Structural and Thermodynamic Understandings in Mn-Based Sodium Layered Oxides during Anionic Redox
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kong, Seok Mun | - |
dc.contributor.author | Kim, Duho | - |
dc.contributor.author | Lee, Kug-Seung | - |
dc.contributor.author | Kim, Min-Seob | - |
dc.contributor.author | Jin, Aihua | - |
dc.contributor.author | Park, Jae-Hyuk | - |
dc.contributor.author | Ahn, Chi-Yeong | - |
dc.contributor.author | Jeon, Tae-Yeol | - |
dc.contributor.author | Jung, Young Hwa | - |
dc.contributor.author | Yu, Seung-Ho | - |
dc.contributor.author | Mun, Junyoung | - |
dc.contributor.author | Sung, Yung-Eun | - |
dc.date.accessioned | 2021-12-09T10:42:20Z | - |
dc.date.available | 2021-12-09T10:42:20Z | - |
dc.date.created | 2021-08-30 | - |
dc.date.issued | 2020-08 | - |
dc.identifier.issn | 2198-3844 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/130548 | - |
dc.description.abstract | A breakthrough utilizing an anionic redox reaction (O2-/On-) for charge compensation has led to the development of high-energy cathode materials in sodium-ion batteries. However, its reaction results in a large voltage hysteresis due to the structural degradation arising from an oxygen loss. Herein, an interesting P2-type Mn-based compound exhibits a distinct two-phase behavior preserving a high-potential anionic redox (approximate to 4.2 V vs Na+/Na) even during the subsequent cycling. Through a systematic series of experimental characterizations and theoretical calculations, the anionic redox reaction originating from O 2p-electron and the reversible unmixing of Na-rich and Na-poor phases are confirmed in detail. In light of the combined study, a critical role of the anion-redox-induced two-phase reaction in the positive-negative point of view is demonstrated, suggesting a rational design principle considering the phase separation and lattice mismatch. Furthermore, these results provide an exciting approach for utilizing the high-voltage feature in Mn-based layered cathode materials that are charge-compensated by an anionic redox reaction. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | WILEY | - |
dc.subject | CATHODE MATERIAL | - |
dc.subject | CHARGE-COMPENSATION | - |
dc.subject | OXYGEN | - |
dc.subject | BATTERIES | - |
dc.subject | PHASE | - |
dc.subject | VISUALIZATION | - |
dc.subject | INTERCALATION | - |
dc.subject | SPECTROSCOPY | - |
dc.subject | PERFORMANCE | - |
dc.subject | CHEMISTRY | - |
dc.title | Structural and Thermodynamic Understandings in Mn-Based Sodium Layered Oxides during Anionic Redox | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Yu, Seung-Ho | - |
dc.identifier.doi | 10.1002/advs.202001263 | - |
dc.identifier.scopusid | 2-s2.0-85087307574 | - |
dc.identifier.wosid | 000544714300001 | - |
dc.identifier.bibliographicCitation | ADVANCED SCIENCE, v.7, no.16 | - |
dc.relation.isPartOf | ADVANCED SCIENCE | - |
dc.citation.title | ADVANCED SCIENCE | - |
dc.citation.volume | 7 | - |
dc.citation.number | 16 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | CATHODE MATERIAL | - |
dc.subject.keywordPlus | CHARGE-COMPENSATION | - |
dc.subject.keywordPlus | OXYGEN | - |
dc.subject.keywordPlus | BATTERIES | - |
dc.subject.keywordPlus | PHASE | - |
dc.subject.keywordPlus | VISUALIZATION | - |
dc.subject.keywordPlus | INTERCALATION | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | CHEMISTRY | - |
dc.subject.keywordAuthor | anionic redox | - |
dc.subject.keywordAuthor | cathodes | - |
dc.subject.keywordAuthor | sodium ion batteries | - |
dc.subject.keywordAuthor | two-phase reactions | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.