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.
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页码：2043 / 2049
页数：7
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