Chemical valence electron-engineered LiNi0.4Mn1.5MtO4 (M-t = Co and Fe) cathode materials with high-performance electrochemical properties
DC Field | Value | Language |
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dc.contributor.author | Kim, Min-Cheol | - |
dc.contributor.author | Lee, Young-Woo | - |
dc.contributor.author | Pham, Tuan Kiet | - |
dc.contributor.author | Sohn, Jung Inn | - |
dc.contributor.author | Park, Kyung-Won | - |
dc.date.accessioned | 2021-08-11T08:37:33Z | - |
dc.date.available | 2021-08-11T08:37:33Z | - |
dc.date.issued | 2020-02-28 | - |
dc.identifier.issn | 0169-4332 | - |
dc.identifier.issn | 1873-5584 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/3082 | - |
dc.description.abstract | LiNi0.5Mn1.5O4 (LNMO) with a spinel crystalline structure exhibits excellent properties such as a high voltage of similar to 4.7 V and a fairly high theoretical capacity of similar to 147 mAh g(-1) as well as low cost. However, LNMO cathode materials exhibit a deteriorated high-rate performance and capacity fading because of their low structural stability caused by dissolution of Mn ions into the electrolyte via the Jahn-Teller effect during the Li+ ion insertion/desertion process. Herein, to obtain electrochemical/structural stabilities and to prevent dissolution of Mn ions from pristine LNMO, we designed M-t-doped LNMO cathode materials (LiNi0.4Mn1.5 MtO4) with different transition metal elements (M-t = Co and Fe) having a chemical valence electron of M-t(3+) using a hydrothermal method. All samples exhibited that the M-t-doped LNMO structures were homogeneously doped with Co and Fe elements. Furthermore, compared with the undoped LNMO materials, the M-t-doped LNMO cathode materials showed superior electrochemical properties in terms of high discharge capacities (121.1 mAh g(-1)) at 120 mA g(-1) and good cycle retentions (over 99.7%) after 200 cycles as well as improved high-rate performance, because of the well-engineered valance and disordered structure for the doping of M-t(3+), preventing the dissolution of Mn ions via the Jahn-Teller distortion. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Elsevier BV | - |
dc.title | Chemical valence electron-engineered LiNi0.4Mn1.5MtO4 (M-t = Co and Fe) cathode materials with high-performance electrochemical properties | - |
dc.type | Article | - |
dc.publisher.location | 네델란드 | - |
dc.identifier.doi | 10.1016/j.apsusc.2019.144514 | - |
dc.identifier.scopusid | 2-s2.0-85075486097 | - |
dc.identifier.wosid | 000502040600086 | - |
dc.identifier.bibliographicCitation | Applied Surface Science, v.504 | - |
dc.citation.title | Applied Surface Science | - |
dc.citation.volume | 504 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Coatings & Films | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | LITHIUM-ION BATTERIES | - |
dc.subject.keywordPlus | HIGH-VOLTAGE CATHODE | - |
dc.subject.keywordPlus | TRUNCATED OCTAHEDRAL LINI0.5MN1.5O4 | - |
dc.subject.keywordPlus | SPINEL CATHODE | - |
dc.subject.keywordPlus | DOPED LINI0.5MN1.5O4 | - |
dc.subject.keywordPlus | MANGANESE | - |
dc.subject.keywordPlus | POWER | - |
dc.subject.keywordPlus | MORPHOLOGY | - |
dc.subject.keywordPlus | INTERFACE | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordAuthor | LiNi0.5Mn1.5O4 | - |
dc.subject.keywordAuthor | Dopant | - |
dc.subject.keywordAuthor | Jahn-Teller distortion | - |
dc.subject.keywordAuthor | Cathode material | - |
dc.subject.keywordAuthor | Li-ion battery | - |
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