Optimizing nanostructures to achieve enhanced breakdown strength and improved energy storage performances in dipolar polymers
Lei Yang, Xuyang Liu, Zhouxun Lu, Tong Song, Zhihong Yang, Jianmei Xu, Qing Wang, Zhiyuan Chen, Wei Zhou
Abstract
which is 261% that of the pristine PVDF film, while maintaining the charge-discharge efficiency above 80%. In addition, the alteration of experimental breakdown strength with the increase of irradiation dose is found to be inversely correlated with the size variation of free volume holes, and the theoretical simulation of local electric field distribution further proves that the breakdown strength enhancement originates from the size shrinkage of free volume holes. The adjustment of free volume provides a potentially effective way to regulate the dielectric properties and energy storage performances of dipolar polymers.
Topics & Concepts
Materials scienceDielectricComposite materialElectric fieldPolymerDielectric strengthPolarization (electrochemistry)IrradiationDipoleEnergy storageField strengthNanocompositeOptoelectronicsChemistryThermodynamicsOrganic chemistryMagnetic fieldPhysical chemistryPhysicsQuantum mechanicsNuclear physicsPower (physics)Dielectric materials and actuatorsAdvanced Sensor and Energy Harvesting MaterialsHigh voltage insulation and dielectric phenomena