A nano-LiNbO3 coating layer and diffusion-induced surface control towards high-performance 5 V spinel cathodes for rechargeable batteries
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Hyeongwoo | - |
dc.contributor.author | Byun, Dongjin | - |
dc.contributor.author | Chang, Wonyoung | - |
dc.contributor.author | Jung, Hun-Gi | - |
dc.contributor.author | Choi, Wonchang | - |
dc.date.accessioned | 2021-09-02T21:49:38Z | - |
dc.date.available | 2021-09-02T21:49:38Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2017-12-21 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/81140 | - |
dc.description.abstract | The surface of a spinel LiNi0.5Mn1.5O4 cathode was modified with a nano-LiNbO3 coating layer by employing a Nb citrate-coated Ni0.25Mn0.75(OH)(2) precursor and subsequent single calcination with LiOH at 900 degrees C. The facile formation of the LiNbO3 coating layer in the earlier stage of the calcination process in the presence of abundant LiOH resulted in successful modification of the parent material with a thin and homogeneous coating layer. More importantly, the partial diffusion and subsequent substitution of Nb ions into the parent material beneath the coating layer resulted in a Mn3+-rich domain near the surface of the parent material, LiNi0.5Mn1.5O4. This Mn3+-rich region effectively improved the kinetic properties of Li+ diffusion near the surface of the cathode, especially during fast discharging, and the LiNbO3-coated spinel oxide cathode with a high loading level of around 10 mg cm(-2) exhibited a discharge capacity of 100 mA h g(-1) even at 10C at ambient temperature. In addition, it showed 90% capacity retention after 100 cycles at 60 degrees C owing to the LiNbO3 coating layer acting as a protective layer. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | HIGH-VOLTAGE SPINEL | - |
dc.subject | ENHANCED LITHIUM STORAGE | - |
dc.subject | HIGH-RATE CAPABILITY | - |
dc.subject | COATED LINI0.5MN1.5O4 SPINEL | - |
dc.subject | VAPOR-DEPOSITION METHOD | - |
dc.subject | ELECTROCHEMICAL PROPERTIES | - |
dc.subject | CYCLING PERFORMANCE | - |
dc.subject | ASSISTED SYNTHESIS | - |
dc.subject | OXYGEN VACANCIES | - |
dc.subject | ETHYLENE-GLYCOL | - |
dc.title | A nano-LiNbO3 coating layer and diffusion-induced surface control towards high-performance 5 V spinel cathodes for rechargeable batteries | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Byun, Dongjin | - |
dc.identifier.doi | 10.1039/c7ta07898f | - |
dc.identifier.scopusid | 2-s2.0-85037543775 | - |
dc.identifier.wosid | 000417063200060 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY A, v.5, no.47, pp.25077 - 25089 | - |
dc.relation.isPartOf | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.volume | 5 | - |
dc.citation.number | 47 | - |
dc.citation.startPage | 25077 | - |
dc.citation.endPage | 25089 | - |
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 | Energy & Fuels | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | HIGH-VOLTAGE SPINEL | - |
dc.subject.keywordPlus | ENHANCED LITHIUM STORAGE | - |
dc.subject.keywordPlus | HIGH-RATE CAPABILITY | - |
dc.subject.keywordPlus | COATED LINI0.5MN1.5O4 SPINEL | - |
dc.subject.keywordPlus | VAPOR-DEPOSITION METHOD | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PROPERTIES | - |
dc.subject.keywordPlus | CYCLING PERFORMANCE | - |
dc.subject.keywordPlus | ASSISTED SYNTHESIS | - |
dc.subject.keywordPlus | OXYGEN VACANCIES | - |
dc.subject.keywordPlus | ETHYLENE-GLYCOL | - |
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.