High energy storage density with ultra-high efficiency and fast charging-discharging capability of sodium bismuth niobate lead-free ceramics
作者机构：Laboratory for Research in Advanced MaterialsDepartment of Physics University of Science and Technology BannuTownship Bannu 28100 Khyber PakhtunkhwaPakistan Center for Material ScienceIslamia College Peshawar Peshawar25120 Khyber PakhtunkhwaPakistan Materials Research LaboratoryDepartment of Physics University of Peshawar25120 KPPakistan§Department of Materials Science and EngineeringInstitute of Space Technology Islamabad44000 IslamabadPakistan Department of ChemistryUniversity of Science and Technology Bannu 28100 Khyber PakhtunkhwaPakistan
出 版 物：《Journal of Advanced Dielectrics》 (先进电介质学报（英文）)
年 卷 期：2021年第11卷第4期
页 面：37-45页
学科分类：081702[工学-化学工艺] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学]
基 金：The Higher Education Commission(HEC)Islamabad Pakistan has financially supported this work through the National Research Program for University(7488/KPK/NRPU/R&D/HEC/2017) The financial support extended by HEC,Pakistan through Project No.NRPU-8148
主 题：Polarization energy density capacitor efficiency
摘 要：Ceramics-based capacitors with excellent energy storage characteristics,fast charging/discharge rate,and high efficiency have received significant *** this work,Na0.73Bi0.09NbO3(NBN)ceramics were processed through solid-state sintering *** investigated ceramics were crystallized in a single perovskite *** microstructure,with small average grain size(~0.92 mm)is obtained for the investigated ceramics.A high dielectric constant1000 accompanied by a low dielectric loss was achieved for these ceramics at ambient temperature.A recoverable energy density~0.92 J/cm3 and ultra-high efficiency of 96.33%at 138 kV/cm were obtained at room ***,a lower discharging time of 0.14 ms was also *** material is a suitable candidate for power pulsed applications.
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