Gel electrolytes prepared from oligo(ethylene glycol)dimethacrylate:: glass transition, conductivity and Li+-coordination

被引：48

作者：

Abbrent, S

Lindgren, J

Tegenfeldt, J

Wendsjo, A

机构：

[1] Danion AS, DK-5260 Odense S, Denmark

[2] Univ Uppsala, Inst Chem, S-75121 Uppsala, Sweden

来源：

ELECTROCHIMICA ACTA | 1998年 / 43卷 / 10-11期

关键词：

gel electrolyte; glass transition; conductivity; Li+-coordination;

D O I：

10.1016/S0013-4686(97)10018-4

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The influence of two plasticizers, propylene carbonate and dimethyl sulphoxide, as well as different salt concentrations of Li(TFSI), on properties of a polymer gel electrolyte material has been studied using differential scanning calorimetry (DSC) and ac impedance and FTIR spectroscopy. Variations of glass transition temperature and the conductivity behaviours of the systems were examined, and found to be highly dependent on the amount and type of the plasticizer used. Characteristic band-shifts in FTIR spectra, indicating coordination of lithium ions, have been found for the polymer and both the plasticizers in the corresponding binary solutions. These shifts were used to study the coordination preferences in the complete ternary electrolyte system. The combined results from the three experimental techniques have been discussed. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.

引用

页码：1185 / 1191

页数：7

共 15 条

[1] CONTACT ION-PAIR FORMATION AND ETHER OXYGEN COORDINATION IN THE POLYMER ELECTROLYTES M[N(CF3SO2)(2)](2)PEO(N) FOR M=MG, CA, SR AND BA [J].