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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
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
Volume695Pages:3393-3401
SubtypeArticle
AbstractHigh 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.
KeywordLini0.5mn1.5o4 Cathode Material Hydrothermal Post-calcination Lithium Ion Batteries
DOI10.1016/j.jallcom.2016.12.022
Indexed BySCI
Language英语
WOS IDWOS:000391818100058
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/136270
Collection海洋环境腐蚀与与生物污损重点实验室
Affiliation1.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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GB/T 7714
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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