Development of a novel 1-trifluoroacetyl piperidine-based electrolyte for aluminum ion battery

被引：18

作者：

Elterman, V. A. ^{[1
]}

Shevelin, P. Yu ^{[1
]}

Chizhov, D. L. ^{[2
]}

Yolshina, L. A. ^{[1
]}

Il'ina, E. A. ^{[1
]}

Borozdin, A., V ^{[1
]}

Kodess, M., I ^{[2
]}

Ezhikova, M. A. ^{[2
]}

Rusinov, G. L. ^{[2
]}

机构：

[1] Russian Acad Sci, Ural Branch, Inst High Temp Electrochem, Akad Skaya 20, Ekaterinburg 620990, Russia

[2] Russian Acad Sci, Ural Branch, IYa Postovsky Inst Organ Synth, Akad Skaya 20, Ekaterinburg 620990, Russia

来源：

ELECTROCHIMICA ACTA | 2019年 / 323卷

关键词：

Aluminum ion battery; Ionic liquid; 1-Trifluoroacetyl piperidine; Specific conductivity; Exchange current density; SULFONE-BASED ELECTROLYTES; AL-27; NMR; LIQUID; ELECTRODEPOSITION; ALCL3; AL; TETRAHYDROFURAN; COMPLEXES; CHLORIDE; ANODE;

D O I：

10.1016/j.electacta.2019.134806

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The first example of chloroaluminate ionic liquids (ILs) analogues based on amides of fluorinated carboxylic acids, namely 1-trifluoroacetyl piperidine (TFAP), has been described. The possibility of applying of this electrolytes has been experimentally evaluated in the series TFAP/AlCl3; TFAP/LiCl/AlCl3; TFAP/[EMIm]Cl/AlCl3; [EMIm]Cl/AlCl3 for use in an aluminum ion battery. The specific conductivities measured by the method of current interruption and impedance spectroscopy at 30 degrees C were 0.49, 0.28, 1.37, 20.23 mS cm(-1), respectively. The exchange current densities at the two-phase interface aluminium/electrolyte investigated using the impedance spectroscopy method were 0.18, 0.03, 0.42, 1100 mu A cm(-2), respectively. TFAP-based electrolytes did not crystallize when cooled down to -60 degrees C, according to DSC data. The presence of the molecular [AlCl3 (TFAP)], and the ionic AlCl4- [AlCl2(TFAP)(4)](+), and [Al(T-FAP)(6)](3-) species is proposed based on the Al-27 NMR spectra of the studied new ILs analogues. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页数：9

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