Non-aqueous electrolyte for battery and non-aqueous electrolyte battery comprising the same

Abstract

This invention relates to a non-aqueous electrolyte for a battery having high flame retardance and capable of giving high heat resistance to a positive electrode material of a battery, and more particularly to a non-aqueous electrolyte for a battery characterized by comprising a non-aqueous solvent containing a cyclic phosphazene compound represented by the following general formula (I): (NPR2)n   (I) [wherein Rs are independently fluorine, an alkoxy group or an aryloxy group; and n is 3-4] and at least one methyl ester compound selected from the group consisting of methyl acetate, methyl propionate and methyl butyrate, and a support salt.

Dependencies are inferred from the claim text.