Investigation on structure and electrochemical properties of Li[Ni1/3Co1/3Mn1/3]O2 for lithium ion batteries

被引：0
|
作者：
Shi, Xiujuan [1 ]
Zheng, Yongping [1 ]
Kang, Feiyu [1 ]
Li, Xinlu [1 ]
Shen, Wanci [1 ]
机构：
[1] Tsinghua Univ, Dept Mat Sci & Engn, Adv Mat Lab, Beijing 100084, Peoples R China
来源：
HIGH-PERFORMANCE CERAMICS IV, PTS 1-3 | 2007年 / 336-338卷
关键词：
Li[Ni1/3Co1/3Mn1/3]O-2; cathode material; lithium-ion batteries;
D O I：
10.4028/www.scientific.net/KEM.336-338.455
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Cathode material Li[Ni1/3Co1/3Mn1/3]O-2 for lithium-ion batteries with layered hexagonal structure was successfully synthesized in sol-gel way. The influences of calcination temperature (from 700 degrees to 1000 degrees C) on the structure and electrochemical behaviors of Li[Ni1/3Co1/3Mn1/3]O-2 were extensively investigated. The results of XRD show that all samples are isostructural with alpha-NaFeO2 with a space group R-3m. XPS analysis shows that the oxidation states of Co and Mn were Co3+ and Mn4+ respectively, while Ni exists as Ni2+ and Ni3+. The charge-discharge experiments show that the sample calcined at 850 degrees C delivers 194.8mAh/g in the first cycle at C/5 rate in 2.5-4.3V potential range.
引用
收藏
页码：455 / +
页数：2
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