摘要
硅基材料由于其高电化学容量是一种非常有发展前途的锂离子电池负极材料,但其在充放电过程中体积变化大、循环寿命差、首次库仑效率低等是阻碍其商业化的主要问题。本文综述了硅在脱嵌锂时晶体结构及表/界面的变化,以及改善其电化学性能方面的研究进展,并阐述其作为锂离子电池负极材料的研究前景。
Silicon-based materials are promising anode materials for lithium-ion batteries （LIBs） due to their high-energy capacity. However, the commercialization of silicon-based materials as the anode of LIBs has been hindered by the huge volume change, poor cycle life and low initial coulombic efficiency during the charge/ discharge process. This article reviews the change of both the crystal structure and the surface/interface of Si-based material during the intercalation/deintercalation of lithium, and the methods improving the electrochemical performance. In addition, the prospects of silicon-based materials as the anode of LIBs are also discussed.
出处
《化学进展》
SCIE
CAS
CSCD
北大核心
2011年第2期318-327,共10页
Progress in Chemistry
基金
国家自然科学基金项目(No.21076108)
教育部创新团队项目(No.IRT0927)
天津市应用基础及前沿技术研究计划项目(No.08JCZDJC21300
10JCYBJC08400)资助
关键词
硅基材料
负极
锂离子电池
silicon-based materials
anode materials
lithium ion batteries
