亚微米Li_4Ti_5O_(12)材料的电化学性能研究

doi:10.61558/2993-074X.1898

电化学（中英文） ›› 2008, Vol. 14 ›› Issue (3): 238-242. doi: 10.61558/2993-074X.1898

亚微米Li_4Ti_5O_(12)材料的电化学性能研究

杜晨树;杨化滨;周作祥;吴孟涛;黄来和;徐宁;

南开大学新能源材料化学研究所;天津巴莫科技股份有限公司;

收稿日期:2008-08-28 修回日期:2008-08-28 出版日期:2008-08-28 发布日期:2008-08-28

Electrochemical Properties of Sub-micron Li_4Ti_5O_(12) Powders

DU Chen-shu1,YANG Hua-bin1,ZHOU Zuo-xiang1,WU Meng-tao2,HUANG Lai-he2,XU Ning2

(1.Institute of New Energy Material Chemistry,Nankai University,Tianjin 300071,China;2.Tianjin B&M Science Technology Joint-Stock Co LTD,Tianjin 300384,China

Received:2008-08-28 Revised:2008-08-28 Published:2008-08-28 Online:2008-08-28

摘要/Abstract

摘要： 应用改进固相合成法制备亚微米Li4Ti5O12锂离子电池材料.X射线衍射(XRD)、扫描电镜(SEM)和激光粒度分析分别显示:物相单一且粒度均匀,D50为0.886μm,属于亚微米级材料.合适的粒度和分布使得该材料展示出优良的电化学性能,以其装配的半电池中,0.1C首次放电容量为165 mAh/g,5C时放电容量可达107 mAh/g,10C时仍可达到54 mAh/g.

关键词: 钛酸锂, 固相合成, 亚微米, 倍率性能

Abstract: The sub-micronmeteric Li4Ti5O12 powder material was successfully prepared through an improved solid-state synthesis process.The results of X-ray diffraction(XRD),scanning electron microscopy(SEM) and laser particle size distribution analysis showed that only a single spinel phase and a normal distribution pattern with the average size(D50) of 0.886μm could be observed.Due to the suitable partical size distribution,the Li4Ti5O12 powders showed a promising electrochemical performance.At the discharge current densities of 0.1C(16.5 mAh/g) and 5C,the discharge capacities reached 165 mAh/g and 107 mAh/g,respectively.Even at 10C,it still reached 54 mAh/g.

Key words: lithium titanate, solid-state synthesis method, sub-micronmeter, high rate performance

中图分类号:

O614.111

杜晨树, 杨化滨, 周作祥, 吴孟涛, 黄来和, 徐宁, . 亚微米Li_4Ti_5O_(12)材料的电化学性能研究[J]. 电化学（中英文）, 2008, 14(3): 238-242.

DU Chen-shu, YANG Hua-bin, ZHOU Zuo-xiang, WU Meng-tao, HUANG Lai-he, XU Ning. Electrochemical Properties of Sub-micron Li_4Ti_5O_(12) Powders[J]. Journal of Electrochemistry, 2008, 14(3): 238-242.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.61558/2993-074X.1898

https://electrochem.xmu.edu.cn/CN/Y2008/V14/I3/238

参考文献

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亚微米Li_4Ti_5O_(12)材料的电化学性能研究

Electrochemical Properties of Sub-micron Li_4Ti_5O_(12) Powders

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