高容量型锂离子电池硅基负极材料的研究  

Research Advances in Silicon-Based Anode Materials of High Capacity Lithium Ion Battery

作　　者：胡社军[1,2] 张苗[1] 侯贤华[1,2] 王洁[1] 李敏[1] 刘祥[3] 

机构地区：[1]华南师范大学物理与电信工程学院,广东广州510006 [2]电化学储能材料与技术教育部工程研究中心,广东广州510006 [3]南京工业大学先进材料研究院,江苏南京210000

出　　处：《华南师范大学学报（自然科学版）》2013年第6期68-74,共7页Journal of South China Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(51201066;51171065);广东省自然科学基金重点项目(S2012020010937);广东高校优秀青年创新人才培育项目(2012LYM_0048)

摘　　要：硅基负极材料由于具有高容量而被广泛研究,该材料在充/放电过程中巨大的体积变化、低的循环寿命和初始库仑效率阻碍了其商业化应用.在作者多年从事硅基负极材料的研究基础上,分析了硅基负极材料的工作原理,回顾了Si负极在脱/嵌锂过程中的晶体结构、表面/界面的变化以及提高其电化学性能的方法,讨论了锂离子电池硅基负极材料的前景.Due to its high capacity, silicon based anode materials have been widely studied in recent years. How- ever,the commercialization of silicon-based materials as the anode of lithium-ion batteries（LIBs） has been hindered by the huge volume change, poor cycle life and low initial eoulombic efficiency during the charge/discharge process. This article analyses the insertion/interinsertion lithium ion principle of silicon anodes, reviews the change of the crystal structure and the surface/interface of Si-based material during the intercalation/deintercalation of lith- ium, and the methods for improving the electrochemical performance. The prospects of silicon-based materials as the anode of LIBs are also discussed.

关 键 词：硅基材料 负极材料 高容量型锂离子电池 

分 类 号：TM912.2[电气工程—电力电子与电力传动]