申请人:Abe Koji
公开号:US20140030610A1
公开(公告)日:2014-01-30
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, R
1
and R
2
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; R
3
and R
4
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-L
3
-O—, —OC(═O)—C(═O)O—, or a single bond.)
本发明提供了一种非水电解质溶液,该溶液能够在高温下改善电化学特性,其中包括至少一种由以下一般式(I)表示的有机磷化合物,使用该非水电解质溶液的储能装置以及特定的有机磷化合物。(在公式中,R1和R2各自独立地表示烷基、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各自独立地表示氢原子、卤素原子或烷基;m为1到4的整数,n为0或1,q为1或2。当q为1且n为0时,X表示烷氧基、炔氧基、烷氧基烷氧基、芳氧基等;当q为1且n为1时,X表示烷基、炔基、烷氧基、炔氧基、烷氧基烷氧基等;当q为2时,X表示-O-L3-O-、-OC(═O)-C(═O)O-或单键。)