Mostrar el registro sencillo del ítem

Direct observation of important morphology and composition changes at the surface of the CuO conversion material in lithium batteries

hal.structure.identifierInstitut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux [IPREM]
hal.structure.identifierLaboratoire d'Innovation pour les Technologies des Energies Nouvelles et les nanomatériaux [LITEN]
dc.contributor.authorMARTIN, Lucile
hal.structure.identifierInstitut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux [IPREM]
dc.contributor.authorMARTINEZ, Hervé
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierLaboratoire d'Innovation pour les Technologies des Energies Nouvelles et les nanomatériaux [LITEN]
dc.contributor.authorPOINOT, Delphine
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPECQUENARD, Brigitte
hal.structure.identifierLaboratoire d'Innovation pour les Technologies des Energies Nouvelles et les nanomatériaux [LITEN]
dc.contributor.authorLE CRAS, F.
dc.date.issued2014
dc.identifier.issn0378-7753
dc.description.abstractEnMorphology and composition changes occurring at the surface of CuO thin film electrode, used as conversion material for lithium-ion battery, were investigated at different stages of the electrochemical cycling by atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). Analyses were performed on samples obtained in LiPF6 containing carbonate-based electrolyte and prepared by linear sweep voltammetry. The formation/partial dissolution of a solid electrolyte interphase (SEI) was evidenced by XPS analyses. The SEI layer formed on lithiated CuO thin film during the first reduction between [3.5-0.8] V/Li+/Li is characterized by a LiF-rich inner layer and a Li2CO3-rich outer layer. Furthermore, reduction/oxidation cycles induced important surface morphology modifications. In particular, the growth and then the vanishing of large spherical nodules (∼400 nm in diameter) were observed during the lithium insertion and the subsequent deinsertion. During the twenty first cycles performed, even if a stable electrochemical behavior was shown, breathing of the thin film was also clearly evidenced by AFM images with the appearance and disappearance of numerous cracks as a function of Li removal and Li insertion processes. © 2013 Elsevier B.V. All rights reserved.
dc.language.isoen
dc.publisherElsevier
dc.subject.enLithium batteries
dc.subject.enCopper oxide
dc.subject.enThin film
dc.subject.enSEI
dc.subject.enXPS
dc.subject.enAFM
dc.title.enDirect observation of important morphology and composition changes at the surface of the CuO conversion material in lithium batteries
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jpowsour.2013.10.015
dc.subject.halChimie/Matériaux
dc.subject.halChimie/Chimie inorganique
bordeaux.journalJournal of Power Sources
bordeaux.page861-873
bordeaux.volume248
bordeaux.peerReviewedoui
hal.identifierhal-01503976
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01503976v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Power%20Sources&rft.date=2014&rft.volume=248&rft.spage=861-873&rft.epage=861-873&rft.eissn=0378-7753&rft.issn=0378-7753&rft.au=MARTIN,%20Lucile&MARTINEZ,%20Herv%C3%A9&POINOT,%20Delphine&PECQUENARD,%20Brigitte&LE%20CRAS,%20F.&rft.genre=article


Archivos en el ítem

ArchivosTamañoFormatoVer

No hay archivos asociados a este ítem.

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem