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Study on oxygen deficiency in spinel LiNi0.5Mn1.5O4 and its Fe and Cr-doped compounds
Liu, Guoqiang; Zhang, Jingyi; Zhang, Xiaohui; Du, Yulong; Zhang, Kai; Li, Guocheng; Yu, Han; Li, Chuanwen; Li, Zaiyuan; Sun, Qiang; Wen, Lei; Liu, GQ (reprint author), Northeastern Univ, Sch Met & Mat, Shenyang 110819, Liaoning, Peoples R China.; Wen, L (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
2017-11-25
Source PublicationELSEVIER SCIENCE SA
ISSN0925-8388
Volume725Pages:580-586
AbstractThe oxygen deficiency is an important factor to affect the electrochemical properties of spinel LiNi0.5Mn1.5O4. In this study, we investigated how oxygen deficiency in spinel LiNi0.5Mn1.5O4 was affected by calcination temperature and oxygen partial pressure. The oxygen deficiency as a function of calcination temperatures has been modeled. Doping elements have influence on oxygen deficiency. The oxygen dissipation of Cr-doped compounds LiNi0.45Cr0.1Mn1.45O4 at high temperature is less than pristine LiNi0.5Mn1.5O4. Under the same calcination and cooling condition, there more oxygen deficiency remained in Fe and Cr-doped compounds than in pristine LiMn1.5Ni0.5O4. The coulomb efficiencies of LiNi0.45Cr0.1Mn1.45O4 in the first charge and discharge cycle reached a high value of 89.1%. (C) 2017 Elsevier B.V. All rights reserved.; The oxygen deficiency is an important factor to affect the electrochemical properties of spinel LiNi0.5Mn1.5O4. In this study, we investigated how oxygen deficiency in spinel LiNi0.5Mn1.5O4 was affected by calcination temperature and oxygen partial pressure. The oxygen deficiency as a function of calcination temperatures has been modeled. Doping elements have influence on oxygen deficiency. The oxygen dissipation of Cr-doped compounds LiNi0.45Cr0.1Mn1.45O4 at high temperature is less than pristine LiNi0.5Mn1.5O4. Under the same calcination and cooling condition, there more oxygen deficiency remained in Fe and Cr-doped compounds than in pristine LiMn1.5Ni0.5O4. The coulomb efficiencies of LiNi0.45Cr0.1Mn1.45O4 in the first charge and discharge cycle reached a high value of 89.1%. (C) 2017 Elsevier B.V. All rights reserved.
description.department[liu, guoqiang ; zhang, jingyi ; zhang, xiaohui ; du, yulong ; zhang, kai ; li, guocheng ; yu, han ; li, chuanwen ; li, zaiyuan ; sun, qiang] northeastern univ, sch met & mat, shenyang 110819, liaoning, peoples r china ; [wen, lei] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china
KeywordOxygen Deficiency Spinel Lini0.5mn1.5o4 Doping Elements Synthesis Electrochemical Properties
Subject AreaChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China [51574081]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78970
Collection中国科学院金属研究所
Corresponding AuthorLiu, GQ (reprint author), Northeastern Univ, Sch Met & Mat, Shenyang 110819, Liaoning, Peoples R China.; Wen, L (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Liu, Guoqiang,Zhang, Jingyi,Zhang, Xiaohui,et al. Study on oxygen deficiency in spinel LiNi0.5Mn1.5O4 and its Fe and Cr-doped compounds[J]. ELSEVIER SCIENCE SA,2017,725:580-586.
APA Liu, Guoqiang.,Zhang, Jingyi.,Zhang, Xiaohui.,Du, Yulong.,Zhang, Kai.,...&Wen, L .(2017).Study on oxygen deficiency in spinel LiNi0.5Mn1.5O4 and its Fe and Cr-doped compounds.ELSEVIER SCIENCE SA,725,580-586.
MLA Liu, Guoqiang,et al."Study on oxygen deficiency in spinel LiNi0.5Mn1.5O4 and its Fe and Cr-doped compounds".ELSEVIER SCIENCE SA 725(2017):580-586.
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