The great expectation is placed on the application of rechargeable lithium battery in power batteries. However
the safety issue has been paid much more attention on the rechargeable battery. The electrolyte is one of the mainly problems. It associates with the properties of the electrolyte. Ionic liquids (ILs) have exhibited excellent properties
such as wide electrochemical window
high conductivity
high thermal stability
non-volatility etc. As the green solvent
the ILs have been paid more attention by the electrochemistry. It can be used for the substitutes of the traditional organic solvents because of the nonflammable ability. Therefore
ILs as a great promising electrolyte can be used in lithium ion batteries. In this review
the application of the new-type solvent “ionic liquid” was reviewed in rechargeable batteries. The materials of the cathode or anode are mainly include carbon