Tunable dielectric polarization and breakdown behavior for high energy storage capability in P(VDF–TrFE–CFE)/PVDF polymer blended composite films
Pu Mao, Jiping Wang, Lixue Zhang, Qinzhao Sun, Xixia Liu, Liqiang He, Shujuan Liu, Siwen Zhang, Hao Gong
Abstract
. This obtained high discharge energy density is 84% higher than the pure PVDF film and 582% higher than a commercialized biaxially oriented polypropylene (BOPP). Large interfacial polarization and strong interaction of polymer chains between the PVDF polymer and P(VDF-TrFE-CFE) terpolymer may contribute to the tunable dielectric constant and electric breakdown strength, thus promoting the energy storage capability. This work establishes a facile, but effective approach to achieve the high energy storage capability of PVDF polymer-based flexible composite films for capacitive energy storage applications.
Topics & Concepts
Materials scienceDielectricPolymerComposite materialComposite numberEnergy storageCapacitorPolarization (electrochemistry)Electric fieldPolypropyleneCopolymerPolymer blendHigh-κ dielectricOptoelectronicsVoltageElectrical engineeringPhysical chemistryChemistryEngineeringQuantum mechanicsPower (physics)PhysicsDielectric materials and actuatorsAdvanced Sensor and Energy Harvesting MaterialsFerroelectric and Piezoelectric Materials