摘要
硅基材料因具有高比容量的特点成为新一代高容量锂离子电池的负极材料,但其在锂离子脱嵌锂过程中存在严重的体积效应,降低了电池的循环稳定性和初始库伦效率,从而限制了其商业化应用。本文综述了近几年来锂离子电池硅基负极材料的主要改性方法和研究进展,阐述了硅基材料作为锂离子电池负极材料存在的问题,并指出其未来的发展方向。
Silicon-based materials are promising anode materials for high-capacity lithium-ion batteries for their high specific capacities.However,their commercial applications are limited by their serious volume expansion/contraction during lithium insertion/desertion,low cycle stability and low initial coulombic efficiency.In this paper,the main modification methods and research progress of silicon-based anode materials for lithium-ion batteries are reviewed.The existing problems of silicon-based materials as lithiumion anode materials are expounded,and the future prospects of silicon-basedanodes are also described.
作者
黄志东
李子坤
杨书展
任建国
黄友元
贺雪琴
Huang Zhi-dong;Li Zi-kun;Yang Shu-zhan;Ren Jian-guo;Huang You-yuan;He Xue-qin(Technology Department of Supply Chain,Shenzheng BTR New Materials Group Co.,Ltd.,Guangdong Shenzhen 518106,China)
出处
《炭素技术》
CAS
北大核心
2020年第3期1-5,14,共6页
Carbon Techniques
关键词
锂离子电池
负极
硅基材料
Lithium-ion battery
anode
silicon-based material
