申请人:WAKO PURE CHEMICAL INDUSTRIES, LTD.
公开号:US20150364792A1
公开(公告)日:2015-12-17
It is an object of the present invention to provide an electrochemical device having an electrolytic solution having high current density, as well as high safety, where dissolution and deposition of magnesium progress repeatedly and stably. Furthermore, the present invention relates to an electrolytic solution for an electrochemical device, comprising (1) a supporting electrolyte comprising a magnesium salt, and (2) at least one or more kinds of the compound represented by following general formula (I)
(wherein n represents an integer of 0 to 6, and n pieces of R
1
and n pieces of R
2
each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a halogenoalkyl group having 1 to 6 carbon atoms. A
1
and A
2
each independently represent —C(═O)—R
3
, —O—R
5
, —N(R
4
)—R
3
, —S—R
3
, —C(═O)—OR
3
, —O—C(═O)—R
3
, —C(═O)—N(R
4
)—R
3
, —N(R
4
)—C(═O)—R
3
, —SO
2
—R
3
, —N(R
4
)—SO
2
—R
3
, —O—B(OR
5
)
2
, —O—P(═O)(OR
5
)
2
, —CN, a monocyclic heterocyclic group, a group derived from cyclic acetal, a group derived from a cyclic carbonate ester, a group derived from a cyclic carboxylate ester).
本发明的目的是提供一种具有高电流密度和高安全性的电
化学器件,其中
镁的溶解和沉积可以稳定地反复进行。此外,本发明涉及一种电
化学器件的电解质溶液,包括(1)包括
镁盐的支持电解质和(2)至少一种或多种化合物,其表示为以下通式(I)(其中n表示0至6的整数,n个R1和n个R2各自独立地表示氢原子,具有1至6个碳原子的烷基或具有1至6个碳原子的卤代烷基。A1和A2各自独立地表示—C(═O)—R3,—O—R5,—N(R4)—R3,—S—R3,—C(═O)—OR3,—O—C(═O)—R3,—C(═O)—N(R4)—R3,—N(R4)—C(═O)—R3,—SO2—R3,—N(R4)—SO2—R3,—O—B(OR5)2,—O—P(═O)(OR5)2,—CN,单环杂环基,来自环状
缩醛的基团,来自环状
碳酸酯的基团,来自环状
羧酸酯的基团)。