Patent ID: 7655361

Claim:
An electrolyte for a high voltage lithium rechargeable battery, comprising: a non-aqueous organic solvent; a lithium salt; and a halogenated biphenyl of the following chemical formula 1 and a dihalotoluene of the following chemical formula 2, which have an oxidation reduction potential with respect to lithium of 4.6 to 5.0 V, wherein: chemical formula 1 has the formula, (where, X is a halogen atom, and n is an integer 1 to 3,) chemical formula 2 has the formula, (where, X is a halogen atom, and m is an integer 2 to 4,) the compound of chemical formula 1 is 2-fluorobiphenyl, and the compound of chemical formula 2 is 2,5-dichlorotoluene.