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Coulombic self-ordering upon charging a large-capacity layered cathode material for rechargeable batteries

hal.structure.identifierDepartment of Chemical System Engineering
dc.contributor.authorMORTEMARD DE BOISSE, Benoit
hal.structure.identifierCIC EnergiGUNE (SPAIN)
dc.contributor.authorREYNAUD, Marine
hal.structure.identifierDepartment of Chemical System Engineering
dc.contributor.authorMA, Jiangtao
hal.structure.identifierAdvanced Key Technologies Division
dc.contributor.authorKIKKAWA, Jun
hal.structure.identifierDepartment of Chemical System Engineering
hal.structure.identifierUnit of Element Strategy Initiative for Catalysts & Batteries, ESICB, Kyoto University
dc.contributor.authorNISHIMURA, Shin-Ichi
hal.structure.identifierCIC EnergiGUNE (SPAIN)
dc.contributor.authorCASAS-CABANAS, Montse
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDELMAS, Claude
hal.structure.identifierDepartment of Chemical System Engineering
hal.structure.identifierUnit of Element Strategy Initiative for Catalysts & Batteries, ESICB, Kyoto University
dc.contributor.authorOKUBO, Masashi
hal.structure.identifierDepartment of Chemical System Engineering
hal.structure.identifierUnit of Element Strategy Initiative for Catalysts & Batteries, ESICB, Kyoto University
dc.contributor.authorYAMADA, Atsuo
dc.date.issued2019-12
dc.identifier.issn2041-1723
dc.description.abstractEnLithium- and sodium-rich layered transition-metal oxides have recently been attracting significant interest because of their large capacity achieved by additional oxygen-redox reactions. However, layered transition-metal oxides exhibit structural degradation such as cation migration, layer exfoliation or cracks upon deep charge, which is a major obstacle to achieve higher energy-density batteries. Here we demonstrate a self-repairing phenomenon of stacking faults upon desodiation from an oxygen-redox layered oxide Na2RuO3, realizing much better reversibility of the electrode reaction. The phase transformations upon charging A2MO3 (A: alkali metal) can be dominated by three-dimensional Coulombic attractive interactions driven by the existence of ordered alkali-metal vacancies, leading to counterintuitive self-repairing of stacking faults and progressive ordering upon charging. The cooperatively ordered vacancy in lithium-/sodium-rich layered transition-metal oxides is shown to play an essential role, not only in generating the electro-active nonbonding 2p orbital of neighbouring oxygen but also in stabilizing the phase transformation for highly reversible oxygen-redox reactions.
dc.language.isoen
dc.publisherNature Publishing Group
dc.title.enCoulombic self-ordering upon charging a large-capacity layered cathode material for rechargeable batteries
dc.typeArticle de revue
dc.identifier.doi10.1038/s41467-019-09409-1
dc.subject.halChimie/Matériaux
bordeaux.journalNature Communications
bordeaux.page2185 (7 p.)
bordeaux.volume10
bordeaux.peerReviewedoui
hal.identifierhal-02135401
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02135401v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Nature%20Communications&rft.date=2019-12&rft.volume=10&rft.spage=2185%20(7%20p.)&rft.epage=2185%20(7%20p.)&rft.eissn=2041-1723&rft.issn=2041-1723&rft.au=MORTEMARD%20DE%20BOISSE,%20Benoit&REYNAUD,%20Marine&MA,%20Jiangtao&KIKKAWA,%20Jun&NISHIMURA,%20Shin-Ichi&rft.genre=article


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