摘要
随着电力电容器向着轻量化、小型化的方向发展,高储能密度电介质材料在电容器领域具有广阔的应用前景,其中核-壳结构纳米复合电介质因其优异的储能特性而受到广泛关注。本文综述了核-壳结构纳米复合电介质的最新研究进展,介绍了核-壳结构纳米填料的制备方法,包括有机表面改性和无机壳层包覆,探讨了核-壳结构纳米填料对复合电介质电气强度、介电常数以及介质损耗的作用机理,提供了核-壳结构纳米复合电介质的构建策略,对使用核-壳结构设计高储能密度纳米复合电介质的现存问题进行总结,并展望了其未来的发展方向。
With the development of power capacitors towards lightweight and miniaturization,dielectric materials with high energy storage density have broad application prospects in the field of capacitors,among them,nanocomposite dielectrics with core-shell structure have attracted extensive attention due to their excellent energy storage properties.In this paper,the latest progress of nanocomposite dielectrics with core-shell structure were introduced,the preparation methods of nanofillers with core-shell structure were introduced,including organic surface modification and inorganic shell covering.Then the effect mechanism of nanofillers with core-shell structure on the electric strength,dielectric constant,and dielectric loss of nanocomposite dielectrics were discussed,and the construction strategies of nanocomposite dielectrics with core-shell structure were provided.At last,the existing problems in the design of high energy storage density nanocomposite dielectrics with core-shell structure were summarized,and their future development direction was prospected.
作者
张子琦
程璐
刘文凤
ZHANG Ziqi;CHENG Lu;LIU Wenfeng(State Key Laboratory of Electrical Insulation and Power Equipment,Xi'an Jiaotong University,Xi'an 710049,China)
出处
《绝缘材料》
CAS
北大核心
2022年第5期1-9,共9页
Insulating Materials
基金
国家自然科学基金面上项目(52077163)。
关键词
电力电容器
纳米复合电介质
储能密度
核-壳结构
power capacitor
nanocomposite dielectrics
energy storage density
core-shell structure
