Properties of Cathode Materials LiNi0.5Co0.2Mn0.3O2 in Li-Ion Batteries Assisted by Surfactants

被引：0
作者：
Wu T. [1 ]
Zhang Z. [1 ]
Wang Z. [1 ]
Sun D. [1 ]
Guo W. [1 ]
Xu S. [1 ]
机构：
[1] School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming
来源：
Zhang, Zhengfu (zhang-zhengfu@163.com) | 1600年 / Editorial Office of Chinese Journal of Rare Metals卷 / 41期
关键词：
Cathode materials; Lithium-ion battery; Nanoplates; Surfactants;
D O I：
10.13373/j.cnki.cjrm.XY16050037
中图分类号：
学科分类号：
摘要：
The cathode material precursor (Ni0.5Co0.2Mn0.3(OH)2) was synthesised by using co-precipitation method assisted by surfactants, supersonic vibration and stirring. Then the ternary layered cathodematerial (LiNi0.5Co0.2Mn0.3O2) was prepared by calcining the mixture of nanoplates precursor and lithium carbonate (Li2Co3). The cathode material and its precursor were analyzed by X-ray diffractometry (XRD), transmission electron microscope (TEM), scanning electron microscope (SEM), inductively coupled plasma optical emission spectrometry (ICP-OES) and electrochemical tests. The results showed that the precursor exhibited a regular hexagon nanoplates with average size of 400 nm; the prepared cathode material which was assisted by OA and PVP-K30 had excellent electrochemical properties, and the initial discharge capacities were 151.699 and 157.093 mAh·g-1, respectively, when they were charged and discharged at 1C within 2.0~4.5 V. The specific capacity retention rate was 88.22% and 99.04% respectively after 50 cycles. © Editorial Office of Chinese Journal of Rare Metals. All right reserved.
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页码：1105 / 1111
页数：6
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