RECHARGEABLE LITHIUM BATTERY

Provided is a rechargeable lithium battery including a positive electrode including a positive active material; a negative electrode including a negative active material; and an electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a compound represented by Chemical Formula 1, and the positive active material includes at least one of lithium composite oxides represented by Chemical Formula 3. [0002] Details of Chemical Formulas 1 and 3 are as described in the specification.