LITHIUM SECONDARY CELL
    5.
    发明公开
    LITHIUM SECONDARY CELL 审中-公开
    锂SEKUNDÄRZELLE

    公开(公告)号:EP1406338A4

    公开(公告)日:2007-07-04

    申请号:EP02733389

    申请日:2002-06-07

    摘要: A stable high-performance lithium secondary cell having a variable-shape case in which a cell element is contained and not bulging even though the shape of the case is variable and even if it is stored at high temperature. The lithium secondary cell comprising a cell element that includes a positive electrode, a negative electrode, and an electrolyte containing a nonaqueous solvent and a solute, and a variable-shape case containing the cell element is characterized in that DEadd(AN) is smaller than DEsol(AN) where DEsol(AN) is the difference Esol(A) - Esol(N) where Esol(N) is the enthalpy of the neutral molecular of the nonaqueous solvent determined by a predetermined calculation method and Esol(A) is the enthalpy of the anion radical produced by giving the neutral molecular one electron, and where DEadd(AN) is the difference Eadd(A) - Eadd(N) where Eadd(N) is the enthalpy of the neutral molecular of an additive α contained in the cell element determined by a predetermined calculation method and Eadd(A) is the enthalpy of the anion radical produced by giving the neutral molecular one electron.

    摘要翻译: 稳定的高性能锂二次电池具有包含电池元件的可变形壳体,并且即使壳体的形状可变并且即使其在高温下储存也不会鼓起。 包含具有正极,负极和含有非水溶剂和溶质的电解质的电池元件的锂二次电池以及包含该电池元件的可变形壳体的锂二次电池的特征在于,DEadd(AN)小于 DEsol(AN)其中DEsol(AN)是Esol(A) - Esol(N)的不同,其中Esol(N)是通过预定计算方法测定的非水溶剂中性分子的焓,Esol(A)是 (A) - Eadd(N)其中Eadd(N)是包含在中性分子中的添加剂α的中性分子的焓, 通过预定的计算方法确定的单元元素和Eadd(A)是通过赋予中性分子一个电子产生的阴离子自由基的焓。