NON-AQUEOUS ELECTROLYTIC SOLUTION, ELECTROCHEMICAL ELEMENT USING SAME, AND ALKYNYL COMPOUND USED THEREFOR
申请人:Ube Industries, Ltd.
公开号:EP2533344A1
公开(公告)日:2012-12-12
The present invention provides an excellent nonaqueous electrolytic solution capable of improving low-temperature and high-temperature cycle properties and load characteristics after high-temperature charging storage, an electrochemical element using it, and an alkynyl compound used for it.
The nonaqueous electrolytic solution of the present invention comprises containing at least one alkynyl compound represented by the following general formula (I) in an amount of from 0.01 to 10% by mass in the nonaqueous electrolytic solution.
R1(O)n-X1-R2 (I)
(In the formula, X1 represents a group -C(=O)-, a group -C(=O)-C(=O)-, a group -S(=O)2-, a group -P(=O)(-R3)-, or a group -X3-S(=O)2O-. R1 represents an alkenyl group, a formyl group, an alkyl group, an acyl group, an arylcarbonyl, an alkanesulfonyl group, an alkynyloxysulfonyl group, an arylsulfonyl group, a dialkylphosphoryl group, an alkyl (alkoxy) phosphoryl group, or a dialkoxyphosphoryl group; R2 represents an alkynyl group or an alkynyloxy group; R3 represents an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an alkoxy group, an alkenyloxy group, an alkynyloxy group, or an aryloxy group; n indicates 0 of 1.
本发明提供了一种能够改善低温和高温循环特性以及高温充电储存后负载特性的优良非
水基电解溶液、使用该溶液的电
化学元件以及用于该溶液的炔基化合物。
本发明的非
水电解溶液包括在非
水电解溶液中含有至少一种由以下通式(I)表示的炔基化合物,其含量为 0.01 至 10%(按质量计)。
R1(O)n-X1-R2 (I)
(式中,X1 代表基团-C(=O)-、基团-C(=O)-C(=O)-、基团-S(=O)2-、基团-P(=O)(-R3)-或基团-X3-S(=O)2O-。R1 代表
烯基、甲酰基、烷基、酰基、芳基羰基、烷基磺酰基、炔
氧磺酰基、芳基磺酰基、二烷基
磷酰基、烷基(烷
氧基)
磷酰基或二烷
氧基
磷酰基;R2 代表炔基或炔
氧基; R3 代表烷基、
烯基、炔基、芳基、烷
氧基、
烯氧基、炔
氧基或芳
氧基; n 表示 0 或 1。