Electrolyte solution for rechargeable lithium battery and rechargeable lithium battery including the same

An electrolyte solution comprising:

• a non-aqueous organic solvent;
• a lithium salt;
• a first additive represented by Formula 1;
• a second additive represented by Formula 2;
• and
• a third additive represented by Formula 3:
• wherein in Formulas 1 to 3,
• X is a halogen group or a C1 to C10 haloalkyl group,
• a is 1 or 2,
• if a is 1, then b is 2,
• if a is 2, then b is 0,
• L1 and L2 are each independently a single bond, a substituted or unsubstituted C1 to C5 alkylene group, a substituted or unsubstituted C2 to C5 alkenylene group, a substituted or unsubstituted C2 to C5 alkynylene group, or a substituted or unsubstituted C6 to C20 arylene group,
• R1 and R2 are each independently a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, or a substituted or unsubstituted C2 to C20 heteroaryl group, and
• at least one of R1 or R2 is a group represented by Formula A:
• wherein in Formula A,
• Ra and Rb are each independently hydrogen, a halogen group, a substituted or unsubstituted C1 to C10 alkyl group, or a substituted or unsubstituted C3 to C10 cycloalkyl group, and
• wherein the electrolyte solution is an electrolyte solution for a rechargeable lithium battery.