Electrolyte for secondary battery and secondary battery using same

摘要

An electrolyte for a secondary battery containing an aprotic solvent which contains at least imide anion, transition metal ion and a compound containing a sulfonyl group in an aprotic solvent 15 . The electrolyte has the performance such as the excellent energy density and electromotive force, and the secondary battery using the electrolyte is excellent in the cycle life and the safety.