NON-AQUEOUS ELECTROLYTIC SOLUTION, ELECTRICAL STORAGE DEVICE UTILIZING SAME, AND CYCLIC SULFONIC ACID ESTER COMPOUND
申请人:Ube Industries, Ltd.
公开号:EP2704246A1
公开(公告)日:2014-03-05
An object of the present invention is to provide a nonaqueous electrolytic solution capable of improving electrochemical characteristics in a broad temperature range, an energy storage device using it.
A nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, which comprises at least one cyclic sulfonic acid ester compound represented by the following general formula (I), and an energy storage device.
(wherein R1 and R2 may be the same or different, each representing a hydrogen atom, an alkyl group in which at least one hydrogen atom may be substituted with a halogen atom, or a halogen atom; L represents a divalent hydrocarbon group of an alkylene group in which at least one hydrogen atom is substituted with OR3, or a divalent hydrocarbon group of an alkylene group in which at least one methylene (CH2) is substituted with C(=O); R3 represents a formyl group, an alkylcarbonyl group, an alkenylcarbonyl group, an alkenylcarbonyl group, an arylcarbonyl group, an alkoxycarbonyl group, an alkenyloxycarbonyl group, an alkynyloxycarbonyl group, an aryloxycarbonyl group, a 2,2-dioxide-1,2-oxathiolan-4-yloxycarbonyl group, a 2,2-dioxide-1,2-oxathian-4-yloxycarbonyl group, an alkanesulfonyl group, an arylsulfonyl group, a dialkylphosphoryl group, an alkoxy(alkyl)phosphoryl group, a dialkoxyphosphoryl group, -S(O)-OR4, or -C(O)CH2P(O)(OR5)2; R4 represents an alkyl group, a 2,2-dioxide-1,2-oxathiolan-4-yl group, or a 2,2-dioxide-1,2-oxathian-4-yl group; R5 represents an alkyl group; further, in R3, at least one hydrogen atom may be substituted with a halogen atom, and L may be further substituted with any of an alkyl group, a haloalkyl group or a halogen atom).
本发明的目的是提供一种能够在宽温度范围内改善电化学特性的非水性电解溶液,以及使用该溶液的储能装置。
一种溶解在非水溶剂中的电解质盐的非水性电解溶液,它包含至少一种由以下通式(I)表示的环磺酸酯化合物,以及一种储能装置。
(其中 R1 和 R2 可以相同或不同,各自代表氢原子、其中至少一个氢原子可被卤素原子取代的烷基或卤素原子;L 代表其中至少一个氢原子被 OR3 取代的亚烷基的二价烃基,或其中至少一个亚甲基 (CH2) 被 C(=O) 取代的亚烷基的二价烃基;R3 代表甲酰基、烷基羰基、烯基羰基、芳基羰基、烷氧基羰基、烯氧基羰基、炔氧基羰基、芳氧基羰基、2,2-二氧-1、2-氧硫杂环戊-4-基氧基羰基、2,2-二氧-1,2-氧硫杂环戊-4-基氧基羰基、烷基磺酰基、芳基磺酰基、二烷基磷酰基、烷氧基(烷基)磷酰基、二烷氧基磷酰基、-S(O)-OR4 或 -C(O)CH2P(O)(OR5)2;R4 代表烷基、2,2-二氧代-1,2-氧硫杂环戊-4-基或 2,2-二氧代-1,2-氧硫杂环戊-4-基;R5 代表烷基;此外,在 R3 中,至少一个氢原子可被卤素原子取代,L 可进一步被烷基、卤代烷基或卤素原子中的任何一个取代。)