电化学（中英文） ›› 1996, Vol. 2 ›› Issue (3): 299-304.
• 研究论文 • 上一篇 下一篇
丁黎明
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Ding Liming
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摘要： 深入研究了交替马来酸酐共聚物多缩乙二醇酯（ＣＰ３５０）两种锂盐络合物ＣＰ３５０／ＬｉＡｓＦ＿６和ＣＰ３５０／ＬｉＰＦ＿６的离子传导性能，给出了与复阻抗谱相对应的等效电路．离子电导率随［Ｌｉ］／［ＥＯ］的变化而出现一极大值，室温下，两体系电导率极大值分别为１．３８×１０（－４），８．３２×１０（－５）Ｓ／ｃｍ．电导率随温度升高而增加．导电行为呈非－Ａｒｒｈｅｎｉｕｓ特征．阴阳离子半径之和（ｒ＿ｃ＋ｒ＿ａ）愈大，离子电导率愈高．
关键词: 高分子固体电解质, 复阻抗谱, 离子电导率
Abstract: A comb polymer(CP350)with oligo-oxyethylene side chains was prepared from methyl vinyl ether/maleic anhydride copolymer.The ionic conductivity of CP350/LiAsF6 and CP350/LiPF6 complexes was studied as a function of temperature and[Li]/[EO]ratios.A equivalent circuit was given to interpret complex impedance spectra. At 25℃,the ionic conductivity maxima of the two systems are 1.38×10(-4),8.32×10(-5)S/cm respectively. The appearance of the conductivity maxima has been interpreted as being due to the effect of microviscosity on ion transport. lonic conduction displays non-Arrhenius behaviour.The temperature dependence of ionic conductivity was attributed mainly to the temperature dependence of charge carrier hopping,ion pairing and micro Brown motion of side chains.The larger the(rc+ra)value the salt has,the higher the conductivity of the electrolyte film is.
Key words: Solid polymer electrolyte, Complex impedance spectra, Ionic conductivity, lon radius
中图分类号:
O646.21
丁黎明. 梳状高分子固体电解质的离子导电性研究[J]. 电化学（中英文）, 1996, 2(3): 299-304.
Ding Liming. Study on the Ionic Conductivity of Comb Polymer Electrolytes[J]. Journal of Electrochemistry, 1996, 2(3): 299-304.
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https://electrochem.xmu.edu.cn/CN/Y1996/V2/I3/299
