makoto Tsuji ,  Masao Utsunomiya

IPC分类号： H01M8/02 ,  B32B15/01 ,  B05D5/12

CPC分类号： H01M8/0206 ,  C25D5/36 ,  H01M8/021 ,  H01M8/0228 ,  Y10T428/12889 ,  Y10T428/12951

摘要： A separator for a fuel cell comprising a gold covering layer formed on the surface of stainless steel plate a method for producing a separator, in which exfoliation and fracture of the gold covering layer can be prevented and corrosion resistance and durability can be obtained, are provided. Voids are formed by intergranular corrosion treatment at a surface of the stainless steel plate, and the gold covering layer is formed so as to be embedded in the voids. Limit value of radius of curvature in bends in which exfoliations or fractures in the gold covering layer is formed can be reduced by satisfying the equation 0.2≦4/d/L≦80 wherein L(μm) is the average grain size of the surface of stainless steel plate, and d(μm) is the thickness of the gold covering layer.

公开(公告)号：US07014938B2

公开(公告)日：2006-03-21

申请号：US10477135

申请日：2002-07-22

申请人： Teruyuki Ohtani ,  Makoto Tsuji ,  Masao Utsunomiya

发明人： Teruyuki Ohtani ,  Makoto Tsuji ,  Masao Utsunomiya

IPC分类号： H01M2/00

CPC分类号： H01M8/0206 ,  H01M8/0228 ,  Y10T428/12569 ,  Y10T428/12889

摘要： A separator for fuel cells which has a gold covering layer on the surface of a metal plate and is formed by plastic working, wherein the relationship (R+D)/R≦1.025 (50 μm≦R≦1000 μm) is satisfied assuming the minimum bending radius R at a plastic worked portion is R (μm), and the thickness of the gold covering layer is D (μm). According to the separator for fuel cells, exfoliation or cracking is prevented in the gold covering layer after plastic working, whereby corrosion resistance and durability can be remarkably improved.

摘要翻译： 一种用于燃料电池的隔板，其在金属板的表面上具有金覆盖层，并且通过塑性加工形成，其中，（R + D）/ R <= 1.025（50μm<= R <=1000μm） 假设塑性加工部分的最小弯曲半径R为R（mum），金覆盖层的厚度为D（mum）。 根据燃料电池用隔板，塑料加工后的金覆盖层防止剥离或开裂，能够显着提高耐腐蚀性和耐久性。

公开(公告)号：US20050255357A1

公开(公告)日：2005-11-17

申请号：US10507688

申请日：2003-03-07

申请人： Masao Utsunomiya ,  Makoto Tsuji ,  Teruyuki Ohtani

发明人： Masao Utsunomiya ,  Makoto Tsuji ,  Teruyuki Ohtani

IPC分类号： H01M8/02 ,  B05D5/12 ,  B32B15/01 ,  H01M8/10

CPC分类号： H01M8/0228 ,  H01M8/0206 ,  H01M8/021 ,  H01M2008/1095 ,  Y02P70/56 ,  Y10T428/12889

摘要： In the present invention, conductive inclusions which form conductive passages are exposed on a surface of a separator having corrosion resistance, and gold is selectively precipitated on the exposed conductive inclusions. From the viewpoint of contact resistance reduction, it is desirable that the conductive inclusions protrude from the surface of the separator.

摘要翻译： 在本发明中，形成导电通路的导电性夹杂物暴露在具有耐腐蚀性的隔膜的表面上，并且在露出的导电性夹杂物上选择性析出金。 从接触电阻降低的观点出发，希望导电性夹杂物从隔板的表面突出。

公开(公告)号：US20080292937A1

公开(公告)日：2008-11-27

申请号：US11966374

申请日：2007-12-28

申请人： Teruyuki OHTANI ,  Makoto Tsuji ,  Masao Utsunomiya ,  Koji Kotani

发明人： Teruyuki OHTANI ,  Makoto Tsuji ,  Masao Utsunomiya ,  Koji Kotani

IPC分类号： H01M2/00

CPC分类号： H01M8/0206 ,  H01M8/0228 ,  H01M8/0254 ,  H01M8/026 ,  Y02P70/56 ,  Y10T29/49108

摘要： A metallic separator according to a first embodiment is formed by obtaining a blank by rolling a metallic material having conductive inclusions, and removing a surface of the blank by 2% or more of the thickness of the blank. A metallic separator according to a second embodiment is formed by pressing a metallic plate so as to have a cross section including ridges and grooves alternatively, and removing parts of the ridged portions so as to make flattened surfaces. A metallic separator having conductive inclusions in its metal texture according to a third embodiment is formed by blasting a liquid containing two or more kinds of abrasives having different particle diameters to a blank after it has been rolled. A metallic separator having conductive inclusion in its metal texture according to a fourth embodiment is formed by blasting a passivation treatment liquid mixed with abrasives to the separator.

公开(公告)号：US06953636B2

公开(公告)日：2005-10-11

申请号：US10169800

申请日：2001-11-06

申请人： Teruyuki Ohtani ,  Makoto Tsuji ,  Masao Utsunomiya

发明人： Teruyuki Ohtani ,  Makoto Tsuji ,  Masao Utsunomiya

IPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/54 ,  C23C26/00 ,  C23C28/00 ,  C23C30/00 ,  H01M2/00 ,  C22C27/06 ,  B32B15/04

CPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/54 ,  C23C26/00 ,  C23C30/00 ,  H01M8/021 ,  H01M8/0213 ,  H01M8/0228 ,  H01M8/0254 ,  H01M8/026 ,  Y10T428/12354 ,  Y10T428/1241 ,  Y10T428/31678

摘要： A press separator made of a stainless steel sheet, for providing excellent corrosion resistance and electric conductivity by a combination of a passive coating and a deposition of boride or boron carbide, restriction corrosion without separation or coming-off, by press forming, of depositions, and ensuring an extended service. A stainless steel sheet, containing 0.005-1.5 wt. %, of B and having deposited on the surface thereof at least one kind out of M23 (C, B)6 type boron carbide, and M2B type and MB type borides, is press-formed in a corrugated shape having continuous irregularities, with angles of bent portions formed by bending or unbending by press forming being set at at least 15 degrees and an outward bending R-value at up to 1 mm.

摘要翻译： 由不锈钢板制成的压力分隔器，通过钝化涂层和硼化物或碳化硼的沉积来提供优异的耐腐蚀性和导电性，不会分离或脱落的限制腐蚀，压制成型，沉积， 并确保延长服务。 不锈钢板，含有0.005-1.5重量％ 的B，并且在其表面上沉积了M 23（C，B）6 N型碳化硼中的至少一种，M 2， B型和MB型硼化物被压制成具有连续不规则性的波状形状，通过冲压成形弯曲或不弯曲形成的弯曲部分的角度被设定在至少15度和向外弯曲的R值 长达1毫米。

公开(公告)号：US06884363B2

公开(公告)日：2005-04-26

申请号：US10169791

申请日：2001-11-06

申请人： Teruyuki Ohtani ,  Makoto Tsuji ,  Masao Utsunomiya

发明人： Teruyuki Ohtani ,  Makoto Tsuji ,  Masao Utsunomiya

IPC分类号： C22C38/42 ,  C22C38/44 ,  C22C38/54 ,  C23C22/50 ,  C23C26/00 ,  C23C28/00 ,  C23F1/00 ,  C25F3/06

CPC分类号： H01M8/0223 ,  C22C38/42 ,  C22C38/44 ,  C22C38/54 ,  C23C22/50 ,  C23C26/00 ,  C23G1/086 ,  H01M8/021 ,  H01M8/0213

摘要： A method for treating the surface of a stainless steel product for a fuel cell containing, in wt %, 0.15% or less of C, 17 to 36% of Cr, 0.005 to 3.5% of B, which comprises the first step of forming in advance a passive film with an oxidizing acid on the surface of the stainless steel product, the second step of allowing an aqueous acid solution to corrode the passive film, to thereby project one or more of a M23C6 type carbide, a M23(C, B)6 type borocarbide and M2B type boride, which are inclusions having good electroconductivity, the third step of forming a passive coating film with an oxidizing acid on the surface of the steel product except that of the inclusion above projected, and the fourth step of washing with water and drying. The method of treatment allows, without the use of a method requiring a high cost such as gold plating, the improvement in the contact resistance of the stainless steel product for a fuel cell, which results in the retention of excellent characteristics of a stainless steel product over a long period of time.

摘要翻译： 一种用于处理燃料电池的不锈钢产品的表面的方法，所述燃料电池含有以重量％计含量为0.15％或更少的C，17至36％的Cr，0.005至3.5％的B，其包括第一步形成 在不锈钢产品的表面上推进具有氧化酸的钝化膜，第二步是使酸性水溶液腐蚀钝化膜，从而投入一个或多个M 23 C 类型碳化物，M 23（C，B）6碳化硼和M 2 B型硼化物， 其是具有良好导电性的夹杂物，除了上述夹杂物以外，在钢制品的表面上形成具有氧化性酸的钝化涂膜的第三步骤，以及用水洗涤和干燥的第四步骤。 该处理方法不需要使用诸如镀金等高成本的方法，能够提高燃料电池用不锈钢制品的接触电阻，从而保持不锈钢制品的优异特性 在很长一段时间内。