| 摘要 |
Provided are an organic electrolyte solution, and a lithium battery containing the organic electrolyte solution which is improved in charge/discharge efficiency and lifetime by inhibiting the reductive decomposition reaction of a polar solvent. The organic electrolyte solution comprises a lithium salt; an organic solvent which comprises a solvent having a high dielectric constant and a solvent having a low viscosity; and a compound represented by the formula 1, wherein X is O or S; n and m are independently an integer of 1-3; and R1, R2, R3 and R4 are independently H, a halogen atom, a hydroxyl group, a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C1-C20 alkoxy group, a substituted or unsubstituted C1-C20 alkenyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 aryloxy group, a substituted or unsubstituted C2-C30 heteroaryl group, or a substituted or unsubstituted C2-C30 heteroaryloxy group. |
