Effect of Cl- and TFSI- anions on dual electrolyte systems in a hybrid Mg/Li4Ti5O12 battery

被引：17

作者：

Bitenc, Jan ^{[1
]}

Firm, Marko ^{[2
]}

Vitanova, Anna Randon ^{[3
]}

Dominko, Robert ^{[1
]}

机构：

[1] Natl Inst Chem, Hajdrihova 19, Ljubljana 1000, Slovenia

[2] Univ Ljubljana, Fac Chem & Chem Technol, Vella Pot 113, Ljubljana 1000, Slovenia

[3] Honda R Europe Deutschland GmbH, Carl Legien Strasse 30, D-63073 Offenbach, Germany

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2017年 / 76卷

关键词：

Dual electrolyte; TFSI- and CI- anion; Hybrid Mg/Li4Ti5O12 battery; Mg deposition/stripping; MAGNESIUM; PERFORMANCE; STABILITY; CHLORIDE; CATHODE;

D O I：

10.1016/j.elecom.2017.01.013

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Dual electrolyte systems based on APC electrolyte mixed with either LiCl or LiTFSI are compared in a hybrid Mg/Li4Ti5O12 battery. Their comparison points to the detrimental effect of TFSI- anions on the battery performance through increase of polarization for Mg stripping and subsequent capacity fade. The effect is further explored through the study of Mg deposition/stripping in a dual electrolyte system and its comparison with conventional Mg electrolyte. Again, the detrimental effect of TFSI- anions is confirmed through the increase of polarization and decrease of the Coulombic efficiency, while Cl- anions have a minor beneficial effect on both. We hypothesize that the passivation of Mg metal in TFSI- anions containing electrolytes is the likely cause. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：29 / 33

页数：5

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