Low- contact-resistance interface structure between separator and carbon material for fuel cell, separator and carbon material used therein, and production method for stainless steel separator for fuel cell
    1.
    发明申请
    Low- contact-resistance interface structure between separator and carbon material for fuel cell, separator and carbon material used therein, and production method for stainless steel separator for fuel cell 审中-公开
    用于燃料电池,分离器和碳材料的分离器和碳材料之间的低接触电阻界面结构,以及用于燃料电池的不锈钢分离器的生产方法

    公开(公告)号:US20060147784A1

    公开(公告)日:2006-07-06

    申请号:US11367975

    申请日:2006-03-03

    IPC分类号: H01M8/02 B32B15/04 B05D5/12

    摘要: A low-contact-resistance interface structure between a separator and a carbon material for a fuel cell, a carbon material and a separator used in the interface structure, and a method for producing a stainless steel separator for a fuel cell are provided. The low-contact-resistance interface structure may contain a titanium nitride layer 0.1 to 200 μm in thickness between the stainless steel separator and the carbon material contacting therewith. Further, in the method for producing a stainless steel separator that is incorporated in the above interface structure for a fuel cell, a titanium nitride layer 0.1 to 200 μm in thickness is formed on one or both surfaces of a stainless steel containing, in mass, C: 0.0005% to 0.03%, Si: 0.01% to 2%, Mn: 0.01% to 2.5%, S: 0.01% or less, P: 0.03% or less, Cr: 13 to 30%, Ti: 0.05 to 5%, with the balance consisting of Fe and unavoidable impurities. Such formation can be effectuated by applying a nitriding treatment to the stainless steel, in an atmosphere gas containing nitrogen, after the stainless steel is formed into a predetermined shape.

    摘要翻译: 提供了用于燃料电池,碳材料和界面结构中使用的隔膜的隔板和碳材料之间的低接触电阻界面结构以及用于制造燃料电池用不锈钢隔板的方法。 低接触电阻界面结构可以在不锈钢分离器和与其接触的碳材料之间包含厚度为0.1至200μm的氮化钛层。 此外,在上述燃料电池用界面结构体的不锈钢隔板的制造方法中,在不锈钢的一面或两面形成有0.1〜200μm厚的氮化钛层, C:0.0005〜0.03%,Si:0.01〜2%,Mn:0.01〜2.5%,S:0.01%以下,P:0.03%以下,Cr:13〜30%,Ti:0.05〜5 %,余量由Fe和不可避免的杂质组成。 这种形成可以通过在不锈钢形成预定形状之后,在含有氮的气氛气体中对不锈钢进行氮化处理来实现。

    Solid polymer type fuel cell separator and method of production of same
    3.
    发明授权
    Solid polymer type fuel cell separator and method of production of same 有权
    固体聚合物型燃料电池隔板及其制造方法

    公开(公告)号:US08361676B2

    公开(公告)日:2013-01-29

    申请号:US13227423

    申请日:2011-09-07

    IPC分类号: H01M8/04

    摘要: The present invention provides a method of production of a separator for a solid polymer type fuel cell characterized by shaping a substrate comprised of stainless steel, titanium, or a titanium alloy and then spraying the substrate surface with superhard core particles comprised of conductive compound particles of an average particle size of 0.01 to 20 μm mixed with a coating material and coated on their surfaces under conditions of a spray pressure of 0.4 MPa or less and a spray amount per cm2 of the substrate of 10 to 100 g in blast treatment. The ratio of the conductive compound to the mass of the core particles is 0.5 to 15 mass %.

    摘要翻译: 本发明提供了一种固体聚合物型燃料电池用隔膜的制造方法,其特征在于,对由不锈钢,钛或钛合金构成的基材进行成形,然后将由超导体芯粒子 与喷涂处理相比,在喷涂压力为0.4MPa以下,喷涂量为10〜100g的条件下,与涂料混合,平均粒径为0.01〜20μm,涂布于表面。 导电性化合物与芯粒的质量的比率为0.5〜15质量%。

    Titanium material for solid polymer fuel cell separator having low contact resistance and method of production of same
    4.
    发明授权
    Titanium material for solid polymer fuel cell separator having low contact resistance and method of production of same 有权
    具有低接触电阻的固体聚合物燃料电池隔板用钛材料及其制造方法

    公开(公告)号:US08603268B2

    公开(公告)日:2013-12-10

    申请号:US12998214

    申请日:2009-07-30

    IPC分类号: C22F1/18 H01M8/10

    摘要: A titanium material for a solid polymer fuel cell separator having a low contact resistance and a method of production of the same, the titanium material having at its surface a surface layer structure in which particles of a Ti compound containing either C or N are dispersed, the particles of Ti compound being covered by titanium oxide and/or metal Ti, characterized in that, when analyzed from the surface by XPS, a Ti2p spectrum of TiO2 is detected, further, at a Ti2p spectral energy range of TiO and/or a Ti2p spectral energy range of metal Ti, a Ti maximum detection peak height is at least 3 times the standard deviations of the background at the respective spectral energy ranges, and at a C1s spectral energy range and N1s spectral energy range, a maximum detection peak height is less than 3 times the standard deviations of the background at the respective spectral energy ranges of C1s and N1s, are provided.

    摘要翻译: 一种具有低接触电阻的固体高分子型燃料电池用隔板用钛材料及其制造方法,所述钛材料的表面具有分散有C或N的Ti化合物的粒子的表面层结构, Ti化合物的颗粒被氧化钛和/或金属Ti覆盖,其特征在于,当通过XPS从表面分析时,检测TiO 2的TiO 2光谱,此外,在TiO 2的TiO 2光谱能量范围和/或 金属Ti的Ti2p光谱能量范围,Ti最大检测峰高度为相应光谱能量范围内背景的标准偏差的至少3倍,在C1s光谱能量范围和N1s光谱能量范围内,最大检测峰高度 在C1s和N1s的相应光谱能量范围内的背景的标准偏差小于3倍。

    Solid polymer type fuel cell separator and method of production of same
    5.
    发明授权
    Solid polymer type fuel cell separator and method of production of same 有权
    固体聚合物型燃料电池隔板及其制造方法

    公开(公告)号:US08182961B2

    公开(公告)日:2012-05-22

    申请号:US12224429

    申请日:2007-02-27

    IPC分类号: H01M8/04

    摘要: The present invention provides a separator for a solid polymer type fuel cell superior in low contact resistance of the fuel cell separator surface with carbon paper and flatness and a method of production of the same, that is, a separator for a solid polymer type fuel cell comprising a substrate of stainless steel or titanium or a titanium alloy having a surface layer part on which conductive compound particles are fixed, wherein said conductive compound particles are comprised of one or more types of metal borides, metal carbides, and metal nitrides with an average particle size of 0.01 to 20 μm, said conductive compound particles are present in a region from said substrate surface to a depth of 10 μm, and a distribution of concentration of the metal element forming the conductive compound in said region satisfies relations between a concentration C of the metal element forming the conductive compound and a depth x from the substrate surface shown by equation (C=A·exp(−x/t)+B) and equation (10≦A≦90, −4.0≦B≦1.0, 0.5≦t≦4.0).

    摘要翻译: 本发明提供了一种固体聚合物型燃料电池用隔膜,其特征在于,具有碳纸和平坦度的燃料电池隔板表面的低接触电阻优良的固体聚合物型燃料电池及其制造方法,即固体聚合物型燃料电池用隔板 包括不锈钢或钛的基板或具有固定有导电化合物颗粒的表面层部分的钛合金,其中所述导电化合物颗粒由一种或多种金属硼化物,金属碳化物和金属氮化物组成,平均 所述导电化合物颗粒存在于从所述基板表面到10μm深度的区域中,并且在所述区域中形成导电化合物的金属元素的浓度分布满足浓度C 形成导电化合物的金属元素和由式(1)表示的衬底表面的深度x(C = A·exp(-x / t)+ B)和等式<2>(10&nlE; A&nlE; 90,-4.0&nlE; B&nlE; 1.0,0.5&nlE; t&nlE; 4.0)。

    Titanium material for solid polymer fuel cell separator having low contact resistance and method of production of same
    6.
    发明申请
    Titanium material for solid polymer fuel cell separator having low contact resistance and method of production of same 有权
    具有低接触电阻的固体聚合物燃料电池隔板用钛材料及其制造方法

    公开(公告)号:US20110177430A1

    公开(公告)日:2011-07-21

    申请号:US12998214

    申请日:2009-07-30

    摘要: A titanium material for a solid polymer fuel cell separator having a low contact resistance and a method of production of the same, the titanium material having at its surface a surface layer structure in which particles of a Ti compound containing either C or N are dispersed, the particles of Ti compound being covered by titanium oxide and/or metal Ti, characterized in that, when analyzed from the surface by XPS, a Ti2p spectrum of TiO2 is detected, further, at a Ti2p spectral energy range of TiO and/or a Ti2p spectral energy range of metal Ti, a Ti maximum detection peak height is at least 3 times the standard deviations of the background at the respective spectral energy ranges, and at a C1s spectral energy range and N1s spectral energy range, a maximum detection peak height is less than 3 times the standard deviations of the background at the respective spectral energy ranges of C1s and N1s, are provided.

    摘要翻译: 一种具有低接触电阻的固体高分子型燃料电池用隔板用钛材料及其制造方法,所述钛材料的表面具有分散有C或N的Ti化合物的粒子的表面层结构, Ti化合物的颗粒被氧化钛和/或金属Ti覆盖,其特征在于,当通过XPS从表面分析时,检测TiO 2的TiO 2光谱,此外,在TiO 2的TiO 2光谱能量范围和/或 金属Ti的Ti2p光谱能量范围,Ti最大检测峰高度为相应光谱能量范围内背景的标准偏差的至少3倍,在C1s光谱能量范围和N1s光谱能量范围内,最大检测峰高度 在C1s和N1s的相应光谱能量范围内的背景的标准偏差小于3倍。

    SOLID POLYMER TYPE FUEL CELL SEPARATOR AND METHOD OF PRODUCTION OF SAME
    9.
    发明申请
    SOLID POLYMER TYPE FUEL CELL SEPARATOR AND METHOD OF PRODUCTION OF SAME 有权
    固体聚合物型燃料电池分离器及其制造方法

    公开(公告)号:US20120034372A1

    公开(公告)日:2012-02-09

    申请号:US13227423

    申请日:2011-09-07

    IPC分类号: H01M2/16

    摘要: The present invention provides a method of production of a separator for a solid polymer type fuel cell characterized by shaping a substrate comprised of stainless steel, titanium, or a titanium alloy and then spraying the substrate surface with superhard core particles comprised of conductive compound particles of an average particle size of 0.01 to 20 μm mixed with a coating material and coated on their surfaces under conditions of a spray pressure of 0.4 MPa or less and a spray amount per cm2 of the substrate of 10 to 100 g in blast treatment. The ratio of the conductive compound to the mass of the core particles is 0.5 to 15 mass %.

    摘要翻译: 本发明提供了一种固体聚合物型燃料电池用隔膜的制造方法,其特征在于,对由不锈钢,钛或钛合金构成的基材进行成形,然后将由超导体芯粒子 与喷涂处理相比,在喷涂压力为0.4MPa以下,喷涂量为10〜100g的条件下,与涂料混合,平均粒径为0.01〜20μm,涂布于表面。 导电性化合物与芯粒的质量的比率为0.5〜15质量%。

    POLYMER ELECTROLYTE FUEL CELL SEPARATOR MADE OF PURE TITANIUM OR TITANIUM ALLOY AND METHOD OF PRODUCTION OF SAME
    10.
    发明申请
    POLYMER ELECTROLYTE FUEL CELL SEPARATOR MADE OF PURE TITANIUM OR TITANIUM ALLOY AND METHOD OF PRODUCTION OF SAME 有权
    纯钛或钛合金的聚合物电解质燃料电池分离器及其制造方法

    公开(公告)号:US20090197143A1

    公开(公告)日:2009-08-06

    申请号:US12304722

    申请日:2007-06-15

    IPC分类号: H01M2/02 B05D5/12

    摘要: The present invention provides a polymer electrolyte fuel cell separator made of pure titanium or a titanium alloy superior in contact resistance with carbon paper and a method of production of the same, that is, a separator having a surface layer part to which conductive compound particles are affixed, characterized in that the surface oxide has a thickness of 3 to 15 nm in range, an average carbon concentration in a range from an outermost surface, including the oxide layer, to a depth of 100 nm is 0.02 to 6 at %, and the conductive compound particles have an average particle size of 0.01 to 20 μm. Further, the method of production of the present invention is characterized by forming, blast treating a surface of the formed article by particles comprised of conductive compound particles of an average particle size of 0.01 to 20 μm covering a surface of superhard core particles, impregnating it by a nitric acid aqueous solution of a concentration of 15 to 71 mass % and a temperature of 40 to 100° C. for 30 seconds to 180 minutes by spraying or dipping, then washing it.

    摘要翻译: 本发明提供一种由碳钛纸或其制造方法制成的纯钛或钛合金制成的高分子电解质型燃料电池隔板及其制造方法,即具有导电性化合物粒子的表层部的隔膜 其特征在于,表面氧化物的范围为3〜15nm的厚度,从包括氧化物层的最外表面到100nm的深度的范围内的平均碳浓度为0.02〜6原子%, 导电性化合物粒子的平均粒径为0.01〜20μm。 此外,本发明的制造方法的特征在于,通过由平均粒径为0.01〜20μm的导电性化合物粒子构成的粒子对由成形体的表面进行喷砂处理,覆盖超硬核粒子的表面,浸渍 通过喷雾或浸渍,浓度为15〜71质量%,温度为40〜100℃的硝酸水溶液30秒〜180分钟,然后进行洗涤。