| abstract |
The present invention relates to a lithium battery electrolyte and a lithium battery comprising the same, wherein the electrolyte is a non-aqueous organic solvent; Lithium salts; And an additive of Formula 1 below.n n n [Formula 1]n n n n n n n n (In Formula 1,n n n X is O or S,n n n Y 1 , Y 2 and Y 3 are the same or independently of each other O, S, CR 2 , NR, wherein R is H, halogen, an alkyl group having 8 or less carbon atoms, and the alkyl group may be linked in a ring or heterocyclic form. Can,n n n R a to R d are the same or independently of each other, an alkoxy group having 8 or less carbon atoms, halogen, H, or an unsaturated or saturated alkyl group having 8 or less carbon atoms, and adjacent R may be linked to each other in a ring or hetero form.)n n n The lithium battery including the electrolyte of the present invention is superior in battery safety, such as overcharging characteristics, compared to a battery using a conventional non-aqueous electrolyte.n n n n Electrolyte, Additive, Lithium Secondary Battery, Hetero |