LIQUID ELECTROLYTES CONTAINING SALT MAKING ALKALI METAL, ALKALI-EARTH METAL OR ALUMINUM CATIONS, AND ORGANIC SOLVENT HAVING HETERO ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide preferred liquid electrolytes.SOLUTION: A liquid electrolyte comprises: a salt making alkali metal, alkali-earth metal or aluminum cations; and an organic solvent having a hetero element. The quotient d/c of the division of a density d(g/cm) of the liquid electrolyte by a concentration c(mol/L) of the salt in the liquid electrolyte satisfies the following condition: 0.15d/c0.71.