Open AccessEffect of solvent on the energy storage property of poly(vinylidene fluoride-hexafluoropropylene)
Author(s) -
Fujia Chen,
Yang Zhao,
Yujiu Zhou,
Jin Xu,
Yue Yang,
Wei Yang
Publication year - 2020
Publication title -
materials research express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 35
ISSN - 2053-1591
DOI - 10.1088/2053-1591/ab6386
Subject(s) - hexafluoropropylene , materials science , fluoride , dimethylformamide , polymer , energy storage , dielectric , dimethyl sulfoxide , solvent , polymer chemistry , chemical engineering , composite material , organic chemistry , inorganic chemistry , chemistry , optoelectronics , copolymer , power (physics) , physics , tetrafluoroethylene , quantum mechanics , engineering
The application prospects of dielectric materials such as poly(vinylidene fluoride) (PVDF) based polymers in the field of energy storage have stimulated extensive research. In this study, the energy storage characteristics of poly(vinylidene fluoride-hexafluoropropylene) (P(VDF-HFP)) films crystallized from several solvents with different vapor pressure were investigated. The charge-discharge efficiency of the P (VDF-HFP) film crystallized from N, N-dimethylformamide (DMF) demonstrates an efficiency of 85% under an electric field of 1000 kV cm −1 , which is 1.42 times of the film crystallized from dimethyl sulfoxide (DMSO). Meanwhile, the insulation resistivity of the film crystallized from DMF is also higher than other films, and the energy storage characteristics are optimal in this study. This work provides guidance for the preparation of PVDF-based polymer films using the solution method.