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The role of structure and interface in the performance of TiSnSb as an electrode for Li-ion batteries

hal.structure.identifierInstitut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM ICMMM]
dc.contributor.authorMARINO, Cyril
hal.structure.identifierLaboratoire des Agrégats Moléculaires et Matériaux Inorganiques [LAMMI]
dc.contributor.authorSOUGRATI, Moulay Tahar
hal.structure.identifierInstitut für Anorganische und Analytische Chemie
dc.contributor.authorPÖTTGEN, Rainer
hal.structure.identifierInstitut für Anorganische und Analytische Chemie
dc.contributor.authorGERKE, B.
hal.structure.identifierUniversity of Cambridge [UK] [CAM]
dc.contributor.authorHUO, Hua
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.authorMÉNÉTRIER, Michel
hal.structure.identifierDepartment of Chemistry
dc.contributor.authorGREY, Clare P.
hal.structure.identifierInstitut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM ICMMM]
hal.structure.identifierRéseau sur le stockage électrochimique de l'énergie [RS2E]
dc.contributor.authorMONCONDUIT, Laure
dc.date.created2012-09-24
dc.date.issued2012-11-27
dc.identifier.issn0897-4756
dc.description.abstractEnThe lithium-ion battery electrode material TiSnSb shows excellent electrochemical performance related to its high capacity (550 mA h g−1) and rate capability over 210 cycles. To discriminate between the role of active material and the role of the electrode formulation in the good electrochemical features of the TiSnSb electrodes, a full study comparing the electrochemical mechanisms of TiSnSb and a Ti/ Sn/Sb composite vs Li is undertaken by combining X-ray diffraction (XRD), 121Sb, 119Sn Mössbauer and 7Li NMR spectroscopic in situ measurements. During the first discharge, TiSnSb undergoes a direct conversion reaction while Ti/Sn/Sb composites proceed by a stepwise alloying process, both leading to a mixture of lithium antimonide, lithium stannides, and titanium. More surprisingly the charge occurs differently with a reformation of the "TiSnSb" phase in the first case and the formation of Sn and Sb in the second case. The key role of the interfaces in conversion type reactions is discussed. The nature of the interfaces is linked to the long-range order of elements in the starting material. Furthermore, the length scales of the interfaces between Li3Sb, LixSn and Ti appear to control the reactions that occur on charge.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.subject.enTiSnSb
dc.subject.enin situ Mössbauer spectroscopy and XRD
dc.subject.enLi-ion batteries
dc.subject.enconversion
dc.subject.eninterfaces
dc.title.enThe role of structure and interface in the performance of TiSnSb as an electrode for Li-ion batteries
dc.typeArticle de revue
dc.identifier.doi10.1021/cm303086j
dc.subject.halChimie/Matériaux
dc.description.sponsorshipEuropeAdvanced lithium energy storage systems based on the use of nano-powders and nano-composite electrodes/electrolytes (ALISTORE)
bordeaux.journalChemistry of Materials
bordeaux.page4735-4743
bordeaux.volume24
bordeaux.issue24
bordeaux.peerReviewedoui
hal.identifierhal-00806354
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00806354v1
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