abstract |
The purpose is to provide a novel aqueous electrolyte solution with which it is possible to build an aqueous electrical storage device having stable operation even at high voltage. This aqueous electrolyte solution for an electrical storage device includes water as a solvent, the electrolyte solution being characterized in that the amount of the solvent in the composition of the electrolyte solution is no more than 4 mol per 1 mol of an alkali metal salt. |