Jade for a secondary battery electrolyte and a non-aqueous electrolyte secondary battery with it

摘要

PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte for a battery having high flame retardant properties, and to provide a nonaqueous electrolyte battery that has the nonaqueous electrolyte for a battery and improved battery performance.;SOLUTION: The nonaqueous electrolyte for batteries contains a difluorophosphoric acid ester compound in a specific structure at least by 10 vol.% and also contains an unsaturated annular ester compound in a specific structure and/or an aromatic compound in a specific structure in the nonaqueous electrolyte for a battery containing a nonaqueous solvent and a support electrolyte. The nonaqueous electrolyte battery has the nonaqueous electrolyte for a battery, a positive electrode, and a negative electrode.;COPYRIGHT: (C)2006,JPO&NCIPI