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Influence of the initial Li/Co ration in LiCoO2 on the high-voltage phase-transition mechanisms

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDUFFIET, Marie
hal.structure.identifierUMICORE
dc.contributor.authorBLANGERO, Maxime
hal.structure.identifierUMICORE
dc.contributor.authorCABELGUEN, Pierre-Etienne
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDELMAS, Claude
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCARLIER, Dany
dc.date.issued2018
dc.identifier.issn1948-7185
dc.description.abstractEnThe influence of the initial Li/Co stoichiometry in LiCoO2 (LCO) (1.00 ≤ Li/Co ≤ 1.05) on the phase-transition mechanisms occurring at high voltage during lithium deintercalation (V > 4.5 vs Li+/Li) was investigated by in situ X-ray diffraction. Even if the excess Li+ in Li1.024Co0.976O1.976 does not hinder the formation of the H1–3 and O1 phases, the latter are obtained at higher voltages and exhibit larger c parameters compared with their analogues formed from Li1.00CoO2. We also showed that for the stoichiometric Li1.00CoO2 the deintercalation process is more complex than already reported, with the formation of an intermediate structure between H1–3 and O1.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.title.enInfluence of the initial Li/Co ration in LiCoO2 on the high-voltage phase-transition mechanisms
dc.typeArticle de revue
dc.identifier.doi10.1021/acs.jpclett.8b02252
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Physical Chemistry Letters
bordeaux.page5334-5338
bordeaux.volume9
bordeaux.issue18
bordeaux.peerReviewedoui
hal.identifierhal-01885180
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01885180v1
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