无铅非线性介电储能陶瓷:现状与挑战  

Lead-free Nonlinear Dielectric Ceramics for Energy Storage Applications: Current Status and Challenges

作　　者：杜红亮[1] 杨泽田 高峰[2] 靳立 程花蕾[4] 屈绍波[1] DU Hong-Liang;YANG Ze-Tian;GAO Feng;JIN Li;CHENG Hua-Lei;QU Shao-Bo(Science College,Air Force Engineering University,Xi＇an 710051,China;State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi＇an 710072,China;Electronic Materials Research Laboratory,Key Laboratory of the Ministry of Education ＆ International Center for Dielectric Research,Xi＇an Jiaotong University,Xi＇an 710049,China;Department of Chemistry,Baoji University of Arts and Science,Baoji 721013,China)

机构地区：[1]空军工程大学理学院,西安710051 [2]西北工业大学凝固技术国家重点实验室,西安710072 [3]西安交通大学电子陶瓷与器件教育部重点实验室,西安710049 [4]宝鸡文理学院化学与化工学院,宝鸡721013

出　　处：《无机材料学报》2018年第10期1046-1058,共13页Journal of Inorganic Materials

基　　金：国家自然科学基金(21501007);陕西省自然科学基金(2017JM5016);西北工业大学凝固技术国家重点实验室开放课题(SKLSP201709;SKLSP201718)~~

摘　　要：相对于聚合物等储能介质材料,介电陶瓷具有温度稳定性好和循环寿命长的优点,是制备脉冲功率储能电容器的优秀候选材料。但目前介电陶瓷的储能密度相对较低,不能满足脉冲功率设备小型化的要求。因此,如何显著提高介电陶瓷的储能密度成为近年来功能陶瓷研究的热点之一。本文首先介绍了介电储能电容器对陶瓷材料性能的要求,然后结合本课题组的研究工作,评述了BaTiO3基、BiFeO3基、(K0.5Na0.5)NbO3基无铅弛豫铁电陶瓷和(Bi0.5Na0.5)TiO3基、AgNbO3基无铅反铁电陶瓷储能特性的研究现状,重点阐述了不同材料体系的组分设计思路及相关储能特性,分析了无铅非线性介电储能陶瓷所面临的机遇和挑战,指出了应对策略。最后,展望了下一步的研究方向和内容。Compared to polymers and their nanocomposites, dielectric ceramics are considered as promising candi- dates for the pulsed-power devices because of their excellent temperature stability and good anti-fatigue characteristic. Nevertheless, relatively low energy storage density is the main disadvantage for dielectric ceramics, which does not meet the requirement of miniaturization for pulsed-power devices. Therefore, how to improve the energy storage dertsity of dielectric ceramics has become one of hot topics on the research of functional ceramics in recent years. In this paper, the basic principle of the capacitor for electric energy storage was introduced firstly and then the research ad- vances of BaTiO3-based, BiFeO3-based, （K0.5Na0.5）NbO3-based lead-flee relaxor ceramics and （Bi0.5Na0.5）TiO3-based, and AgNbO3-based lead-flee anti-ferroelectric ceramics were reviewed based on our group＇s research, in which the composition design strategies of different material systems were especially summarized. Finally, the opportunities and challenges of lead-free nonlinear energy-storage ceramics were analyzed, and the coping strategies as well as the future development direction were also proposed.

关 键 词：无铅陶瓷 储能密度 击穿场强 极化差值 综述 

分 类 号：TM534[电气工程—电器]