| 摘要 |
The present invention addresses the problem of providing a non-aqueous electrolyte solution and a non-aqueous electrolyte battery that: are able to demonstrate high output properties at low temperatures even when the battery has been used to a certain extent, are able to show favorable high rate properties at normal temperatures, and are able to demonstrate sufficient performance at low temperatures in the same manner after being stored at high temperatures. [Solution] The present invention is a non-aqueous electrolyte solution containing a non-aqueous solvent and an electrolyte dissolved in the non-aqueous solvent, wherein the non-aqueous electrolyte solution is characterized in that the non-aqueous electrolyte solution is used, the non-aqueous electrolyte solution containing a difluoroionic complex (1-Cis) having a cis-type steric conformation represented by general formula (1-Cis) and at least one compound selected from the group consisting of cyclic sulfonic acid esters, cyclic sulfonic acid esters having an unsaturated bond, cyclic sulfuric acid esters, cyclic disulfonic acid esters, chain disulfonic acid esters, cyclic disulfonic anhydrides, nitrile group-containing compounds, phosphoric acid silyl ester derivatives, and silyl borate ester derivatives. |
