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    • 6. 发明授权
    • Electrochemical cell
    • 电化学电池
    • US5536593A
    • 1996-07-16
    • US211554
    • 1994-12-05
    • Laszlo I. RedeyDonald R. VissersJai Prakash
    • Laszlo I. RedeyDonald R. VissersJai Prakash
    • H01M4/02H01M4/58H01M10/39H01M4/36
    • H01M4/02H01M10/39H01M4/582
    • An electrochemical cell having a bimodal positive electrode, a negative electrode of an alkali metal, and a compatible electrolyte including an alkali metal salt molten at the cell operating temperature. The positive electrode has an electrochemically active layer of at least one transition metal chloride at least partially present as a charging product, and additives of bromide and/or iodide and sulfur in the positive electrode or the electrolyte. Electrode volumetric capacity is in excess of 400 Ah/cm.sup.3 ; the cell can be 90% recharged in three hours and can operate at temperatures below 160.degree. C. There is also disclosed a method of reducing the operating temperature and improving the overall volumetric capacity of an electrochemical cell and for producing a positive electrode having a BET area greater than 6.times.10.sup.4 cm.sup.2 /g of Ni.
    • PCT No.PCT / US92 / 08599 Sec。 371日期1994年12月5日第 102(e)日期1994年12月5日PCT提交1992年10月8日PCT公布。 公开号WO93 / 07650 日期:1993年04月15日。具有双峰正电极,碱金属负极的电化学电池和在电池工作温度下熔融的碱金属盐的相容电解质。 正电极具有至少一种至少部分作为充电产物存在的至少一种过渡金属氯化物的电化学活性层,以及正极或电解质中的溴化物和/或碘化物和硫的添加剂。 电极体积容量超过400 Ah / cm3; 电池可以在三小时内充电90%,并且可以在低于160℃的温度下工作。还公开了一种降低电化学电池的工作温度和提高总体积容量的方法,并且制造具有BET 面积大于6×10 4 cm 2 / g的Ni。
    • 7. 发明授权
    • Electrochemical cell
    • 电化学电池
    • US5532078A
    • 1996-07-02
    • US312053
    • 1994-09-26
    • Laszlo I. RedeyKevin M. MylesDonald R. VissersJai Prakash
    • Laszlo I. RedeyKevin M. MylesDonald R. VissersJai Prakash
    • H01M4/02H01M4/58H01M10/39H01M6/20
    • H01M4/582H01M10/39H01M4/02
    • An electrochemical cell with a positive electrode having an electrochemically active layer of at least one transition metal chloride. A negative electrode of an alkali metal and a compatible electrolyte including an alkali metal salt molten at cell operating temperature is included in the cell. The electrolyte is present at least partially as a corrugated .beta." alumina tube surrounding the negative electrode interior to the positive electrode. The ratio of the volume of liquid electrolyte to the volume of the positive electrode is in the range of from about 0.1 to about 3. A plurality of stacked electrochemical cells is disclosed each having a positive electrode, a negative electrode of an alkali metal molten at cell operating temperature, and a compatible electrolyte. The electrolyte is at least partially present as a corrugated .beta." alumina sheet separating the negative electrode and interior to the positive electrodes. The alkali metal is retained in a porous electrically conductive ceramic, and seals for sealing the junctures of the electrolyte and the adjacent electrodes at the peripheries thereof.
    • 一种具有正电极的电化学电池,其具有至少一种过渡金属氯化物的电化学活性层。 在电池中包括碱金属的负极和包含在电池工作温度下熔融的碱金属盐的相容电解质。 电解质至少部分地存在于围绕正极的负极内部的波纹β“氧化铝管。 液体电解质的体积与正极的体积的比例在约0.1至约3的范围内。公开了多个层叠的电化学电池,其具有正极,碱金属的负极熔化在 电池工作温度和兼容的电解液。 电解质至少部分地以波纹状β“氧化铝片形式存在,将负极和内部分隔成正极。 碱金属保留在多孔导电陶瓷中,并且密封用于在其周边处密封电解质和相邻电极的接合处。