Patent ID: 8906559

Claim:
An electrolyte for a rechargeable lithium battery, comprising: a non-aqueous organic solvent; a lithium salt; and an additive including vinylene carbonate, fluoroethylene carbonate, and a nitrile-based compound selected from the group consisting of succinonitrile, glutaronitrile, adiponitrile, pimelonitrile, suberonitrile, and combinations thereof, wherein the vinylene carbonate is present at an amount of 0.01 to 9 wt % based on the total weight of the electrolyte, wherein the fluoroethylene carbonate is present at an amount of 0.1 to 7 wt % based on total weight of the electrolyte, and wherein the nitrile-based compound is present at an amount of 0.005 to 10 wt % based on the total weight of the electrolyte.