Li_4Ti_5O_(12)纳米片的合成及储锂性能研究

doi:10.61558/2993-074X.2036

摘要/Abstract

摘要： 以无定形的水合二氧化钛为前驱物,水热法合成了200～400nm大小的Li4Ti5O12纳米片作为锂离子电池负极材料.XRD(X射线衍射)、SEM(扫描电子显微镜)和TEM(透射电镜)分析表征样品的物相结构、表观形貌;循环伏安、充放电循环和电化学交流阻抗技术分别测定该纳米Li4Ti5O12在有机电解液和室温离子液体S114TFSI电解液中的电化学性能.结果表明,该材料具有较高的放电容量和良好的循环性能,有望成为锂二次电池新型负极材料.

关键词: Li4Ti5O12, 纳米片, 离子液体, 电解液, 锂离子电池

Abstract: Spinel lithium titanate(Li4Ti5O12) nanosheets with a size range of 200 ～400 nm were synthesized by hydrothermal process from the amorphous hydrous titanium oxide precursors.The as-prepared products were characterized by X-ray powder diffraction(XRD),scanning electron microscopy(SEM) and transmission electron microscopy(TEM).The electrochemical behaviors of Li4Ti5O12 electrode in conventional organic electrolyte and ionic liquid electrolyte were investigated by using cyclic voltammetry,galvanostatic charge-discharge and AC impedance techniques.The experimental results indicate that the as-prepared nanostructured Li4Ti5O12,evaluated as anode material,exhibited good reversibility and cycle performance.It is expected to be a potential anode material for commerical battery applications.

Key words: Li4Ti5O12, nanosheet, ionic liquid, electrolyte, lithium ion battery

中图分类号:

TM912

王怡菲, 唐宇峰, 仇征, 杨立, . Li_4Ti_5O_(12)纳米片的合成及储锂性能研究[J]. 电化学（中英文）, 2010, 16(1): 46-50.

WANG Yi-fei, TANG Yu-feng, QIU Zheng, YANG Li. Preparation and Electrochemical Behavior of Li_4Ti_5O_(12) Nanosheets as Anode Material for Lithium Ion Battery[J]. Journal of Electrochemistry, 2010, 16(1): 46-50.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.61558/2993-074X.2036

https://electrochem.xmu.edu.cn/CN/Y2010/V16/I1/46

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