RECHARGEABLE LITHIUM BATTERY

A rechargeable lithium battery is provided. The rechargeable lithium battery includes a positive electrode active material; a negative electrode including a negative electrode active material; an electrolyte solution for a rechargeable lithium battery including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a first compound represented by Chemical Formula 1 and a second compound represented by Chemical Formula 2, and the positive electrode active material includes lithium nickel composite oxide represented by Chemical Formula 3.