Dielectric phenomena and electrical energy storage of poly(vinylidene fluoride) based high-k polymers

Since the discovery of relaxor ferroelectric behavior was firstly reported in irradiated poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) copolymer, many strategies have been developed to enhance the electrical energy storage capability, including copolymerization, grafting, blending and fabricating of multilayer. This review article mainly summarizes the recent progresses on these strategies and aims to motivate the development of novel PVDF-based polymers for electrical energy storage and dielectric applications.