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    Solid oxide fuel cells, a process for producing solid electrolyte films and a process for producing solid oxide fuel cells
    1.
    发明授权
    Solid oxide fuel cells, a process for producing solid electrolyte films and a process for producing solid oxide fuel cells 失效
    固体氧化物燃料电池，固体电解质膜的制造方法以及固体氧化物燃料电池的制造方法

    公开(公告)号：US5527633A

    公开(公告)日：1996-06-18

    申请号：US119690

    申请日：1993-09-13

    申请人： Shinji Kawasaki ,  Shigenori Ito ,  Katsuki Yoshioka

    发明人： Shinji Kawasaki ,  Shigenori Ito ,  Katsuki Yoshioka

    IPC分类号： C23C4/06 ,  C23C4/18 ,  H01M8/12 ,  H01M8/10

    CPC分类号： H01M8/124 ,  C23C4/06 ,  C23C4/18 ,  Y02P70/56

    摘要： A solid oxide fuel cell having an ion conductive solid electrolyte layer formed by a spraying method, wherein a thickness of the solid electrolyte layer is not less then 40 .mu.m and not more than 100 .mu.m, and a leakage amount of N.sub.2 gas of the solid electrolyte layer at room temperature is not more than 10.sup.-5 cc/g.second. A permeation coefficient of the solid electrolyte layer is preferably not more than 10.sup.-7 cm.sup.4 /g.second at room temperature. The solid electrolyte layer includes at least one metal element selected from manganese, iron, cobalt, nickel, copper and zinc, in an average amount of not less than 1 atom % and not more than 15 atom % based on a sum of amounts of all metal elements contained in the solid electrolyte layer.

    摘要翻译： 一种具有通过喷雾法形成的离子传导性固体电解质层的固体氧化物型燃料电池，其特征在于，固体电解质层的厚度为40μm以上且100μm以下，并且， 固体电解质层在室温下不超过10-5 cc / g。 固体电解质层的透过系数在室温下优选为10-7cm4 / g以下。 所述固体电解质层包含选自锰，铁，钴，镍，铜，锌中的至少一种金属元素，平均含量为1原子％以上15原子％以下 包含在固体电解质层中的金属元素。

    Solid electrolyte type fuel cell and method for producing the same
    3.
    发明授权
    Solid electrolyte type fuel cell and method for producing the same 失效
    固体电解质型燃料电池及其制造方法

    公开(公告)号：US5342703A

    公开(公告)日：1994-08-30

    申请号：US913490

    申请日：1992-07-15

    申请人： Shinji Kawasaki ,  Shigenori Ito ,  Katsuki Yoshioka

    发明人： Shinji Kawasaki ,  Shigenori Ito ,  Katsuki Yoshioka

    IPC分类号： H01M8/12

    CPC分类号： H01M4/9033 ,  H01M8/1253 ,  Y02E60/525 ,  Y02P70/56

    摘要： A solid electrolyte type fuel cell having decreased internal resistance and increased output and improved fuel utilization efficiency is provided. The fuel cell includes an air electrode substrate made of a perovskite series complexed oxide having the following composition of a formula (La.sub.1-y A.sub.y)MO.sub.3, wherein A is at least one element selected from alkaline earth metals, M is manganese or cobalt, and y is 0.ltoreq.y.ltoreq.0.4, a zirconia solid electrolyte film containing manganese or cobalt solid soluted at at least the neighborhood of the interface thereof with the air electrode substrate, and a fuel electrode film formed on the solid electrolyte film at a surface opposite to the air electrode substrate. The fuel cell does not include a highly resistive layer made of a compound containing lanthanum and zirconium at the interface between the air electrode substrate and the solid electrolyte film. Methods for producing the fuel cell are also disclosed.

    摘要翻译： 提供了具有降低的内阻和增加的输出并提高燃料利用效率的固体电解质型燃料电池。 燃料电池包括由具有下式（La1-yAy）MO3组成的钙钛矿型复合氧化物制成的空气电极基板，其中A为选自碱土金属，M为锰或钴的至少一种元素，y为锰 是0≤y≤0.4，含有锰或钴固体的氧化锆固体电解质膜至少在其与空气电极基板的界面附近溶解，在固体电解质膜上形成的燃料电极膜 表面与空气电极基板相对。 燃料电池不包括在空气电极基板和固体电解质膜之间的界面处由含有镧和锆的化合物制成的高电阻层。 还公开了制造燃料电池的方法。

    Fuel electrodes for solid oxide fuel cells and production thereof
    7.
    发明授权
    Fuel electrodes for solid oxide fuel cells and production thereof 失效
    用于固体氧化物燃料电池的燃料电极及其生产

    公开(公告)号：US5227258A

    公开(公告)日：1993-07-13

    申请号：US755577

    申请日：1991-09-05

    申请人： Shigenori Ito ,  Kiyoshi Okumura ,  Katsuki Yoshioka

    发明人： Shigenori Ito ,  Kiyoshi Okumura ,  Katsuki Yoshioka

    IPC分类号： H01M4/88 ,  H01M4/86 ,  H01M8/12

    CPC分类号： H01M4/9066 ,  H01M8/1213 ,  Y02P70/56

    摘要： A fuel electrode for solid oxide fuel cells, which is to be provided on a surface of an ion-conductive solid electrolyte body, includes a skeleton for a porous fuel electrode, and a thin filmy tissue which is composed of the same material as the solid electrolyte body, and covers the fuel electrode skeleton. Gaps are present between the thin filmy tissue and the fuel electrode skeleton. The skeleton is made of a material containing at least nickel. A process for producing fuel electrode includes the steps of: forming a porous film made of a porous skeleton containing at least nickel oxide onto a surface of an ion-conductive solid electrolyte body; covering a surface of the porous skeleton with a thin filmy tissue made of the said solid electrolyte material by impregnating the porous film with a solution of a metallic compound capable of producing the same solid electrolyte material as that of the solid electrolyte body; heating the porous film and decomposing the metallic compound; and forming a porous skeleton containing at least nickel by reducing the porous film, and forming gaps between the fuel electrode skeleton and the thin filmy tissue by a decrease in volume of the porous skeleton resulting from reduction of nickel oxide to nickel.

    Method for operating a power generator
    9.
    发明授权
    Method for operating a power generator 失效
    运行发电机的方法

    公开(公告)号：US5445902A

    公开(公告)日：1995-08-29

    申请号：US133872

    申请日：1993-10-12

    申请人： Takao Soma ,  Tomonori Takahashi ,  Shinji Kawasaki ,  Katsuki Yoshioka

    发明人： Takao Soma ,  Tomonori Takahashi ,  Shinji Kawasaki ,  Katsuki Yoshioka

    IPC分类号： H01M4/86 ,  H01M8/04 ,  H01M8/12 ,  H01M8/02

    CPC分类号： H01M8/04089 ,  H01M8/04007 ,  H01M8/1231 ,  Y10T29/49108

    摘要： A method for operating a power generator in which a solid oxide fuel cell is used as a power-generating element and an air electrode of the solid oxide fuel cell is composed of lanthanum manganite, the method involving the step of setting a heating rate and a cooling rate at least in a temperature range of 800.degree. C. to 900.degree. C. at not less than 3.degree. C./min. when the fuel cell is heated up to an operating temperature at the time of starting the power generator and when the fuel cell is cooled from the operating temperature at the time of stopping the power generator. Alternatively, the method involves the step of setting a partial pressure of oxygen, at least in a temperature range of 800.degree. C. to 900.degree. C., in an atmosphere to which the air electrode is exposed, to at not less than 10.sup.-15 arms but not more than 10.sup.-1 arms when the fuel cell is heated up to an operating temperature at the time of starting the power generator and when the fuel cell is cooled from the operating temperature at the time of stopping the power generator.

    摘要翻译： 一种使用固体氧化物型燃料电池作为发电元件的发电机的动作方法以及固体氧化物型燃料电池的空气电极，由亚锰酸镧构成，其特征在于，包括：设定加热速度和 冷却速度至少在800℃至900℃的温度范围内，不低于3℃/分钟。 当燃料电池在启动发电机时被加热到工作温度，并且当燃料电池从停止发电机时的工作温度冷却时。 或者，该方法包括在空气电极暴露的气氛中至少在800℃〜900℃的温度范围内设定氧分压至不小于10度的步骤， 当燃料电池被加热到启动发电机时的工作温度，并且当燃料电池从停止发电机时的工作温度冷却时，15臂但不大于10-1臂。

    Cell units for solid oxide fuel cells and power generators using such cell units
    10.
    发明授权
    Cell units for solid oxide fuel cells and power generators using such cell units 失效
    用于固体氧化物燃料电池的电池单元和使用这种电池单元的发电机

    公开(公告)号：US5292599A

    公开(公告)日：1994-03-08

    申请号：US948011

    申请日：1992-09-02

    申请人： Takao Soma ,  Shinji Kawasaki ,  Katsuki Yoshioka

    发明人： Takao Soma ,  Shinji Kawasaki ,  Katsuki Yoshioka

    IPC分类号： H01M8/02 ,  H01M8/04 ,  H01M8/12 ,  H01M8/24 ,  H01M8/10

    CPC分类号： H01M8/0258 ,  H01M8/0247 ,  H01M8/026 ,  H01M8/2425 ,  H01M8/243 ,  H01M2008/1293 ,  H01M2300/0074 ,  H01M8/0252 ,  H01M8/0271 ,  H01M8/04022

    摘要： A cell unit for use in a solid oxide fuel cell has a laminate structure including a cell element and a separator. The cell element includes a dense and planar solid electrolyte having a rectangular plane shape, and an air electrode film and a fuel electrode film provided on opposite surfaces of the flat solid electrolyte, respectively. The separator is made of a dense electron conductor. A plurality of oxidizing gas flow paths are defined between the separator and the air electrode, and the cell element has a rectangular planar shape and a ratio of a short side to a long side of the rectangular planar shape is not less than 2.

    摘要翻译： 用于固体氧化物燃料电池的电池单元具有包括电池元件和隔板的层压结构。 电池元件包括具有矩形平面形状的致密和平面的固体电解质，以及分别设置在扁平固体电解质的相对表面上的空气电极膜和燃料电极膜。 分离器由致密的电子导体制成。 在隔板和空气电极之间限定多个氧化气体流路，电池元件为矩形平面形状，矩形平面形状的短边与长边的比例不小于2。