Abstract: The great expectation has been placed on the application of Li-ion batteries in power batteries. However, the application has been hindered largely by the safety performance of Li-ion batteries which has close correlation with the properties of electrolytes. Ionic liquids with the properties of non-flammability, low-volatility and high-thermal-stability had been substituted for organic solvents as Li-ion battery electrolyte. In this review, the application of ionic liquids as Li-ion battery electrolyte is induced. It’s including the advantages/disadvantages of ionic liquids electrolyte and methods of improving electrochemical properties. Finally, the outlook for the further research is proposed.

Key words: ionic liquid;Li-ion battery, electrolyte, electrochemical property

摘要： 近年来锂离子电池在动力电池方面被寄予厚望，但安全性是制约其应用的关键之一，而其安全性与电解液性质密切相关。离子液体具有不可燃、不挥发、热稳定性好等优点，可作为电解液以替代传统有机溶剂应用于锂离子电池中。基于现有研究，本文阐述了各类离子液体作为锂离子电池电解液的优异性和不足点，进而综述了各种针对离子液体自身不足采取的性能改进方法，并对该方向的进一步研究进行了展望。

关键词: 离子液体, 锂离子电池, 电解液, 电化学性能