| abstract |
A high-voltage electrolytic solution that has high thermal stability and can be used in an ordinary vehicle-mounted secondary battery, and a secondary battery using the electrolytic solution. According to the present invention, there is provided an electrolytic solution used for a secondary battery including a positive electrode and a negative electrode that occlude and desorb alkali metal ions and an electrolytic solution, wherein only glyme is used as a solvent of the electrolytic solution, and the electrolytic solution. And an alkali metal salt as a solute, and at least a part of the glyme and the alkali metal salt forms a complex. [Selection] Figure 5 |