Hot-pressed Na+ ion conducting solid polymer electrolytes: (1-x) PEO: x NaPO3

被引:24
作者
Chandra, A. [1 ]
机构
[1] Shri Shankaracharya Inst Profess Management & Tec, Dept Appl Phys, Raipur 492015, Chhattisgarh, India
关键词
COMPOSITE; TRANSPORT; MEMBRANES; OXIDE);
D O I
10.1051/epjap/2010035
中图分类号
O59 [应用物理学];
学科分类号
摘要
Synthesis and ion transport property studies on hot-pressed Na+ ion conducting solid polymer electrolytes (SPEs): (1 - x) PEO: x NaPO3, where x in wt.%, are reported. The compositional dependent conductivity (sigma) studies revealed SPE film: (75PEO: 25NaPO(3)) as the optimum conducting composition (OCC) with room temperature conductivity sigma similar to 6.7 x 10(-7) S cm(-1), which is more than two orders of magnitude higher than that of pure PEO polymer host (sigma similar to 3.2x10(-9) Scm(-1)). Materials characterization and polymer-salt complexation were done with the help of XRD, FTIR, SEM, DSC techniques. In order to understand the ion transport behaviour in SPEs, the measurement on some basic ionic parameters viz. ionic conductivity (s), ionic mobility (sigma), mobile ion concentration (mu), ionic transference number (t(ion)) have been carried out using different experimental techniques. The activation energy ( Ea) values involved in the thermally activated conductivity processes have been computed from "log sigma - 1/T" Arrhenius plots.
引用
收藏
页码:211031 / 211034
页数:4
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