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hal.structure.identifierDepartment of Chemistry
dc.contributor.authorHONG, Young-Sik
hal.structure.identifierDepartment of Chemistry
dc.contributor.authorHAN, Chi-Hwan
hal.structure.identifierDepartment of Chemistry
dc.contributor.authorKIM, Keon
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorKWON, Chai-Won
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCAMPET, Guy
hal.structure.identifierNational Nanohybrid Materials Laboratory
dc.contributor.authorCHOY, Jin-Ho
dc.date.issued2001
dc.identifier.issn0167-2738
dc.description.abstractEnThe Li+/Co3+-codoped LiMn2O4 spinel was prepared using two-step synthesis method consisting of solid-state reaction method and citrate modified sol–gel method, in order to investigate the changes of the electrochemical properties of the spinel LiMn2O4 on the amount of Li+/Co3+ ions. The FT-infrared spectra, chemical analysis, and Rietveld refinements of their XRD data revealed that the manganese ions in the 16d sites were replaced by both lithium and cobalt ions. Thus, the composition of obtained powders could be expressed as the new spinel formula (Li)[Mn2−xLix/4Co3x/4]O4, that is, (Li)[Mn3+1−3x/2Mn4+1+x/2Lix/4Co3+3x/4]O4. The inclusion of lithium and cobalt ions in 16d sites enhanced the electrochemical cyclability of LiMn2O4 at the expense of a reduction in the initial charge capacity. The improvement in cycling performance was mainly attributed to the suppression of Jahn–Teller distortion as shown in (Li)[Mn2−xLix]O4 and (Li)[Mn2−xCox]O4.
dc.language.isoen
dc.publisherElsevier
dc.title.enStructural and electrochemical properties of the spinel Li(Mn2−xLix/4Co3x/4)O4
dc.typeArticle de revue
dc.identifier.doi10.1016/S0167-2738(00)00821-3
dc.subject.halChimie/Matériaux
bordeaux.journalSolid State Ionics
bordeaux.page75-81
bordeaux.volume139
bordeaux.issue1-2
bordeaux.peerReviewedoui
hal.identifierhal-03672772
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03672772v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Solid%20State%20Ionics&rft.date=2001&rft.volume=139&rft.issue=1-2&rft.spage=75-81&rft.epage=75-81&rft.eissn=0167-2738&rft.issn=0167-2738&rft.au=HONG,%20Young-Sik&HAN,%20Chi-Hwan&KIM,%20Keon&KWON,%20Chai-Won&CAMPET,%20Guy&rft.genre=article


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