| 摘 要： | 1 Results In this work,five systems of polymethylmethacrylate (PMMA)-based polymer electrolytes films have been prepared by the solution casting technique.The five systems are the (PMMA-EC) system,the (PMMA PC) system,the (PMMA LiCF3SO3) system,the (PMMA EC] LiCF3SO3) system and the (PMMA PC] LiCF3SO3) system.The conductivity for each system is characterized using impedance spectroscopy.The conductivity of the pure PMMA,the (PMMA EC) system and the (PMMA PC) system at room temperature is 2.37×10-9,3.63×10-8 and 4.18×10-8 S·cm-1 respectively.On addition of the salt in the (PMMA LiCF3SO3) system,the conductivity is increased by two orders of magnitude.The conductivity is further increased for the plasticized-salted systems.The room temperature conductivity for the highest conducting film in the (PMMA EC] LiCF3SO3) and (PMMA PC] LiCF3SO3) systems is 3.54×10-5 and 2.06×10-5 S·cm-1,respectively.
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