摘要
镍锰酸锂(LiNi_(0.5)Mn_(1.5)O_(4))正极材料因具有电压高、循环性能高、结构稳定等优点,被认为是下一代锂离子动力电池的正极材料首选。在综述LiNi_(0.5)Mn_(1.5)O_(4)正极材料晶体结构和电化学性能的基础上,重点阐述了两种提高镍锰酸锂材料结构稳定性、容量保持率的改性方法——元素掺杂和表面包覆。最后,指出了今后LiNi_(0.5)Mn_(1.5)O_(4)正极材料研究的重点及发展趋势。
Lithium nickel manganese oxide(LiNi_(0.5)Mn_(1.5)O_(4))has been considered as the promising cathode material for the next generation lithium-ion power battery due to its excellent performances such as the high voltage,the high cycle performance and the stable structure.In this paper,the crystal structure and the electrochemical properties of LiNi_(0.5)Mn_(1.5)O_(4)cathode materials are reviewed,and two modification methods(elemental doping and surface coating)to improve the structural stability and capacity retention of LiNi_(0.5)Mn_(1.5)O_(4)cathode materials are emphasized.Finally,the research emphasis and the development trend of LiNi_(0.5)Mn_(1.5)O_(4)cathode materials in the future are pointed out.
作者
陈孟
陈朝轶
李军旗
杨凡
徐颖鹏
CHEN Meng;CHEN Chaoyi;LI Junqi;YANG Fan;XU Yingpeng(College of Materials and Metallurgy,Guizhou University,Guiyang 550025,China;School of Metallurgy and Environment,Central South University,Changsha 410083,China)
出处
《电子元件与材料》
CAS
CSCD
北大核心
2021年第9期833-839,865,共8页
Electronic Components And Materials
