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碳酸乙烯酯(EC)增塑的(PEO)16LiClO4聚电解质电导率的研究
Ionic Conductivity of(PEO)16 /LiClO4 Polymer Electrolyte Plasticized with Ethylene Carbonate(EC)
【摘要】 采用差示扫描量热法 (DSC)和交流阻抗方法对EC增塑的 (PEO) 16 LiClO4 聚电解质进行了研究。结果表明 (PEO) 16 LiClO4 /EC体系的玻璃化转变温度 (tg)及PEO的结晶度 (Xc)降低 ,电导率 (б)增加 ,且б与温度 (T)的关系符合Arrhenius行为。提出了离子导电聚电解质 /不锈钢 (SS)这种结构的界面双层结构和交流阻抗谱图的模拟等效电路
【Abstract】 The Polyethylene oxide(PEO) 16 LiClO 4 polymer electrolyte plasiticized with EC was studied using Differential Scanning Calorimetry(DSC)and impedance spectroscopy.It is found that the conductivity of the plasticized films were increased and the temperature dependence of the conductivity is Arrhenius like.Moreover,a schematic of the electrical double layer and an equivalent circuit relative to the SS/polymer electrolyte/SS structure were proposed.
【关键词】 聚合物电解质;
增塑;
电导率;
交流阻抗;
【Key words】 polymer electrolyte; plasticize; ionic conductivity; impedance spectroscopy;
【Key words】 polymer electrolyte; plasticize; ionic conductivity; impedance spectroscopy;
【基金】 中国科学院王宽诚博士后工作奖励基金 !(2 0 0 0 47);中国博士后科学基金资助项目
- 【文献出处】 北京大学学报(自然科学版) ,Acta Scicentiarum Naturalum Universitis Pekinesis , 编辑部邮箱 ,2001年02期
- 【分类号】O631
- 【被引频次】11
- 【下载频次】243