Synthesis and characterization of LiNi0.8Co0.2O2 as cathode material for lithium-ion batteries by a spray-drying method

被引：18
|
作者：
Wu, H. M. [1 ]
Tu, J. P. [1 ]
Chen, X. T. [1 ]
Yuan, Y. F. [1 ]
Li, Y. [1 ]
Zhao, X. B. [1 ]
Cao, G. S. [1 ]
机构：
[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2006年 / 159卷 / 01期
关键词：
LiNi0.8Co0.2O2; spray-drying method; lithium-ion batteries; electrochemical characteristics;
D O I：
10.1016/j.jpowsour.2006.04.032
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Layered structure LiNi0.8CO0.2O2 cathode material for lithium-ion batteries was synthesized by sintering the precursor, which was obtained from the corresponding metal acetate solution via a spray-drying method. The structure, morphology and reaction mechanism of the powders were characterized by means of XRD, SEM and TG-DTA. The electrochemical properties of the LiNi0.8CO0.2O2 cathode were also investigated by using a coin-type cell containing Li metal as the anode in a potential range of 3.0-4.3 V. Upon sintering the spray-dried powders at 750 degrees C for 24 h, the LiNi0.8CO0.2O2 particles obtained are fine, narrowly distributed and well crystallized. As a result, the synthesized LiNi0.8CO0.2O2 has excellent electrochemical properties. The simple synthesis procedure is time and energy saving, and thus is promising for commercial application. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：291 / 294
页数：4
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