Role of preparation methods on the structural and dielectric properties of plasticized polymer blend electrolytes: Correlation between ionic conductivity and dielectric parameters

- PEO-PMMA-LiCF3SO3-x wt% PEG electrolytes were prepared by different methods.
- Dielectric/electrical properties vary non-monotonously with PEG concentration.
- The ionic conductivity and amorphous phase change with preparation methods.
- Ion conduction is through hopping mechanism coupled with polymer segmental motion.
- Ionic conductivity is ∼10−5 S cm−1 at room temperature.