Patent ID: 7217479

Claim:
A non-aqueous electrolyte solution comprising a lithium salt, an aprotic solvent and an organometallic compound represented by the following Chemical Formula 1: M(R 1 ) y (R 2 ) x-y-z (OH) z wherein R 1 and R 2 , which are coordinated with a central metal atom, are independently or simultaneously an alkyl group, an alkoxy group, a phenyl group, or a halogen-substituted phenyl group; M is an atom selected from the group consisting of Al, B, Ti, Nb, V, Cr, Mn, Fe, Co, Cu, Zn, Ni, Sn, Ga, Gd, Zr, and Ta; x is a valence of a central metal atom; y is a value satisfying 0<y<x; and z is a value satisfying 0<z<x.