| 摘要 |
PROBLEM TO BE SOLVED: To achieve excellent charging/discharging efficiency in repeated charge/discharge by containing, into an electrolytic solution, an electrolyte, an organic solvent and an additive, which is selected from aminotriazole and its derivatives. SOLUTION: An electrolytic solution contains an electrolyte, an organic solvent and an additive. The additive contains at least one selected from aminotriazole and its derivatives. Examples of aminotriazole include 1- amino-1,2,4-triazole, 2-amino-1,2,4-triazole, 4-amino-1,2,4-triazole, 1-amino-1,2,3- triazole and 2-amino-1,2,3-triazole. The additive is added preferably by 0.01-10wt.% into the electrolytic solution, more preferably, by 0.5-3wt%. |
