您目前所在的位置:首页 - 期刊简介 - 详细页面

铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 19    No. 6    December 2009

[PDF Download]    [Flash Online]

    

Synthesis and electrochemical performances of LiNi0.6Co0.2Mn0.2O2 cathode materials
ZHONG Sheng-kui(钟胜奎)1, 2, LI Wei(李 伟)1, LI Yan-hong(李艳红)3,
ZUO Zheng-guang(邹正光)1, 2, TANG Xin(唐 鑫)1, 2

1. Department of Material and Chemistry, Guilin University of Technology, Guilin 541004, China;
2. Key Laboratory of New Processing Technology for Nonferrous Metals and Materials,
Ministry of Education, Guilin University of Technology, Guilin 541004, China

Abstract:LiNi0.6Co0.2Mn0.2O2 was prepared from LiOH·H2O and MCO3 (M=Ni, Co, Mn) by co-precipitation and subsequent heating. XRD, SEM and electrochemical measurements were used to examine the structure, morphology and electrochemical characteristics, respectively. LiNi0.6Co0.2Mn0.2O2 samples show excellent electrochemical performances. The optimum sintering temperature and sintering time are 850 ℃ and 20 h, respectively. The LiNi0.6Co0.2Mn0.2O2 shows the discharge capacity of 148 mA∙h/g in the range of 3.0−4.3 V at the first cycle, and the discharge capacity remains 136 mA∙h/g after 30 cycles. The carbonate co-precipitation method is suitable for the preparation of LiNi0.6Co0.2Mn0.2O2 cathode materials with good electrochemical performance for lithium ion batteries.

 

Key words: lithium ion batteries; LiNi0.6Co0.2Mn0.2O2; cyclic voltammogram (CV)

ISSN 1672-7029
CN 43-1423/U

主管:中华人民共和国教育部 主办:中南大学 中国铁道学会 承办:中南大学
湘ICP备09001153号 版权所有:《铁道科学与工程学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市韶山南路22号 邮编:410075
电 话:0731-82655133,82656174   传真:0731-82655133   电子邮箱:jrse@mail.csu.edu.cn