摘要
正极材料性能对锂离子电池的发展和应用有着关键作用,但是其结构相变、电导率低及电解液副反应等不利因素仍制约电池性能的进一步提高,而包覆是解决这些问题的有效手段之一。本文重点介绍表面包覆对锂离子电池正极材料性能的影响,总结了各类包覆材料的研究进展,阐述了包覆材料的改性机理,并提出正极材料包覆的未来发展趋势,包括继续寻找性能优良的包覆材料,深入探讨包覆机理,以及进一步优化包覆工艺等。
The properties of cathode materials play an important role in the development and application for lithium ion batteries.However,their phase transition,low conductivity and side reaction with electrolyte restrict the further improvement of battery performance.Coating is one of the effective techniques to overcome these problems.This paper focuses on the influence of surface coating on the properties of cathode materials for lithium ion batteries.The research progress of various coating materials was summarized.The modification mechanism of coating materials was also elaborated.And the future development trend of coating materials was proposed,for example,exploring continuously new coating materials with excellent performance,investigating in depth coating mechanism,and optimizing further coating technologies.
作者
李高锋
李智敏
宁涛
张茂林
闫养希
向黔新
LI Gao-feng;LI Zhi-min;NING Tao;ZHANG Mao-lin;YAN Yang-xi;XIANG Qian-xin(School of Advanced Materials and Nanotechnology, Xidian University,Xi’an 710071,China;Guizhou Zhenhua E-chen Co.,Ltd.,Guiyang 550016,China)
出处
《材料工程》
EI
CAS
CSCD
北大核心
2018年第9期23-30,共8页
Journal of Materials Engineering
基金
国家自然科学基金资助项目(61701369
51602240)
陕西省自然科学基础研究计划(2017JQ5112)
关键词
锂离子电池
正极材料
包覆
电化学性能
lithium ion battery
cathode material
coating
electrochemical performance
