| 摘要 |
A non-aqueous liquid electrolyte for a secondary battery, containing: at least one selected from a carbonate compound having a halogen atom and a sulfur-containing ring compound; an aromatic ketone compound; an organic solvent; and an electrolyte salt, in which, with respect to 100 parts by mass of the organic solvent, the aromatic ketone compound is 0.001 to 10 parts by mass and the at least one selected from a carbonate compound having a halogen atom and a sulfur-containing ring compound is 0.001 to 10 parts by mass, and more than 50% by mass of the whole amount of the organic solvent is composed of a solvent with a melting point of 10° C. or less. |
