Electrolyte and Lithium Ion Secondary Battery Including the Same
    4.
    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

    IPC分类号: H01M10/42

    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。