无机材料学报2011，Vol.26Issue(4)：443-448,6.DOI:10.3724/SP.J.1077.2011.10734
锂离子电池负极材料钼掺杂钛酸锂的制备及电化学表征
Preparation and Effects of Mo-doping on the Electrochemical Properties of Spinel Li4Ti5O12 as Anode Material for Lithium Ion Battery
张新龙 1胡国荣 1彭忠东1
作者信息
- 1. 中南大学冶金科学与工程学院,长沙,410083
- 折叠
摘要
Abstract
Mo-doped Li4Ti5O12 in the form of Li4Ti4.95Mo0.05O12 was synthesized via solid state reaction. X-ray diffraction (XRD) and scanning electron microscope (SEM) were employed to characterize the structure and morphology of Li4Ti4.95Mo0.05O12. Mo-doping does not change the phase composition and particle morphology, while improves remarkably its cycling stability at high charge/discharge rate. Li4Ti4.95Mo0.05O12 exhibits an excellent rate capability with a reversible capacity of 117.03 mAh/g at 10C and even 94.24 mAh/g at 30C. The substitution of Mo for Ti site can enhance the electronic conductivity of Li4Ti5O12 via the generation of mixing Ti4+/Ti3+, which indicates that Li4Ti4.95Mo0.05O12 is a promising as a high rate anode for the lithium-ion batteries.关键词
锂离子电池/钛酸锂/负极材料/掺杂Key words
lithium-ion batteries/lithium titanate/anode materials/doping分类
信息技术与安全科学引用本文复制引用
张新龙,胡国荣,彭忠东..锂离子电池负极材料钼掺杂钛酸锂的制备及电化学表征[J].无机材料学报,2011,26(4):443-448,6.
