Potassium ion additives for voltage control and performance improvement
in nonaqueous cells
    1.
    发明授权
    Potassium ion additives for voltage control and performance improvement in nonaqueous cells 失效
    钾离子添加剂用于非水电池的电压控制和性能改进

    公开(公告)号:US5691083A

    公开(公告)日:1997-11-25

    申请号:US487370

    申请日:1995-06-07

    摘要: An electrochemical cell having a lithium or lithium alloy anode, a solid cathode, and a nonaqueous, liquid electrolyte, includes an amount of a potassium salt which is effective to lower the open circuit voltage of the cell without causing any significant detrimental effects such as corrosion of the anode or self discharge of the cell. More specifically, the electrolyte comprises one or more organic solvents, an electrochemically active amount of one or more primary salts, and more than about 0.001 mol/l of one or more potassium salt additives which achieve the desired open circuit voltage without any harmful effects on the cell. The potassium salt additives have also been found to enhance load voltage on the first 50% depth of discharge, indicating improved rate performance.

    摘要翻译: 具有锂或锂合金阳极,固体阴极和非水电解液的电化学电池包括一定量的钾盐,其有效降低电池的开路电压而不引起任何显着的有害影响,例如腐蚀 的阳极或电池的自放电。 更具体地说,电解质包含一种或多种有机溶剂,电化学活性量的一种或多种初级盐,以及大于约0.001mol / l的一种或多种钾盐添加剂,其实现所需的开路电压而没有任何有害影响 细胞。 还发现钾盐添加剂可以在第一个50%的放电深度上增强负载电压,从而提高速率性能。