锂离子电池纳米级硅负极的研究进展  

Research progress of nano-silicon based anode materials for lithium ion batteries

作　　者：周向阳[1] 唐晶晶[1] 杨娟[1] 王松灿[1] 谢静[1] 

机构地区：[1]中南大学冶金科学与工程学院,湖南长沙410083

出　　处：《电源技术》2012年第8期1221-1224,共4页Chinese Journal of Power Sources

基　　金：国家自然科学基金资助项目(51074185)

摘　　要：硅基材料是新一代高容量锂离子电池负极材料的典型代表,近年来已成为理论和应用研究的热点。纳米硅基负极材料因具有独特的表面效应和尺寸效应等优点,可大大改善硅作为负极时所存在的循环性能,有望解决限制硅负极成为替代商业化石墨负极的瓶颈问题。介绍了近年来纳米级硅负极作为锂离子电池负极材料的最新研究进展,包括纳米硅颗粒、硅纳米线、硅纳米管及纳米硅薄膜,分析了纳米硅作为锂离子电池负极材料存在的问题,总结了纳米级硅作为锂离子电池负极较为可行的研究方法,展望了纳米硅作为高能量密度锂离子电池负极材料的研究前景。Silicon-based materials have been extensively studied as the typical representation of high capacity anode materials in lithium-ion batteries. Nano-silicon based anodes have been investigated as possible substitute for the commercial graphite or carbon due to their unique surface effect and size effect. The nano-silicon based anode materials in recent years were reviewed, including nano-silicon powder, silicon nanowires, silicon nanotubes and nanosized silicon thin film. The prospects for high energy density lithium ion batteries anode materials were also discussed. The feasible research methods for the nanoscale silicon as anode materials were summarized. The new material for lithium-ion batteries would be promising if some problems can be solved.

关 键 词：锂离子电池 负极材料 纳米硅 

分 类 号：TM912[电气工程—电力电子与电力传动]