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Anionic redox reaction-induced high-capacity and low-strain cathode with suppressed phase transition

hal.structure.identifierBeijing National Laboratory for Condensed Matter Physics and Institute of Physics [IoP/CAS]
hal.structure.identifierCenter of Materials Science and Optoelectronics Engineering
dc.contributor.authorRONG, Xiaohui
hal.structure.identifierChemistry Division
dc.contributor.authorHU, Enyuan
hal.structure.identifierBeijing National Laboratory for Condensed Matter Physics and Institute of Physics [IoP/CAS]
dc.contributor.authorLU, Yaxiang
hal.structure.identifierBeijing National Laboratory for Condensed Matter Physics and Institute of Physics [IoP/CAS]
dc.contributor.authorMENG, Fanqi
hal.structure.identifierBeijing National Laboratory for Condensed Matter Physics and Institute of Physics [IoP/CAS]
dc.contributor.authorZHAO, Chenglong
hal.structure.identifierBeijing National Laboratory for Condensed Matter Physics and Institute of Physics [IoP/CAS]
hal.structure.identifierChemistry Division
dc.contributor.authorWANG, Xuelong
hal.structure.identifierBeijing National Laboratory for Condensed Matter Physics and Institute of Physics [IoP/CAS]
dc.contributor.authorZHANG, Qinghua
hal.structure.identifierBeijing National Laboratory for Condensed Matter Physics and Institute of Physics [IoP/CAS]
hal.structure.identifierCenter of Materials Science and Optoelectronics Engineering
dc.contributor.authorYU, Xiqian
hal.structure.identifierBeijing National Laboratory for Condensed Matter Physics and Institute of Physics [IoP/CAS]
dc.contributor.authorGU, Lin
hal.structure.identifierBeijing National Laboratory for Condensed Matter Physics and Institute of Physics [IoP/CAS]
hal.structure.identifierCenter of Materials Science and Optoelectronics Engineering
hal.structure.identifierYangtze River Delta Physics Research Center Co. Ltd
dc.contributor.authorHU, Yong-Sheng
hal.structure.identifierBeijing National Laboratory for Condensed Matter Physics and Institute of Physics [IoP/CAS]
hal.structure.identifierYangtze River Delta Physics Research Center Co. Ltd
dc.contributor.authorLI, Hong
hal.structure.identifierBeijing National Laboratory for Condensed Matter Physics and Institute of Physics [IoP/CAS]
dc.contributor.authorHUANG, Xuejie
hal.structure.identifierChemistry Division
dc.contributor.authorYANG, Xiao-Qing
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDELMAS, Claude
hal.structure.identifierBeijing National Laboratory for Condensed Matter Physics and Institute of Physics [IoP/CAS]
dc.contributor.authorLI, Liquan
dc.date.issued2019
dc.identifier.issn2542-4351
dc.description.abstractEnLayered metal oxides have attracted widespread attention as cathodes for Na-ion batteries (NIBs) because of easy synthesis, high specific capacity, and high energy density. However, most reported layered oxides suffer from complex phase transitions upon a large amount of Na deintercalation. Here we report a P2-type Na 0.72[Li 0.24Mn 0.76]O 2, exhibiting exceptionally high initial charge capacity of ∼210 mAh/g (0.72 Na) based on a pure anionic redox reaction (ARR). Surprisingly, global P2 structure can be maintained with minimal volume change (1.35%) upon complete removal of Na + ions. This is due to the reduced Coulombic repulsion associated with ARR and consequent suppression of the phase transition as observed in other P2 materials. Here we reveal for the first time that ARR has the functionality of stabilizing the structure, in addition to its role in increasing its already known capacity. This would pave the way for the further improvement of high-energy-density NIBs.
dc.language.isoen
dc.publisherElsevier
dc.subject.enLayered oxide
dc.subject.enNa-ion battery
dc.subject.enCathode
dc.subject.enHigh capacity
dc.subject.enLow-strain
dc.subject.enAnionic redox reaction
dc.title.enAnionic redox reaction-induced high-capacity and low-strain cathode with suppressed phase transition
dc.typeArticle de revue
dc.identifier.doi10.1016/j.joule.2018.10.022
dc.subject.halChimie/Matériaux
bordeaux.journalJoule
bordeaux.page503-517
bordeaux.volume3
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-01956010
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01956010v1
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