SOLVATION OF LITHIUM IONS IN MIXTURES OF TETRAETHYLENE GLYCOL DIMETHYL ETHER AND PROPYLENE CARBONATE

被引：26

作者：

FISH, D ^{[1
]}

SMID, J ^{[1
]}

机构：

[1] SUNY SYRACUSE,COLL ENVIRONM SCI & FORESTRY,FAC CHEM,POLYMER RES INST,SYRACUSE,NY 13210

来源：

ELECTROCHIMICA ACTA | 1992年 / 37卷 / 11期

关键词：

POLYMER ELECTROLYTES; SOLVATION; LITHIUM IONS; PROPYLENE CARBONATE; TETRAGLYME;

D O I：

10.1016/0013-4686(92)87120-O

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The effect of propylene carbonate (PC) on the solvation shell of lithium ions in solutions of lithium perchlorate and lithium picrate in tetraethylene glycol dimethyl ether (TEGDME) was studied as a function of PC content and temperature using C-13 NMR, conductance, and optical and infrared spectroscopy. The results show that while PC promotes the dissociation of the electrolyte into free ions, it is at the same time a relatively poor cation chelating agent, and most of the cations remain bound to TEGDME even up to 80 mass % (90 mol%) PC. The ramifications of these observations for PC-plasticized lithium-polymer electrolytes are discussed.

引用

页码：2043 / 2049

页数：7

共 45 条

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[45] Thermochemical investigations of the systems useful for lithium battery construction .2. Solution enthalpies of LiClO4 in 1,2-dimethoxyethane plus gamma-butyrolactone mixtures and of LiClO4, NaI and N,N-dimethylacetamide in 1,2-dimethoxyethane plus propylene carbonate mixtures at 298.15 K
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