Role of free volumes and segmental dynamics on ion conductivity of PEO/LiTFSI solid polymer electrolytes filled with SiO<sub>2</sub> nanoparticles: a positron annihilation and broadband dielectric spectroscopy study
P. Utpalla, Sandeep Kumar Sharma, S. K. Deshpande, Jitendra Bahadur, Debasis Sen, Manjulata Sahu, P. K. Pujari
Abstract
NPs. The enhancement in ionic conductivity is observed to be directly correlated with the free volume characteristics and segmental dynamics of the PEO matrix, confirming their role in ion transport in polymer electrolytes.
Topics & Concepts
Materials scienceElectrolyteIonic conductivityConductivityPositron annihilation spectroscopyDielectricDielectric spectroscopyNanoparticlePolymerPolymer electrolytesFast ion conductorIonIonic bondingChemical engineeringPolymer chemistryChemical physicsPositron annihilationComposite materialNanotechnologyPositronPhysical chemistryChemistryOptoelectronicsOrganic chemistryElectrodeElectronPhysicsEngineeringElectrochemistryQuantum mechanicsAdvanced Battery Materials and TechnologiesAdvancements in Battery MaterialsAdvanced Battery Technologies Research