Enhancing the electrochemical performances of LiNi0.5Mn1.5O4 by Co3O4 surface coating

doi:10.1016/j.jallcom.2018.05.245

	Enhancing the electrochemical performances of LiNi0.5Mn1.5O4 by Co3O4 surface coating
	Deng, Miao-Miao ; Tang, Zhong-Feng ; Shao, Yu ; He, Xiao-Dong ; Wen, Zhao-Yin ; Chen, Chun-Hua
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2018
卷号	762 页码:163
关键词	Electrode materials Batteries Electrochemical performance Cobalt oxide Lithium nickel manganese oxide
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2018.05.245
英文摘要	A Co3O4 coating is formed on the surface of LiNi0.5Mn1.5O4 particles via an ethanol mediated precipitation method. The existence of the uniform Co3O4 coating is clearly observed by scanning electron microscopy and transmission electron microscopy. The results of electrochemical performance testing prove that the Co3O4 coating can greatly enhance the cycling stability and rate performance of LiNi0.5Mn1.5O4. The optimal sample 5% Co3O4-coated LiNi0.5Mn1.5O4 delivers a discharge capacity 126 mAh g(-1) at 1 C rate with a capacity retention 96.8% after 300 cycles and a high discharge capacity 97.5 mAh g(-1) at 10 C rate. The causes to the improvement are discussed based on elemental analysis, X-ray photoelectron spectroscopy and electrochemical impedance spectroscopy. (C) 2018 Elsevier B.V. All rights reserved.
学科主题	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000436600000022
资助机构	This study was supported by National Science Foundation of China (grant no. 51577175), NSAF (grant no. U1630106), Hefei Center of Materials Science and Technology (2014FXZY006) and Education Ministry of Anhui Province (KJ2014ZD36). We are also grateful to Elementec Ltd in Suzhou. ; This study was supported by National Science Foundation of China (grant no. 51577175), NSAF (grant no. U1630106), Hefei Center of Materials Science and Technology (2014FXZY006) and Education Ministry of Anhui Province (KJ2014ZD36). We are also grateful to Elementec Ltd in Suzhou.
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24669]
专题	中国科学院上海硅酸盐研究所
作者单位	1.[Deng, Miao-Miao 2.Tang, Zhong-Feng 3.Shao, Yu 4.He, Xiao-Dong 5.Univ Sci & Technol China, Dept Mat Sci & Engn, CAS Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China 6.[Deng, Miao-Miao 7.Tang, Zhong-Feng 8.Shao, Yu 9.He, Xiao-Dong 10.Univ Sci & Technol China, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Deng, Miao-Miao,Tang, Zhong-Feng,Shao, Yu,et al. Enhancing the electrochemical performances of LiNi0.5Mn1.5O4 by Co3O4 surface coating[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,762:163, 170.
APA	Deng, Miao-Miao,Tang, Zhong-Feng,Shao, Yu,He, Xiao-Dong,Wen, Zhao-Yin,&Chen, Chun-Hua.(2018).Enhancing the electrochemical performances of LiNi0.5Mn1.5O4 by Co3O4 surface coating.JOURNAL OF ALLOYS AND COMPOUNDS,762,163.
MLA	Deng, Miao-Miao,et al."Enhancing the electrochemical performances of LiNi0.5Mn1.5O4 by Co3O4 surface coating".JOURNAL OF ALLOYS AND COMPOUNDS 762(2018):163.