| abstract |
An electrolyte for a lithium secondary battery including a lithium salt, a non-aqueous organic solvent, and a pyrrolidine derivative represented by Formula 1, n n n n n n n n n n wherein, in Formula 1, X is hydrogen, a formyl group or a salt thereof, a carboxyl group or a salt thereof, a C 1 -C 20 alkyl group, a C 1 -C 20 hydroxyalkyl group, a C 1 -C 20 aminoalkyl group, a C 1 -C 20 thioalkyl group, or a C 1 -C 20 cyanoalkyl group, and R 1 to R 4 are each independently hydrogen, deuterium, a halogen atom, a hydroxyl group, a thio group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine, a hydrazone, a formyl group or a salt thereof, a carboxyl group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid or a salt thereof, a C 1 -C 20 hydroxyalkyl group, a C 2 -C 20 heteroaryl group, or a C 6 -C 20 aryl group. |