Physical and ionic transport studies on poly(ethylene oxide)-NaNO3 polymer electrolyte system

被引:82
作者
Anantha, PS [1 ]
Hariharan, K [1 ]
机构
[1] Indian Inst Technol, Dept Phys, Solid State Ion Lab, Madras 600036, Tamil Nadu, India
关键词
polymer electrolyte; poly(ethylene oxide); ionic conductivity;
D O I
10.1016/j.ssi.2004.07.006
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
Solid polymer electrolyte thin films based on poly(ethylene oxide) (PEO) complexed with NaNO3 salt with compositions between 2 and 10 ether oxygens per sodium have been prepared using the solution cast method as a possible sodium ion-conducting polymer electrolyte system. The complexation of the films has been investigated through X-ray diffraction (XRD), differential scanning calorimetry (DSC), and Fourier transform infrared spectroscopy (FTIR) measurements. Electrical properties have been measured as a function of composition and temperature using complex impedance spectroscopy. The maximum ionic conductivity has been found to be similar to3.5 x 10(-6) S/cm at room temperature for the composition O/Na=3:1. The transference numbers of different mobile species have been determined by means of DC polarization and combined AC/DC techniques. The complex impedance data have been analysed in conductivity and permittivity formalisms to cast light on possible ion transport mechanisms. The peaks found in the electric modulus plot have been characterized in terms of the stretched exponential parameter. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:155 / 162
页数:8
相关论文
共 22 条
[1]   IMPEDANCE AND MODULUS SPECTROSCOPY OF REAL DISPERSIVE CONDUCTORS [J].
ALMOND, DP ;
WEST, AR .
SOLID STATE IONICS, 1983, 11 (01) :57-64
[2]   Enhanced ionic conduction in NaNO3 by dispersed oxide inclusions [J].
Anantha, PS ;
Hariharan, K .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2003, 64 (07) :1131-1137
[3]   CONDUCTIVITY AND DIELECTRIC-CONSTANT OF THE POLYMERIC SOLID ELECTROLYTE, (PEO)8NH4SO3CF3, IN THE 100-HZ TO 10(10)-HZ RANGE [J].
ANSARI, SM ;
BRODWIN, M ;
STAINER, M ;
DRUGER, SD ;
RATNER, MA ;
SHRIVER, DF .
SOLID STATE IONICS, 1985, 17 (02) :101-106
[4]   MICROSCOPIC INVESTIGATION OF IONIC-CONDUCTIVITY IN ALKALI-METAL SALTS POLY(ETHYLENE OXIDE) ADDUCTS [J].
BERTHIER, C ;
GORECKI, W ;
MINIER, M ;
ARMAND, MB ;
CHABAGNO, JM ;
RIGAUD, P .
SOLID STATE IONICS, 1983, 11 (01) :91-95
[5]  
BOUKAMP BA, 1989, CT12888CT11289
[6]  
Bruce P. G., 1995, SOLID STATE ELECTROC
[7]   POLYMERIC SOLID ELECTROLYTES - DYNAMIC BOND PERCOLATION AND FREE-VOLUME MODELS FOR DIFFUSION [J].
DRUGER, SD ;
RATNER, MA ;
NITZAN, A .
SOLID STATE IONICS, 1983, 9-10 (DEC) :1115-1120
[8]   COMPLEXES OF ALKALI-METAL IONS WITH POLY(ETHYLENE OXIDE) [J].
FENTON, DE ;
PARKER, JM ;
WRIGHT, PV .
POLYMER, 1973, 14 (11) :589-589
[9]   Ionic conductivity in crystalline polymer electrolytes [J].
Gadjourova, Z ;
Andreev, YG ;
Tunstall, DP ;
Bruce, PG .
NATURE, 2001, 412 (6846) :520-523
[10]  
Gray FM., 1991, POLYM ELECTROLYTES F