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Rapid hydrothermal and post-calcination synthesis of well-shaped LiNi0.5Mn1.5O4 cathode materials for lithium ion batteries
Zhao, Erqing1; Wei, Liu1,2; Guo, Yudi3; Xu, Yongji2; Yan, Wenchao1,4; Sun, Deye1; Jin, Yongcheng1
2017-02-25
发表期刊JOURNAL OF ALLOYS AND COMPOUNDS
卷号695页码:3393-3401
文章类型Article
摘要High voltage spinel LiNi0.5Mn1.5O4 (LNMO) cathode materials with well-developed polyhedral-shape structure have been successfully synthesized via a rapid hydrothermal process followed by high-temperature calcination with Li source. The as-synthesized samples were characterized by powder X-ray diffraction, Raman spectroscopy, Scanning electron microscopy and electrochemical test. All samples show polyhedral-shape morphologies as well as cubic spinel structure with Fd3m space group. Electrochemical analysis verifies that the spinel LNMO cathode prepared with sulfate at hydrothermal temperature of 200 degrees C exhibits the better electrochemical properties in terms of discharge capacity, cycling stability and rate performance. This sample delivers an initial discharge capacity of 131.1 mAh g(-1) at 0.5 C rate at 25 degrees C, with the capacity retention of 85.2% after 100 charge-discharge cycles. Additionally, it still shows high rate performance with a discharge capacity of 110.9 mAh g(-1) even at 20 C rate. The excellent electrochemical properties are mainly attributed to its high crystallinity, appropriate particle size and uniform particle size distribution. These results suggest that the rapid hydrothermal and post-calcination method is an effective way for preparing high voltage LNMO cathode materials which can be applied to lithium ion batteries. (C) 2016 Elsevier B.V. All rights reserved.
关键词Lini0.5mn1.5o4 Cathode Material Hydrothermal Post-calcination Lithium Ion Batteries
DOI10.1016/j.jallcom.2016.12.022
收录类别SCI
语种英语
WOS记录号WOS:000391818100058
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/136270
专题海洋腐蚀与防护研究发展中心
作者单位1.Chinese Acad Sci, Qingdao Key Lab Solar Energy Utilizat & Energy St, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
2.Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Qingdao 66042, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Zhao, Erqing,Wei, Liu,Guo, Yudi,et al. Rapid hydrothermal and post-calcination synthesis of well-shaped LiNi0.5Mn1.5O4 cathode materials for lithium ion batteries[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,695:3393-3401.
APA Zhao, Erqing.,Wei, Liu.,Guo, Yudi.,Xu, Yongji.,Yan, Wenchao.,...&Jin, Yongcheng.(2017).Rapid hydrothermal and post-calcination synthesis of well-shaped LiNi0.5Mn1.5O4 cathode materials for lithium ion batteries.JOURNAL OF ALLOYS AND COMPOUNDS,695,3393-3401.
MLA Zhao, Erqing,et al."Rapid hydrothermal and post-calcination synthesis of well-shaped LiNi0.5Mn1.5O4 cathode materials for lithium ion batteries".JOURNAL OF ALLOYS AND COMPOUNDS 695(2017):3393-3401.
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