Characterization of solid polymer electrolytes based on poly (trimethylenecarbonate) and lithium tetrafluoroborate

被引:64
作者
Silva, MM
Barros, SC
Smith, MJ [1 ]
MacCallum, JR
机构
[1] Univ Minho, Ctr Quim, P-4710320 Braga, Portugal
[2] Univ St Andrews, Sch Chem, St Andrews, Fife, Scotland
关键词
polymer electrolytes; lithium tetrafluoroborate; conductivity; thermal stability;
D O I
10.1016/j.electacta.2003.12.017
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The results of an investigation of a polymer electrolyte system based on the poly(trimethylene carbonate) host matrix, designated as p(TMC), with lithium tetrafluoroborate guest salt are described in this presentation. Electrolytes with lithium salt compositions with n between 3 and 80 (where n represents the number of (O=COCH2CH2CH2O) units per lithium ion) were prepared by co-dissolution of salt and polymer in anhydrous tetrahydrofuran. The homogeneous solutions obtained by this procedure were evaporated, within a preparative glovebox and under a dry argon atmosphere, to form thin films of electrolyte. The solvent-free electrolyte films produced were obtained as very flexible, transparent, completely amorphous films and were characterized by measurements of total ionic conductivity, cyclic voltammetry, differential scanning calorimetry and thermogravimetry. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1887 / 1891
页数:5
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