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College of Engineering(공과대학)Dept. of Materials Science and Engineering(신소재공학과)MS-Journal Papers(저널논문)

Effects of Cl doping on the structural and electrochemical properties of high voltage LiMn1.5Ni0.5O4 cathode materials for Li-ion batteries

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dc.contributor.authorKim, Won Keunko
dc.contributor.authorHan, Dong Wookko
dc.contributor.authorRyu, Won Heeko
dc.contributor.authorLim, Sung Jinko
dc.contributor.authorEom, Ji-Yongko
dc.contributor.authorKwon, Hyuk-Sangko
dc.date.accessioned2014-09-04T08:35:41Z-
dc.date.available2014-09-04T08:35:41Z-
dc.date.created2014-03-17-
dc.date.created2014-03-17-
dc.date.created2014-03-17-
dc.date.issued2014-04-
dc.identifier.citationJOURNAL OF ALLOYS AND COMPOUNDS, v.592, pp.48 - 52-
dc.identifier.issn0925-8388-
dc.identifier.urihttp://hdl.handle.net/10203/190070-
dc.description.abstractLiMn1.5Ni0.5O4 and LiMn1.5Ni0.5O3.9Cl0.1 are prepared by a solution-based process to investigate the influences of Cl doping on the structural and electrochemical properties of high voltage LiMn1.5Ni0.5O4 cathode materials for Li-ion batteries. LiMn1.5Ni0.5O3.9Cl0.1 features an improved cyclic performance at 30 degrees C and 55 degrees C compared with LiMn1.5Ni0.5O4, which originates from the enhanced structural stability by formation of strong Mn-Cl and Ni-Cl bonds revealed by XPS analysis. The improvement in the rate capability of LiMn1.5Ni0.5O3.9Cl0.1 is attributed to the facilitated Li-ion diffusion in the lattice, due primarily to the larger ionic radius of Cl than that of O. From the GITT analysis, it is revealed that the Li-ion diffusivity of LiMn1.5Ni0.5O3.9Cl0.1 is improved about 2 times compared with that of LiMn1.5Ni0.5O4. The improved Li-ion diffusivity in the lattice is assigned to the increase in the lattice constant of LiMn1.5Ni0.5O3.9Cl0.1 compared with that of LiMn1.5Ni0.5O4 by the doping of Cl.-
dc.languageEnglish-
dc.publisherELSEVIER SCIENCE SA-
dc.subjectRECHARGEABLE LITHIUM BATTERIES-
dc.subjectCELLS-
dc.subjectCAPACITY-
dc.subjectLI1+XMN2-XO4-
dc.subjectPERFORMANCE-
dc.subjectLIMN2O4-
dc.titleEffects of Cl doping on the structural and electrochemical properties of high voltage LiMn1.5Ni0.5O4 cathode materials for Li-ion batteries-
dc.typeArticle-
dc.identifier.wosid000331069300008-
dc.identifier.scopusid2-s2.0-84893119106-
dc.type.rimsART-
dc.citation.volume592-
dc.citation.beginningpage48-
dc.citation.endingpage52-
dc.citation.publicationnameJOURNAL OF ALLOYS AND COMPOUNDS-
dc.identifier.doi10.1016/j.jallcom.2013.12.248-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.contributor.localauthorKwon, Hyuk-Sang-
dc.contributor.nonIdAuthorEom, Ji-Yong-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorLiMn1.5Ni0.5O4-
dc.subject.keywordAuthorChlorine doping-
dc.subject.keywordAuthorHigh voltage cathode-
dc.subject.keywordAuthorLi-ion diffusivity-
dc.subject.keywordAuthorLi-ion batteries-
dc.subject.keywordAuthorLiMn1.5Ni0.5O4-
dc.subject.keywordAuthorChlorine doping-
dc.subject.keywordAuthorHigh voltage cathode-
dc.subject.keywordAuthorLi-ion diffusivity-
dc.subject.keywordAuthorLi-ion batteries-
dc.subject.keywordPlusRECHARGEABLE LITHIUM BATTERIES-
dc.subject.keywordPlusCELLS-
dc.subject.keywordPlusCAPACITY-
dc.subject.keywordPlusLI1+XMN2-XO4-
dc.subject.keywordPlusPERFORMANCE-
dc.subject.keywordPlusLIMN2O4-
dc.subject.keywordPlusRECHARGEABLE LITHIUM BATTERIES-
dc.subject.keywordPlusCELLS-
dc.subject.keywordPlusCAPACITY-
dc.subject.keywordPlusLI1+XMN2-XO4-
dc.subject.keywordPlusPERFORMANCE-
dc.subject.keywordPlusLIMN2O4-
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