Bipolar battery with array of sealed cells
    1.
    发明授权
    Bipolar battery with array of sealed cells 失效
    具有密封电池阵列的双极电池

    公开(公告)号:US4687717A

    公开(公告)日:1987-08-18

    申请号:US883216

    申请日:1986-07-08

    IPC分类号: H01M6/48 H01M10/39

    CPC分类号: H01M6/48 H01M10/399

    摘要: A lithium alloy/metal sulfide battery as a dipolar battery is disclosed with an array of stacked cells with the anode and cathode electrode materials in each cell sealed in a confining structure and separated from one another except across separator material interposed therebetween. The separator material is contained in a module having separate perforated metallic sheets that sandwich opposite sides of the separator material for the cell and an annular insulating spacer that surrounds the separator material beyond the perforations and is also sandwiched between and sealed to the sheets. The peripheral edges of the sheets project outwardly beyond the spacer, traverse the side edges of the adjacent electrode material to form cup-like electrode holders, and are fused to the adjacent current collector or end face members of the array. Electrolyte is infused into the electrolyte cavity through the perforations of one of the metallic sheets with the perforations also functioning to allow ionic conductance across the separator material between the adjacent electrodes. A gas-tight housing provides an enclosure of the array.

    摘要翻译: 公开了一种作为双极电池的锂合金/金属硫化物电池,其具有堆叠单元阵列,每个单元中的阳极和阴极电极材料密封在约束结构中,并且彼此分离,除了夹在其间的隔板材料。 分离器材料包含在具有分隔开的金属板的模块中,该多孔金属板夹着用于电池的隔板材料的相对侧,以及围绕隔板材料超过穿孔的环形绝缘间隔件,并且也被夹在并密封到片材之间。 片材的外围边缘向外突出超过间隔物,横穿相邻电极材料的侧边缘以形成杯形电极保持器,并且熔合到阵列的相邻集电器或端面构件。 电解质通过金属片之一的穿孔输入到电解质腔中,穿孔也用于允许穿过相邻电极之间的隔板材料的离子电导。 气密的外壳提供阵列的外壳。

    Corrosion resistant positive electrode for high-temperature, secondary
electrochemical cell
    2.
    发明授权
    Corrosion resistant positive electrode for high-temperature, secondary electrochemical cell 失效
    耐腐蚀正极用于高温二次电化学电池

    公开(公告)号:US4401714A

    公开(公告)日:1983-08-30

    申请号:US395872

    申请日:1982-07-07

    IPC分类号: H01M4/58 H01M4/66 H01M10/39

    摘要: The corrosion rate of low carbon steel within a positive electrode of a high-temperature, secondary electrochemical cell that includes FeS as active material is substantially reduced by incorporating therein finely divided iron powder in stoichiometric excess to the amount required to form FeS in the fully charged electrode. The cell typically includes an alkali metal or alkaline earth metal as negative electrode active material and a molten metal halide salt as electrolyte. The excess iron permits use of inexpensive carbon steel alloys that are substantially free of the costly corrosion resistant elements chromium, nickel and molybdenum while avoiding shorten cell life resulting from high corrosion rates.

    摘要翻译: 包含FeS作为活性物质的高温二次电化学电池正极内的低碳钢的腐蚀速率通过将其中细粉碎的铁粉以化学计量过量的Fe粉末中所形成的FeB量完全充电 电极。 电池通常包括作为负极活性材料的碱金属或碱土金属和作为电解质的熔融金属卤化物盐。 多余的铁允许使用廉价的碳钢合金,其基本上不含昂贵的耐腐蚀元素铬,镍和钼,同时避免由于高腐蚀速率导致的电池寿命缩短。

    Method for uniformly distributing carbon flakes in a positive electrode,
the electrode made thereby and compositions
    3.
    发明授权
    Method for uniformly distributing carbon flakes in a positive electrode, the electrode made thereby and compositions 失效
    在正极中均匀分布碳薄片的方法,由此制成的电极和组合物

    公开(公告)号:US4367159A

    公开(公告)日:1983-01-04

    申请号:US206234

    申请日:1981-01-19

    摘要: A positive electrode for a secondary electrochemical cell wherein an electrically conductive current collector is in electrical contact with a particulate mixture of gray cast iron and an alkali metal sulfide and an electrolyte including alkali metal halides or alkaline earth metal halides. Also present may be a transition metal sulfide and graphite flakes from the conversion of gray cast iron to iron sulfide. Also disclosed is a method of distributing carbon flakes in a cell wherein there is formed an electrochemical cell of a positive electrode structure of the type described and a suitable electrolyte and a second electrode containing a material capable of alloying with alkali metal ions. The cell is connected to a source of electrical potential to electrochemically convert gray cast iron to an iron sulfide and uniformly to distribute carbon flakes formerly in the gray cast iron throughout the positive electrode while forming an alkali metal alloy in the negative electrode. Also disclosed are compositions useful in preparing positive electrodes.

    摘要翻译: 用于二次电化学电池的正极,其中导电集电体与灰铸铁和碱金属硫化物的微粒混合物以及包含碱金属卤化物或碱土金属卤化物的电解质电接触。 还可能存在过渡金属硫化物和从灰铸铁转化为硫化铁的石墨片。 还公开了一种在电池中分配碳薄片的方法,其中形成所述类型的正电极结构的电化学电池和合适的电解质和含有能够与碱金属离子合金化的材料的第二电极。 电池连接到电位源,以电化学方式将灰铸铁转化为铁硫化物,并均匀地分布在整个正电极中,原样分布在灰铸铁中的碳片,同时在负极中形成碱金属合金。 还公开了可用于制备正极的组合物。