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) 16LiClO4/EC体系的玻璃化转变温度 (Tg)及PEO的结晶度 (Xc)降低 ,电导率 (δ)增加 ,且δ与温度 (T )的关系符合Arrhenius行为 .另外还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 .所提出的模拟等效电路能较好地模拟实验数据 。
The study of polyethylene oxide (PEO) 16 LiClO 4 polymer electrolyte plasiticized with EC using Differential Scanning Calorimetry (DSC) and impedance spectroscopy indicates that the temperature of the glassivation of the electrolyte and the crystallinity of PEO decrease the conductivity of the plasticized films increases and the temperature dependence of the conductivity is Arrhenius_like, and,a schematic of electrical double layer and an equivalent circuit relative to the SS/polymer_electrolyte/SS structure generally suitable for AC_impedence test and analysis are proposed.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
2002年第2期139-141,共3页
Journal of Harbin Engineering University
关键词
碳酸乙烯酯
聚合物电解质
增塑
电导率
交流阻抗
polymer electrolyte
plasticize
ionic conductivity
impedance spectroscopy
