IMR OpenIR
Study on the action mechanism of doping transitional elements in spinel LiNi0.5Mn1.5O4
Liu, Guoqiang; Du, Yulong; Liu, Wenbin; Wen, Lei; Liu, GQ (reprint author), Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China.
2016-08-10
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume209Pages:308-314
AbstractSpinel LiNi0.5Mn1.5O4 is a very important and promising cathode material for lithium ion batteries. The strategy of doping elements is a common used way to improve its electrochemical properties. The action mechanism of doping elements in LiNi0.5Mn1.5O4 is complex. In this study, we synthesized the Cr, Fe-doped compounds LiNi0.45M0.1Mn1.45O4 (M = Cr, Fe) and pristine compound LiNi0.5Mn1.5O4 at the same annealing conditions. The as prepared samples display different morphological features. The thermogravimetric analysis shows different situation for these samples. Oxygen dissipation in the Cr-doped compound at high temperature is less than the other two samples. The XPS spectra display that the doping elements have influences on the chemical valence of Ni, and result in more Ni(III) amount in the Cr, Fe-doped products. The doped compounds exhibit excellent rate capability. At 10C-charge/10C-discharge rate, their capacities are 85 mAh g(-1), 74 mAh g(-1) and 50 mAh g(-1) for LiNi0.45Fe0.1Mn1.45O4, LiNi0.45Cr0.1Mn1.45O4 and LiNi0.5Mn1.5O4, respectively. (C) 2016 Elsevier Ltd. All rights reserved.
description.department[liu, guoqiang ; du, yulong ; liu, wenbin] northeastern univ, sch met, shenyang 110819, peoples r china ; [liu, guoqiang] nankai univ, key lab adv energy mat chem, minist educ, tianjin 300071, peoples r china ; [wen, lei] chinese acad sci, inst met res, shenyang 110016, peoples r china
KeywordLi-ion Battery Cathode High-voltage Doping Elements Electrochemical Performance
Subject AreaElectrochemistry
Funding OrganizationNatural Science Foundation of Liaoning Province [2014020035]; National Natural Science Foundation of China [51574081]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75773
Collection中国科学院金属研究所
Corresponding AuthorLiu, GQ (reprint author), Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China.
Recommended Citation
GB/T 7714
Liu, Guoqiang,Du, Yulong,Liu, Wenbin,et al. Study on the action mechanism of doping transitional elements in spinel LiNi0.5Mn1.5O4[J]. ELECTROCHIMICA ACTA,2016,209:308-314.
APA Liu, Guoqiang,Du, Yulong,Liu, Wenbin,Wen, Lei,&Liu, GQ .(2016).Study on the action mechanism of doping transitional elements in spinel LiNi0.5Mn1.5O4.ELECTROCHIMICA ACTA,209,308-314.
MLA Liu, Guoqiang,et al."Study on the action mechanism of doping transitional elements in spinel LiNi0.5Mn1.5O4".ELECTROCHIMICA ACTA 209(2016):308-314.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liu, Guoqiang]'s Articles
[Du, Yulong]'s Articles
[Liu, Wenbin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu, Guoqiang]'s Articles
[Du, Yulong]'s Articles
[Liu, Wenbin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu, Guoqiang]'s Articles
[Du, Yulong]'s Articles
[Liu, Wenbin]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.