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    Method of surface treatment for stainless steel product for fuel cell
    2.
    发明授权
    Method of surface treatment for stainless steel product for fuel cell 失效
    燃料电池不锈钢产品表面处理方法

    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。

    Method for manufacturing fuel cell metallic separator
    3.
    发明授权
    Method for manufacturing fuel cell metallic separator 有权
    制造燃料电池金属隔板的方法

    公开(公告)号：US07325432B2

    公开(公告)日：2008-02-05

    申请号：US10309320

    申请日：2002-12-04

    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： H01M8/02

    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.

    摘要翻译： 根据第一实施例的金属隔板通过轧制具有导电夹杂物的金属材料并且将坯料的表面除去坯料厚度的2％或更多来获得坯料而形成。 根据第二实施例的金属隔板通过按压金属板而形成，以便具有交替地包括脊和槽的横截面，并且去除脊部的一部分以使其变平。 根据第三实施方式的金属组织中具有导电夹杂物的金属隔板通过在轧制之后将含有两种或更多种具有不同粒径的研磨剂的液体喷涂到坯料上而形成。 通过将与研磨剂混合的钝化处理液喷射到分离器，形成根据第四实施例的金属组织中具有导电夹杂物的金属隔板。

    Press separator for fuel cell
    4.
    发明申请
    Press separator for fuel cell 审中-公开
    用于燃料电池的压力分离器

    公开(公告)号：US20050249999A1

    公开(公告)日：2005-11-10

    申请号：US11180642

    申请日：2005-07-14

    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 ,  H01M8/02 ,  B21D13/00

    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。

    Current-collecting structure in fuel cell system
    5.
    发明授权
    Current-collecting structure in fuel cell system 有权
    燃料电池系统中的集电结构

    公开(公告)号：US06861172B2

    公开(公告)日：2005-03-01

    申请号：US09977189

    申请日：2001-10-16

    申请人： Teruyuki Ohtani ,  Masao Utsunomiya ,  Makoto Tsuji

    发明人： Teruyuki Ohtani ,  Masao Utsunomiya ,  Makoto Tsuji

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

    CPC分类号： H01M8/0297 ,  H01M8/0213 ,  H01M8/0223 ,  H01M8/0226 ,  H01M8/0247 ,  H01M8/241 ,  H01M2008/1095

    摘要： A current-collecting structure in a fuel cell system includes conductive separators, current-collecting plates pressed toward the conductive separators, a plurality of good conductors dispersed between the conductive separators and the current-collecting plates and adapted to be deformed under the pressing to come into close contact with the conductive separators and the current-collecting plates, and a conductive binder. The conductive binder fills vacant spaces among the good conductors, the conductive separators and the current-collecting plates. The current-collecting structure in a fuel cell system provides a decreased contact resistance between the conductive separator and the current-collecting plate.

    摘要翻译： 燃料电池系统中的电流收集结构包括导电隔离件，朝向导电隔板挤压的集流板，分散在导电隔板和集电板之间的多个良好导体，并且适于在压制下变形 与导电分离器和集电板紧密接触，以及导电粘合剂。 导电粘合剂填充好的导体，导电隔板和集电板之间的空隙。 燃料电池系统中的电流收集结构在导电分离器和集电板之间提供降低的接触电阻。

    Separator for fuel cell and fuel cell
    6.
    发明授权
    Separator for fuel cell and fuel cell 有权
    燃料电池和燃料电池分离器

    公开(公告)号：US06858339B2

    公开(公告)日：2005-02-22

    申请号：US10000328

    申请日：2001-12-04

    申请人： Masao Utsunomiya ,  Teruyuki Ohtani ,  Makoto Tsuji

    发明人： Masao Utsunomiya ,  Teruyuki Ohtani ,  Makoto Tsuji

    IPC分类号： H01M8/02 ,  H01M8/10 ,  H01M2/02

    CPC分类号： H01M8/0254 ,  H01M8/0206 ,  H01M8/0247 ,  H01M8/0258 ,  H01M8/026 ,  H01M8/0267 ,  H01M8/0273 ,  H01M8/241

    摘要： A fuel-cell-use separator is provided with a current collector unit having an irregular shape in its cross-section in which grooved gas passages and/or cooling medium passages and protruding portions contacting a membrane electrode assembly are alternately formed continuously, and a circumferential portion formed on the periphery of the current collector unit, the current collector unit and the circumferential portion being formed by press forming a sheet of metal plate, and in this arrangement, a rib is formed on the circumferential portion.

    摘要翻译： 燃料电池用隔板在其截面中具有不规则形状的集电体单元，其中沟槽气体通道和/或冷却介质通道和与膜电极组件接触的突出部分交替地连续地形成，并且周向 形成在集电体单元的周围的部分，集电体单元和周向部分通过冲压成形金属板而形成，并且在该布置中，在周向部分上形成肋。

    Fuel cell
    7.
    发明申请
    Fuel cell 审中-公开
    燃料电池

    公开(公告)号：US20050014053A1

    公开(公告)日：2005-01-20

    申请号：US10494668

    申请日：2002-10-23

    申请人： Teruyuki Ohtani ,  Makoto Tsuji ,  Masao Utsunomiya

    发明人： Teruyuki Ohtani ,  Makoto Tsuji ,  Masao Utsunomiya

    IPC分类号： B21D22/28 ,  H01M8/02 ,  H01M8/04 ,  H01M8/10

    CPC分类号： C22C38/42 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  C22C38/54 ,  H01M8/0206 ,  H01M8/0247 ,  H01M8/026 ,  H01M8/04156 ,  Y02P70/56

    摘要： In a fuel cell comprising a laminate wherein a membrane electrode assembly is held by separators, the separator (20A) has a projection (21) contacting an membrane electrode assembly (10) with the contact angle between this projection (21) and the membrane electrode assembly (10) is set smaller than the contact angle of water with respect to the surface of the separator (20A). Regardless of the surface property of the separator, a corner part formed between the separator projection and membrane electrode assembly which contact with each other is so structured that water is unlikely to remain or penetrate. Thus, the draining capability of the gas channel is enhanced, improving power generating performance.

    摘要翻译： 在包括膜电极组件由隔板保持的层压体的燃料电池中，隔板（20A）具有与膜电极组件（10）接触的突起（21），该突起（21）与膜电极 组件（10）被设定为小于水相对于分离器（20A）的表面的接触角。 不管分离器的表面性质如何，形成在彼此接触的隔膜突起和膜电极组件之间的角部构造成使得水不可能保持或渗透。 因此，提高了气体通道的排水能力，提高了发电性能。

    Separator for fuel cell
    9.
    发明授权
    Separator for fuel cell 失效
    燃料电池分离器

    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。