离子取代对铌酸银反铁电陶瓷储能性能影响的研究进展  

Progress on Ion Substitution on Energy Storage Performances of Silver Niobate Antiferroelectric Ceramics

作　　者：周创 陈大凯 蔡苇 杨蕊如 陈思敏 Zhou Chuang;Chen Dakai;Cai Wei;Yang Ruiru;Chen Simin(School of Metallurgy and Materials Engineering,Chongqing University of Science and Technology,Chongqing 401331,China;Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices,Chongqing 401331,China)

机构地区：[1]重庆科技学院冶金与材料工程学院,重庆401331 [2]纳微复合材料与器件重庆市重点实验室,重庆401331

出　　处：《稀有金属》2022年第12期1609-1620,共12页Chinese Journal of Rare Metals

基　　金：重庆市高校创新研究群体项目(CXQT19031);重庆市科技创新领军人才支持计划项目(CSTCCXLJRC201919);重庆市研究生科研创新项目(CYS20361,CYS22723);重庆科技学院研究生科研创新项目(YKJCX2120201)资助。

摘　　要：相对于其他储能方式,电介质储能电容器具有功率密度高、循环次数高和充放电速度快等优点,因而电介质储能材料受到了广泛关注。在现有的电介质材料中,具有双电滞回线特征的反铁电材料因其具有大的饱和极化强度和小的剩余极化强度,被认为在电介质储能领域具有比铁电体和线性电介质更好的应用前景。虽然锆钛酸铅基等反铁电材料具有优异的储能性能,但由于含铅,逐渐受到限制,发展具有优异储能性能的无铅反铁电材料具有重要的意义。近年来,AgNbO_(3)陶瓷作为一种重要的无铅反铁电材料,表现出较为优异的储能性能,已被成功应用于电介质储能领域,但其储能密度和储能效率仍存在较大的提升空间。综述了AgNbO_(3)反铁电陶瓷储能性能掺杂改性的研究现状,基于电介质储能的基本原理和AgNbO_(3)结构特征,从稳定反铁电相、引入弛豫行为、晶粒尺寸效应等角度详细阐述了AgNbO_(3)反铁电陶瓷储能性能优化策略以及A位、B位及A/B位离子取代对其储能性能的影响机制,最后对AgNbO_(3)反铁电陶瓷亟待解决的问题和未来发展方向进行了展望。Energy is very important for our life and becomes the most important item in the world today.The energy crisis has become an important issue in the world.Due to the lack of limited fossil fuels,the energy crisis can lead to deterioration of social lifestyles and national economies.The increasingly serious energy crisis and environmental pollution have prompted countries worldwide to commit themselves to the development and utilization of new energy such as solar energy,wind energy,hydrogen energy,et al.In order to make full use of the above-mentioned new energy,the efficient energy storage technology is an urgent problem to be solved.It is of great strategic significance to improve the comprehensive utilization efficiency of energy and realize the sustainable development of energy.For electrical energy storage,fuel cells,batteries,supercapacitors and dielectric capacitors are regarded as four promising devices.Compared to other forms of energy storage,the dielectric energy storage capacitor has the characteristics of ultrahigh power density(~1×10^(8)W·kg^(-1)),high cycle number(>1×10^(6))and fast charging and discharging rates(<100 ns),because they store and release electrical energy through polarization and depolarization in the electric field instead of chemical reaction.Thus,the dielectric energy storage is especially suitable for electronic pulse devices.To further meet the needs of devices integration,lightweight and miniaturization,it is urgent to improve the energy storage density and efficiency of dielectric energy storage capacitors.Among the dielectric materials,the antiferroelectric materials with double hysteresis loops have better application prospects in the field of dielectric energy storage than ferroelectrics and linear dielectrics because of their high saturation polarization and low remnant polarization.Although lead zirconate titanate-based antiferroelectric materials have excellent energy storage properties,they are gradually limited due to lead content.It is of great significance to devel

关 键 词：AgNbO_(3) 储能密度 容差因子 离子极化率 

分 类 号：TM225[一般工业技术—材料科学与工程]