Synthesis and characterization of pure and nano-ZnO doped PMMA films for Lithium-ion batteries

Poly (methyl methacrylate) (PMMA) exhibits excellent electrical as well as mechanical properties. In the present work, pure and nano Zinc oxide (ZnO) doped PMMA films were prepared using solution cast method. The characterization of thin film samples of pure and ZnO doped PMMA having 30 μm thickness with similar (Al-Al) electrode combination have been studied, as a function of current and voltage, for temperature ranging 30 °C to 180 °C at 300 and 500V. ZnO doped PMMA foil samples exhibits peak maxima around 95±10 °C and also confirms decrease in activation energy after incorporation of nano ZnO. The TSDC thermograms and its parameters explains the shift of peak towards the lower temperature side. The formation of charge transfer complex (CTC) reveals the tendency of polymer matrix which indicates the effect of glass transition temperature or activation energy, which results in reduction of discharge rate also led to enhance the stability of Lithium-ion batteries (LIBs). The results were analyzed in detail. (author)