Lithium solvation in bis(trifluoromethanesulfonyl)imide-based ionic liquids

被引：223

作者：

Lassegues, Jean-Claude ^{[1
]}

Grondin, Joseph ^{[1
]}

Talaga, David ^{[1
]}

机构：

[1] Univ Bordeaux 1, CNRS, UMR 5803, Lab Phys Chim Mol, F-33405 Talence, France

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2006年 / 8卷 / 48期

关键词：

D O I：

10.1039/b615127b

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The lithium solvation in (1 - x)(EMI-TFSI), xLiTFSI ionic liquids where EMI+ is the 1-ethyl-3-methylimidazolium cation and TFSI- the bis(trifluoromethanesulfonyl)imide anion, is shown by Raman spectroscopy to involve essentially [Li(TFSI)(2)](-) anionic clusters for 0 < x < 0.4, but addition of stoichiometric amounts of solvents S such as oligoethers changes the lithium solvation into [Li(S)(m)](+) cationic clusters; the lithium transference number in TFSI- based ionic liquid electrolytes for lithium batteries should thus be strongly improved.

引用

页码：5629 / 5632

页数：4

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