A fuel cell, electrode for the cell and method of preparation thereof
    1.
    发明公开
    A fuel cell, electrode for the cell and method of preparation thereof 失效
    Brennstoffzelle,Elektrodefürdie Zelle und Verfahren zur Herstellung。

    公开(公告)号:EP0327887A1

    公开(公告)日:1989-08-16

    申请号:EP89101274.2

    申请日:1989-01-25

    申请人: HITACHI, LTD.

    IPC分类号: H01M4/88 H01M8/14

    摘要: A molten carbonate-type fuel cell comprising two electrodes (1, 2) as anode and cathode, an electrolyte plate (3) and separators (4) in a single unit and a battery of the unit cells stacked. The electrodes (1, 2) comprise a porous plate (35) of an electron-­conducting material (11) such as nickel containing particles of ceramics such as magnesium oxide uniformly dispersed therein in an amount of 2 to 20 atomic %, except for the superficial thin portion (35') free of the ceramic particles on the one-side surface of the plate (35). The electrodes (1, 2) are prepared by mixing a powder (11) of the electron-conducting material with an organic binder (12) while stirring to obtain a slurry or paste (16), deaerating the slurry or paste (16) to remove entrained air bubbles therefrom, shaping the slurry or paste plate (35) with or without a metal wire net (20), drying the electrode plate (35) at room temperature and finally firing the plate (35) in a reducing atmosphere. Thereupon, applying a water repellant onto the one-side surface of said porous electrode plate, impregnating with a dispersion or solution of a ceramics-affording source, drying end prefiring the plate in an oxidizing atmosphere and finally firing the plate in a reducing atmosphere.

    摘要翻译: 一种熔融碳酸盐型燃料电池,其包括作为阳极和阴极的两个电极(1,2),单个单元中的电解质板(3)和隔板(4)以及堆叠的单位电池的电池。 电极(1,2)包括电子传导材料(11)的多孔板(35),例如含有均匀分散在其中的氧化镁等陶瓷颗粒的含镍颗粒,其量为2至20原子%,除了 在板(35)的单面表面上没有陶瓷颗粒的表面薄部分(35')。 电极(1,2)通过在搅拌下将导电材料的粉末(11)与有机粘合剂(12)混合以获得浆料或糊料(16),将浆料或糊料(16)脱气至 除去夹带的气泡,用或不用金属丝网(20)对浆料或糊板(35)进行成型,在室温下干燥电极板(35),最后在还原气氛下烧制板(35)。 然后,在所述多孔电极板的一侧表面上涂覆斥水剂,用陶瓷供给源的分散体或溶液浸渍,在氧化气氛中预浸渍板的干燥末端,最后在还原气氛中烧制板。