文献类型：期刊文献

英文题名：Enhanced energy storage capability of hydroxylated BiFeO3/PVDF composites designed by compositionally gradient multilayer structures

作者：Wang, Zunyu[1];Ye, Jianjun[1];Liu, Shu[2];Zhang, Xiuli[1];Hou, Ying[2];Li, Xingjia[1];Wang, Huiping[1]

机构：[1]Shanghai Univ Engn Sci, Sch Math Phys & Stat, Shanghai 201620, Peoples R China;[2]East China Univ Sci & Technol, Sch Phys, Shanghai 200237, Peoples R China

年份：2025

卷号：1010

外文期刊名：JOURNAL OF ALLOYS AND COMPOUNDS

收录：;EI(收录号：20244417272738);WOS:【SCI-EXPANDED(收录号:WOS:001348239000001)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant Nos. 12304310 and 52272109) , the Class III Peak Discipline of Shanghai-Materials Science and Engineering (High-Energy Beam Intelligent Processing and Green Manufacturing) .

语种：英文

外文关键词：Poly(vinylidene fluoride); Barium ferrite; Energy density storage

摘要：With the development of the microelectronics industry, there is a huge demand for flexible polymer dielectrics with excellent dielectric energy storage capacity, aimed at increasing dielectric constant and enhancing breakdown strength. In this study, the hydroxylated BiFeO3-loaded polyvinylidene fluoride(PVDF) composite films were prepared by electrostatic spinning techniques and the energy storage properties have been investigated. The results show that the dielectric constant and breakdown strength of the composites are effectively influenced by the hydroxylation modification and spatial structure. More interestingly, the seven-grade hydroxylated composite films exhibit a great enhancement of the excellent energy storage performances (U-e, similar to 13.21 J/cm(3); eta, similar to 66.2 %). This study demonstrates the immense potential of these composites as highly efficient dielectric materials suitable for use in energy storage capacitors.