The present invention relates to a non-aqueous electrolyte solution characterized by containing at least one type of cyclic sulfonic acid ester compound represented by general formula (1). According to the present invention, a non-aqueous electrolyte solution capable of improving battery characteristics can be provided.
(In the formula, R1 to R4 are each independently a hydrogen atom, a fluorine atom, an alkyl group having 1-6 carbon atoms or an alkoxy group having 1-6 carbon atoms, and Z is a substituted or unsubstituted alkylene group having 1-6 carbon atoms, a substituted or unsubstituted fluoroalkylene group having 1-6 carbon atoms, or a divalent organic group having 2-6 carbon atoms in which alkylene unit(s) or fluoroalkylene unit(s) are bonded via one or more ether bonds.)
本发明涉及一种非
水电解质溶液,其特征是含有至少一种由通式(1)表示的环
磺酸酯化合物。根据本发明,可以提供一种能够改善电池特性的非
水电解质溶液。
(式中,R1 至 R4 各自独立地为氢原子、
氟原子、具有 1-6 个碳原子的烷基或具有 1-6 个碳原子的烷氧基,Z 为具有 1-6 个碳原子的取代或未取代的亚烷基、具有 1-6 个碳原子的取代或未取代的
氟亚烷基或具有 2-6 个碳原子的二价有机基团,其中亚烷基单元或
氟亚烷基单元通过一个或多个醚键键合)。