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DC Field | Value | Language |
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dc.citation.endPage | 8794 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 7639 | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 15 | - |
dc.contributor.author | Bae, Jin-Gyu | - |
dc.contributor.author | Lee, Ju-Hyeon | - |
dc.contributor.author | Kim, Min Sung | - |
dc.contributor.author | Kim, Byung Gon | - |
dc.contributor.author | Lee, Hyeon Jeong | - |
dc.contributor.author | Lee, Ji Hoon | - |
dc.date.accessioned | 2023-12-21T13:06:26Z | - |
dc.date.available | 2023-12-21T13:06:26Z | - |
dc.date.created | 2023-09-04 | - |
dc.date.issued | 2023-02 | - |
dc.description.abstract | Layered lithium cobalt oxide (LiCoO2, LCO), which serves as a structural motif for the widely adopted layered cathodes in lithium-ion batteries, has a long history, and its unstable phase transition during high-voltage operation (similar to 4.5 V) remains an intractable problem. Many research strategies, such as surface coating and immobile ion doping, have been proposed to address this issue, but a clear understanding of the effects has not been demonstrated because of various potential parameters (e.g., particle size, shape, and dopant content). Herein, we report a molten salt synthesis method that produces sphere-like single-crystal magnesium (Mg)-doped LCO. In situ X-ray diffraction and X-ray absorption fine structure analyses confirmed that the lattice strain was effectively alleviated by the effects of both the particle shape and Mg doping compared to the plate-like and sphere-like single-crystal LCO samples. Furthermore, the preference for Mg doping in the Co site (3b) rather than in the Li site (3a) in the LCO framework is systematically revealed, and a clear understanding of Mg doping that suppresses the monoclinic phase transition is discussed in detail. | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.15, no.6, pp.7639 - 8794 | - |
dc.identifier.doi | 10.1021/acsami.2c17993 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.scopusid | 2-s2.0-85146341821 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/65336 | - |
dc.identifier.wosid | 000916838200001 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Structural Evolution of Mg-Doped Single-Crystal LiCoO2 Cathodes: Importance of Morphology and Mg-Doping Sites | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics; Materials Science | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | lithium cobalt oxide | - |
dc.subject.keywordAuthor | Mg-doping | - |
dc.subject.keywordAuthor | phase transition | - |
dc.subject.keywordAuthor | X-ray diffraction | - |
dc.subject.keywordAuthor | X-ray absorption fine structure | - |
dc.subject.keywordPlus | ENHANCED ELECTROCHEMICAL PERFORMANCE | - |
dc.subject.keywordPlus | LITHIUM COBALT OXIDE | - |
dc.subject.keywordPlus | X-RAY-DIFFRACTION | - |
dc.subject.keywordPlus | HIGH-CAPACITY | - |
dc.subject.keywordPlus | PHASE-TRANSITION | - |
dc.subject.keywordPlus | REDOX REACTIONS | - |
dc.subject.keywordPlus | HIGH-POWER | - |
dc.subject.keywordPlus | THIN-FILM | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordPlus | ORIENTATION | - |
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