Full metadata record
DC Field | Value | Language |
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dc.citation.number | 13 | - |
dc.citation.startPage | 2208423 | - |
dc.citation.title | ADVANCED MATERIALS | - |
dc.citation.volume | 35 | - |
dc.contributor.author | Lee, Eunryeol | - |
dc.contributor.author | Wi, Tae‐Ung | - |
dc.contributor.author | Park, Jaehyun | - |
dc.contributor.author | Park, Sang‐Wook | - |
dc.contributor.author | Kim, Min‐Ho | - |
dc.contributor.author | Lee, Dae‐Hyung | - |
dc.contributor.author | Park, Byung‐Chun | - |
dc.contributor.author | Jo, Chiho | - |
dc.contributor.author | Malik, Rahul | - |
dc.contributor.author | Lee, Jong Hoon | - |
dc.contributor.author | Shin, Tae Joo | - |
dc.contributor.author | Kang, Seok Ju | - |
dc.contributor.author | Lee, Hyun-Wook | - |
dc.contributor.author | Lee, Jinhyuk | - |
dc.contributor.author | Seo, Dong-Hwa | - |
dc.date.accessioned | 2023-12-21T12:50:05Z | - |
dc.date.available | 2023-12-21T12:50:05Z | - |
dc.date.created | 2023-01-12 | - |
dc.date.issued | 2023-03 | - |
dc.description.abstract | Understanding the local cation order in the crystal structure and its correlation with electrochemical performances has advanced the development of high-energy Mn-rich cathode materials for Li-ion batteries, notably Li- and Mn-rich layered cathodes (LMR, e.g., Li1.2Ni0.13Mn0.54Co0.13O2) that are considered as nanocomposite layered materials with C2/m Li2MnO3-type medium-range order (MRO). Moreover, the Li-transport rate in high-capacity Mn-based disordered rock-salt (DRX) cathodes (e.g., Li1.2Mn0.4Ti0.4O2) was found to be influenced by the short-range order (SRO) of cations, underlining the importance of engineering the local cation order in designing high-energy materials. Herein, we reveal the nanocomposite, heterogeneous nature (like MRO found in LMR) of ultrahigh-capacity partially ordered cathodes (e.g., Li1.68Mn1.6O3.7F0.3) made of distinct domains of spinel-, DRX- and layered-like phases, contrary to conventional single-phase DRX cathodes. This multi-scale understanding of ordering informs engineering the nanocomposite material via Ti doping, altering the intra-particle characteristics to increase the content of the rock-salt phase and heterogeneity within a particle. This strategy markedly improves the reversibility of both Mn- and O-redox processes to enhance the cycling stability of the partially ordered DRX cathodes (nearly ∼30% improvement of capacity retention). Our work sheds light on the importance of nanocomposite engineering to develop ultrahigh-performance, low-cost Li-ion cathode materials. | - |
dc.identifier.bibliographicCitation | ADVANCED MATERIALS, v.35, no.13, pp.2208423 | - |
dc.identifier.doi | 10.1002/adma.202208423 | - |
dc.identifier.issn | 0935-9648 | - |
dc.identifier.scopusid | 2-s2.0-85147513727 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/61552 | - |
dc.identifier.wosid | 000928843300001 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim | - |
dc.title | Nanocomposite Engineering of a High‐capacity Partially Ordered Cathode for Li‐ion Batteries | - |
dc.type | Article | - |
dc.description.isOpenAccess | TRUE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary;Chemistry, Physical;Nanoscience & Nanotechnology;Materials Science, Multidisciplinary;Physics, Applied;Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Chemistry;Science & Technology - Other Topics;Materials Science;Physics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | cation-disordered cathode materials | - |
dc.subject.keywordAuthor | DFT calculations | - |
dc.subject.keywordAuthor | high-energy Li-ion battereis | - |
dc.subject.keywordAuthor | local cation order | - |
dc.subject.keywordAuthor | nanocomposite nature | - |
dc.subject.keywordPlus | OXIDES | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | MN | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | REDOX | - |
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