Optimization of cation structure of imidazolium-based ionic liquids as ionic solvents for rechargeable magnesium batteries

被引：64

作者：

Kakibe, Takeshi ^{[1
,2
]}

Yoshimoto, Nobuko ^{[1
,2
]}

Egashira, Minato ^{[1
]}

Morita, Masayuki ^{[1
,2
]}

机构：

[1] Yamaguchi Univ, Dept Appl Chem, Grad Sch Sci & Engn, Ube, Yamaguchi 7558611, Japan

[2] Japan Sci & Technol Agcy JST, CREST, Kawaguchi, Saitama 3220012, Japan

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 11期

关键词：

Magnesium battery; Ionic liquid; Substituted imidazolium cation; Structure optimization; Methyl magnesium bromide; Cathodic deposition; DEPOSITION; ELECTROCHEMISTRY; PROGRESS;

D O I：

10.1016/j.elecom.2010.09.012

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A series of imidazolium cation-based ionic liquids (ILs) have been synthesized and examined as ionic solvents for rechargeable magnesium batteries. The electrolyte solutions consist of these ILs dissolving methylmagnesium bromide with tetrahydrofuran (MeMgBr/THF). The chemical structure of imidazolium cation much influenced the ionic conductivity and the electrochemical window of the system. A reversible process of cathodic deposition and anodic dissolution of magnesium has been successfully achieved at room temperature. The highest value of anodic peak current for magnesium dissolution was obtained in an optimized-structure IL with allyl and methoxyethyl groups as the substituents. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1630 / 1633

页数：4

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