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Lithium secondary batteries working at very high temperature: capacity fade and understanding of aging mechanisms

hal.structure.identifierInstitut pluridisciplinaire de recherche sur l'environnement et les matériaux [IPREM]
dc.contributor.authorBODENES, Lucille
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorNATUREL, Romain
hal.structure.identifierInstitut pluridisciplinaire de recherche sur l'environnement et les matériaux [IPREM]
dc.contributor.authorMARTINEZ, Hervé
hal.structure.identifierInstitut pluridisciplinaire de recherche sur l'environnement et les matériaux [IPREM]
dc.contributor.authorDEDRYVÈRE, Rémi
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMÉNÉTRIER, Michel
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCROGUENNEC, Laurence
hal.structure.identifierSAFT [Poitiers]
dc.contributor.authorPÉRÈS, Jean-Paul
hal.structure.identifierSAFT [Bordeaux]
dc.contributor.authorTESSIER, Cécile
hal.structure.identifierSAFT [Bordeaux]
dc.contributor.authorFISCHER, Florent
dc.date.issued2013
dc.identifier.issn0378-7753
dc.description.abstractEnLi(Ni,Mn,Co)O2/carbon lithium-ion batteries designed to work at high temperature exhibit good performances for cycling at 85 °C but a strong impedance increase for cycling or storage at 120 °C. The effects of high temperature on the aging process of positive electrode's binder, electrodes/electrolyte interfaces and positive active material were investigated by bulk and surface analysis techniques: X-ray diffraction, 7Li and 19F Nuclear Magnetic Resonance, Scanning Electron Microscopy and X-ray Photoelectron Spectroscopy. The main phenomenon observed at 120 °C is a migration of PVdF binder from the outer part of the positive electrode which thus shows a bad Li reintercalation. Binder migration results in the formation of a PVdF layer at the extreme surface of the positive electrode, and in its diffusion and deposition on the surface of the negative electrode. Several changes in the composition of the Solid Electrolyte Interphase (SEI) were also evidenced between a cycle at 60 °C and cycling at 85 °C and 120 °C. Disappearance of carbonate species disappearance and increase of inorganic species, which both together may also affect battery's performance. Though, since the battery can undergo 25 cycles at 120 °C, Li(Ni,Mn,Co)O2 seems to be an appropriate material for high temperature cycling.
dc.language.isoen
dc.publisherElsevier
dc.subject.enLithium-ion batteries
dc.subject.enHigh temperature
dc.subject.enSEI
dc.subject.enXPS
dc.subject.enNMR
dc.title.enLithium secondary batteries working at very high temperature: capacity fade and understanding of aging mechanisms
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jpowsour.2013.02.067
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Power Sources
bordeaux.page265-275
bordeaux.volume236
bordeaux.peerReviewedoui
hal.identifierhal-00806316
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00806316v1
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