Depressing relaxation and conduction loss of polar polymer materials by inserting bulky charge traps for superior energy storage performance in high-pulse energy storage capacitor applications
Meirong Zhang, Bofeng Zhu, Xiao Zhang, Zhenxue Liu, Xiaoyong Wei, Zhicheng Zhang
Abstract
could be obtained, which are much better than those of reported polymer dielectrics. The strong space charge trapping effect of the low content of VQQ is well addressed by thermally stimulated depolarization currents (TSDC) and density functional theory analysis (DFT) of increasing breakdown strength, energy density and discharging efficiency. This work offers a promising strategy for achieving high energy density and low loss in polar polymer dielectrics for their commercial application in energy storage capacitors.
Topics & Concepts
Materials scienceDielectricCapacitorEnergy storagePolymer capacitorSpace chargeRelaxation (psychology)PolymerDielectric lossHigh-κ dielectricElectric fieldPermittivityOptoelectronicsComposite materialVoltageElectronElectrical engineeringEngineeringQuantum mechanicsSocial psychologyElectrolytic capacitorPower (physics)PsychologyPhysicsDielectric materials and actuatorsAdvanced Sensor and Energy Harvesting MaterialsFerroelectric and Piezoelectric Materials