Flexible multilayer lead-free film capacitor with high energy storage performances via heterostructure engineering
作者机构：Inner Mongolia Key Laboratory of Ferroelectric-Related New Energy Materials and DevicesSchool of Materials and MetallurgyInner Mongolia University of Science and TechnologyBaotou014010China
出 版 物：《Journal of Materiomics》 (无机材料学学报（英文）)
年 卷 期：2022年第8卷第4期
页 面：772-780页
核心收录：
学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学]
基 金：This research was supported by the Natural Science Foundation of Inner Mongolia(2019ZD12,2019LH05014) the Program for“Grassland Talents”Innovation Team of Inner Mongolia(Rare Earth Modified Lead-free Ferroelectric Multilayer Ceramic Capacitors Innovative Talent Team) Scientific and Technological Devel-opment Foundation of the Central Guidance Local(2021ZY0008) Youth Science and Technology Talents Project of Inner Mongolia(NJYT22061) National Science and Technology Major Project of Ordos City(2021EEDSCXQDFZ014) Westward young scholar of Chinese Academy of Sciences
主 题：Energy storage Ferroelectric Flexible Multilayer Heterostructure
摘 要：The immense potential of flexible energy storage materials applied in wearable electronic devices hasstimulated a lot of science researches on manufacturing technology and performance ***, an all-inorganic flexible ferroelectric film with multilayer heterostructure is prepared based onMn doped Bi0.5Na0.5TiO_(3)eBiNi0.5Zr0.5O_(3) (Mn:BNT-BNZ) and Bi0.5Na0.5TiO_(3)eBiZn0.5Zr0.5O_(3) (BNT-BZZ)relaxor ferroelectrics. A win-win situation of breakdown strength and polarization is achieved in theMn:BNT-BNZ/BNT-BZZ multilayer film with the stacking period N - 3, of which energy density and ef-ficiency reach 80.4 J/cm3 and 62.0% respectively. It is proposed that the excellent energy storage per-formances are attributed to the synergistic effect of the electric field amplification effect, interfaceblocking effect and the polarization coupling effect based on the multilayer heterostructure. Moreover,the flexible ferroelectric film exhibits outstanding temperature (25e205 - C), frequency (0.5e5 kHz)stability and antifatigue property (1 108 cycles), and can well maintain stable performance at differenttensile/compressive bending radii (10e5 mm) and even after 104 bending cycles with a fixed bendingradius of 3 mm. This work opens up a promising route to the development of flexible energy storagematerials.
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