NaNbO_(3)基无铅储能介质陶瓷研究进展  

Research Progress on NaNbO_(3)-Based Ceramics for Capacitive Energy Storage

作　　者：王震涛 李达[1] 赵维琛 刘津男 徐谛明 周迪[1] WANG Zhentao;LI Da;ZHAO Weichen;LIU Jinnan;XU Diming;ZHOU Di(School of Electronic and Information Engineering,Faculty of Electronic and Information Engineering,Xi'an Jiaotong University,Xi'an 710049,China)

机构地区：[1]西安交通大学电信学部电子科学与工程学院,西安710049

出　　处：《硅酸盐学报》2024年第4期1460-1476,共17页Journal of The Chinese Ceramic Society

基　　金：国家重点研发计划(2021YFB3800602);国家自然科学基金项目(51972260,52072295);中央高校基本科研业务费。

摘　　要：高性能环境友好型NaNbO_(3)(NN)基储能介质陶瓷由于其功率密度高、放电时间短,在脉冲功率电子器件方面具有广泛的应用。优异的储能性能及其温度稳定性、抗疲劳特性及工艺重复性等综合性能是NN基无铅陶瓷被广泛应用的前提。本文主要综述近几年来国内外有关NN基储能陶瓷的相结构调控、微观形貌优化、掺杂改性(A位、B位及A/B位共掺)以及相关机理研究方面的进展和动向。最后,对NN基无铅储能陶瓷在原料制备、烧结工艺、成型工艺、理论研究和器件研制方面的未来发展进行展望。Dielectric capacitors are one of the most important components in electrical equipment and electronic devices,and have attracted recent attention in the fields of new energy vehicles,advanced propulsion weapons,renewable energy storage,high-voltage transmission,and medical defibrillators.Dielectric capacitors have ultra-short charge and discharge time,ultra-high power density and high operational safety,compared with electrochemical capacitors such as batteries,fuel cells and supercapacitors.However,the low energy storage density of dielectric capacitors limits their wide application.Therefore,it is necessary to develop dielectric capacitors with a high temperature and a high energy density.NaNbO_(3)(NN)-based ceramic material is considered as one of the most potential dielectric energy storage materials because of its wide band gap,lower cost and high polarization.However,there are still some problems in the application of NN-based ceramic materials,such as low energy storage density and energy storage efficiency,and poor temperature stability.In order to optimize the energy storage performance of NN-based ceramics,phase structure regulation,micro-morphology optimization,doping modification(for A-site,B-site,A/B-site co-doping)are used to improve the energy storage density,efficiency,and frequency/temperature stability.These optimization strategies provide opportunities for the application of NN-based ceramics.NN-based ceramics have a complex phase structure,and pure NN cannot obtain double hysteresis loops at room temperature,which is attributed to the irreversible transition between the antiferroelectric P(AFE P)and ferroelectric Q(FE Q)phases.The AFE P phase can be stabilized,and the double hysteresis loop with a reversible phase transition can be obtained,improving the energy storage density and energy storage efficiency via reducing the tolerance factor.In terms of microstructure optimization,advanced sintering process,suitable sintering additives and preparation process can further improve the energy stora

关 键 词：无铅反铁电陶瓷 铌酸钠 掺杂改性 电介质储能 

分 类 号：TQ174[化学工程—陶瓷工业]