| 摘要 |
PROBLEM TO BE SOLVED: To provide: an electrolytic solution for nonaqueous electrolyte battery which is arranged with use at a high temperature of 60°C or higher, and exhibits superior high-temperature cycle characteristic and high-temperature storage suitability; and a nonaqueous electrolyte lithium ion secondary battery arranged by use of such an electrolytic solution.SOLUTION: An electrolytic solution for a nonaqueous electrolyte lithium ion secondary battery comprises at least, a nonaqueous solvent, a solute and a combination of a first compound which is decomposed on a positive and negative electrodes, and thus forms a film with good ion conductivity on surfaces of the positive and negative electrodes, and a second compound which is decomposed on the positive and negative electrodes, and thus forms a film with good ion conductivity on the surfaces of the positive and negative electrodes.SELECTED DRAWING: None |
