Electrolyte Solution for Nonaqueous Electrolyte Batteries, and Nonaqueous Electrolyte Battery Using Same

An electrolyte solution for a nonaqueous electrolyte battery according to the present invention includes the following components: (I) a nonaqueous organic solvent; (II) an ionic salt as a solute; (III) at least one additive compound represented by the general formula (1); and (IV) at least one additive compound represented by the general formula (2), wherein the concentration of the component (IV) is 0.05 to 25.0 mass % with respect to 100 mass % of the component (III) where Rare each independently a substituent group having at least one kind selected from unsaturated bond and aromatic ring.