| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel ionic liquid to provide an electrolyte excellent in electroconductivity, excellent in safety and useful for a lithium secondary battery, and to provide an electrolyte and a lithium secondary battery prepared by using the same.SOLUTION: There are provided: an ionic liquid (A) having a cyanomethanesulfonate anion; an electrolyte containing the ionic liquid having the cyanomethanesulfonate anion and an electrolytic salt (B); and a lithium secondary battery using the electrolyte. |
