物理化学学报2017，Vol.33Issue(12)：2517-2522,6.DOI:10.3866/PKU.WHXB201706162
AlN-Fe纳米复合薄膜:一种新型锂离子电池负极材料
AlN-Fe Nanocomposite Thin Film: A New Anode Material for Lithium-lon Batteries
摘要
Abstract
AlN-Fe nanocomposite thin films with different AlN-Fe ratio were prepared by pulsed laser deposition (PLD). They were investigated as new anode materials for lithium ion batteries for the first time. The AlN-Fe nanocomposite films with an AlN/Fe ratio of 2 : 1 show the best electrochemical performance. They exhibit a specific capacity of 510 mA·g?1 after 100 cycles at a rate of 500 mA·g?1. Further, the study of the electrochemical reaction mechanism of the AlN-Fe nanocomposite thin films with lithium reveals that AlN decomposes during the discharge process to form the LiAl alloy and Li3N. During recharge, a part of Li3N reacts with Fe to form Fe3N, and the rest reacts with Al to form AlN. In subsequent cycles, al of Fe3N, AlN, and Al react with Li reversibly, contributing to the reversible charge-discharge processes and to the superior electrochemical performance of AlN-Fe nanocomposite thin films. Thus, this study provides a new perspective to design advanced electrode materials for lithium-ion batteries.关键词
锂离子电池/负极材料/氮化铝/薄膜/脉冲激光沉积Key words
Lithium-ion battery/Anode material/Aluminium nitride/Thin film/Pulsed laser deposition分类
化学化工引用本文复制引用
牛晓叶,杜小琴,王钦超,吴晓京,张昕,周永宁..AlN-Fe纳米复合薄膜:一种新型锂离子电池负极材料[J].物理化学学报,2017,33(12):2517-2522,6.基金项目
The project was supported by the National Natural Science Foundation of China (51502039).国家自然科学基金(51502039)资助项目 （51502039）
