申请人:Ube Industries, Ltd.
公开号:EP2698859A1
公开(公告)日:2014-02-19
The present invention provides a nonaqueous electrolytic solution capable of improving electrochemical characteristics at high temperatures, which comprises at least one organic phosphorus compound represented by the following general formula (I), an energy storage device using the nonaqueous electrolytic solution, and a specific organic phosphorus compound.
(In the formula, R1 and R2 each independently represent an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an alkoxy group, a cycloalkoxy group, an alkenyloxy group, an alkynyloxy group, a halogenoalkyl group, a halogenoalkoxy group, an aryl group, or an aryloxy group; R3 and R4 each independently represent a hydrogen atom, a halogen atom, or an alkyl group; m is an integer of from 1 to 4, n is 0 or 1, q is 1 or 2. When q is 1 and n is 0, X represents an alkoxy group, an alkynyloxy group, an alkyloxyalkoxy group, an aryloxy group, etc.; when q is 1 and n is 1, X represents an alkyl group, an alkynyl group, an alkoxy group, an alkynyloxy group, an alkyloxyalkoxy group, etc.; and when q is 2, X represents -O-L3-O-, -OC(=O)-C(=O)O-, or a single bond.)
本发明提供了一种能够在高温下改善电化学特性的非水性电解溶液,其中包含至少一种由以下通式(I)表示的有机磷化合物、一种使用该非水性电解溶液的储能装置以及一种特定的有机磷化合物。
(式中:R1 和 R2 各自独立地代表烷基、环烷基、烯基、炔基、烷氧基、环烷氧基、烯氧基、炔氧基、卤代烷基、卤代烷氧基、芳基或芳氧基;R3 和 R4 各自独立地代表氢原子、卤素原子或烷基;m 为 1 至 4 的整数,n 为 0 或 1,q 为 1 或 2。当 q 为 1 且 n 为 0 时,X 代表烷氧基、炔氧基、烷氧基烷氧基、芳氧基等;当 q 为 1 且 n 为 1 时,X 代表烷基、炔基、烷氧基、炔氧基、烷氧基烷氧基等;当 q 为 2 时,X 代表-O-L3-O-、-OC(=O)-C(=O)O-或单键)。