Mostrar el registro sencillo del ítem

Li-rich Li1+xMn2-xO4 spinel electrode materials : an operando neutron diffraction study during Li+ extraction/insertion

hal.structure.identifierRéseau sur le stockage électrochimique de l'énergie [RS2E]
hal.structure.identifierLaboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV [LRCS]
hal.structure.identifierInstitut Laue-Langevin [ILL]
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBIANCHINI, Mateos
hal.structure.identifierInstitut Laue-Langevin [ILL]
dc.contributor.authorSUARD, Emmanuelle
hal.structure.identifierAdvanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI]
hal.structure.identifierRéseau sur le stockage électrochimique de l'énergie [RS2E]
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCROGUENNEC, Laurence
hal.structure.identifierRéseau sur le stockage électrochimique de l'énergie [RS2E]
hal.structure.identifierLaboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV [LRCS]
hal.structure.identifierAdvanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI]
dc.contributor.authorMASQUELIER, Christian
dc.date.issued2014
dc.identifier.issn1932-7447
dc.description.abstractEnIn situ neutron diffraction (ND) during battery operation is becoming a promising technique for the study of electrode materials in Li-ion batteries. We recently designed an electrochemical cell for operando ND studies and demonstrated that it can deliver powder patterns of good quality for Rietveld structural refinements. Herein we used such a cell to study the deintercalation process occurring in manganese spinels of general formula Li1+xMn2–xO4. Three samples with increasing Li/Mn ratio (x = 0, x = 0.05, and x = 0.10) were synthesized and measured on the D20 high-flux powder diffractometer at ILL. We found fundamental differences between the phase diagrams of the three samples, intimately related to their electrochemical features. Upon charge, the study revealed a sequence of two biphasic reactions for LiMn2O4 (with an intermediate phase of composition close to Li0.6Mn2O4), a solid solution followed by a biphasic reaction for Li1.05Mn1.95O4, and a full solid solution for Li1.10Mn1.90O4. Moreover, Rietveld refinement led to key parameters such as cell parameters, oxygen’s fractional atomic coordinates, and more importantly, lithium’s site occupancy factors, whose rate of variation is found to be related to the state of charge of the electrode.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.title.enLi-rich Li1+xMn2-xO4 spinel electrode materials : an operando neutron diffraction study during Li+ extraction/insertion
dc.typeArticle de revue
dc.identifier.doi10.1021/jp509027g
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Physical Chemistry C
bordeaux.page25947–25955
bordeaux.volume118
bordeaux.issue45
bordeaux.peerReviewedoui
hal.identifierhal-01088086
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01088086v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Physical%20Chemistry%20C&rft.date=2014&rft.volume=118&rft.issue=45&rft.spage=25947%E2%80%9325955&rft.epage=25947%E2%80%9325955&rft.eissn=1932-7447&rft.issn=1932-7447&rft.au=BIANCHINI,%20Mateos&SUARD,%20Emmanuelle&CROGUENNEC,%20Laurence&MASQUELIER,%20Christian&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