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    Electrolyte and Lithium Ion Secondary Battery Including the Same
    2.
    发明公开
    Electrolyte and Lithium Ion Secondary Battery Including the Same 有权
    Elektrolyt und Lithiumion-Sekundärbatteriedamit

    公开(公告)号：EP2151882A1

    公开(公告)日：2010-02-10

    申请号：EP09166134.8

    申请日：2009-07-22

    申请人： Samsung SDI Co., Ltd.

    发明人： Choi, Namsoon ,  Profatilova, Irina ,  Hur, Sohyun ,  Song, Euihwan ,  Kim, Sungsoo

    IPC分类号： H01M10/42

    CPC分类号： H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/4235 ,  H01M2300/0045 ,  H01M2300/0091

    摘要： An electrolyte for a lithium ion secondary battery is provided. The electrolyte includes a non-aqueous organic solvent, a lithium salt, an ionic liquid and an additive. The additive has a lowest unoccupied molecular orbital (LUMO) level of -0.5 to 1.0 eV and a highest occupied molecular orbital (HOMO) level lower than -11.0 eV. Further provided is a lithium ion secondary battery including the electrolyte. The battery is advantageous in terms of overcharge safety and heat stability. In addition, the battery has improved high-efficiency properties and cycle life characteristics.

    摘要翻译： 提供了一种用于锂离子二次电池的电解质。 电解质包括非水有机溶剂，锂盐，离子液体和添加剂。 该添加剂具有-0.5至1.0eV的最低未占分子轨道（LUMO）水平和低于-11.0eV的最高占据分子轨道（HOMO）水平。 还提供了包括电解质的锂离子二次电池。 该电池在过充电安全性和热稳定性方面是有利的。 此外，电池具有改善的高效率特性和循环寿命特性。