Ultrahigh energy storage performance realized in AgNbO_(3)-based antiferroelectric materials via multiscale engineering

作     者：Mingyuan Zhao Jing Wang Ji Zhang Li-Feng Zhu Lei Zhao 

作者机构：Key Laboratory of High-Precision Computation and Application of Quantum Field Theory of Hebei ProvinceCollege of Physics Science&TechnologyHebei UniversityBaoding 071002China State Key Laboratory of Mechanics and Control of Mechanical StructuresCollege of Aerospace EngineeringNanjing University of Aeronautics and AstronauticsNanjing 210016China School of Materials Science and EngineeringNanjing University of Science&TechnologyNanjing 210094China School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China 

出 版 物：《Journal of Advanced Ceramics》 (先进陶瓷（英文）)

年 卷 期：2023年第12卷第6期

页      面：1166-1177页

核心收录：

学科分类：080503[工学-材料加工工程] 080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the Natural Science Foundation of Hebei Province,China(E2021201044) the National Natural Science Foundation of China(51802068 and 52073144) 

主　　题：antiferroelectric(AFE) AgNbO_(3)(AN)-based ceramics energy storage multilayer structure 

摘      要：Antiferroelectric(AFE)materials are promising for the applications in advanced high-power electric and electronic *** them,AgNbO_(3)(AN)-based ceramics have gained considerable attention due to their excellent energy storage ***,multiscale synergistic modulation is proposed to improve the energy storage performance of AN-based materials,whereby the multilayer structure is employed to improve the breakdown strength(Eb),and Sm/Ta doping is utilized to enhance the AFE *** a result,ultrahigh recoverable energy storage density(Wrec)up to 15.0 J·cm^(-3) and energy efficiency of 82.8%are obtained at 1500 kV·cm^(-3) in Sm/Ta co-doped AN multilayer ceramic capacitor(MLCC),which are superior to those of the state-of-the-art AN-based ceramic ***,the discharge energy density(Wa)in direct-current charge-discharge performance reaches 9.1 J·cm^(-3),which is superior to that of the reported lead-free energy storage *** synergistic design of composition and multilayer structure provides an applicable method to optimize the energy storage performance in all dielectric energy storage systems.