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DC Field | Value | Language |
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dc.citation.endPage | 1248 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 1238 | - |
dc.citation.title | CHEMISTRY OF MATERIALS | - |
dc.citation.volume | 33 | - |
dc.contributor.author | Lee, Hyeon Jeong | - |
dc.contributor.author | Brown, Zachary | - |
dc.contributor.author | Zhao, Ying | - |
dc.contributor.author | Fawdon, Jack | - |
dc.contributor.author | Song, Weixin | - |
dc.contributor.author | Lee, Ji Hoon | - |
dc.contributor.author | Ihli, Johannes | - |
dc.contributor.author | Pasta, Mauro | - |
dc.date.accessioned | 2023-12-21T16:12:47Z | - |
dc.date.available | 2023-12-21T16:12:47Z | - |
dc.date.created | 2023-09-04 | - |
dc.date.issued | 2021-02 | - |
dc.description.abstract | The high-voltage (4.7 V vs Li+/Li) spinel lithium nickel manganese oxide (LiNi0.5Mn1.5O4, LNMO) is a promising candidate for the next generation of lithium-ion batteries due to its high energy density, low cost, and low environmental impact. However, poor cycling performance at high cutoff potentials limits its commercialization. Herein, hollow-structured LNMO is synergistically paired with an ionic liquid electrolyte, 1 M lithium bis(fluorosulfonyl)imide (LiFSI) in N-propyl-N-methylpyrrolidinium bis( fluorosulfonyl)imide (Pyr(1,3)FSI), to achieve stable cycling performance and improve the rate capability. The optimized cathode-electrolyte system exhibits extended cycling performance (>85% capacity retention after 300 cycles) and high rate performance (106.2 mAh g(-1) at 5C) even at an elevated temperature of 65 degrees C. X-ray photoelectron spectroscopy and spatially resolved X-ray fluorescence analyses confirm the formation of a robust, LiF-rich cathode-electrolyte interphase. This study presents a comprehensive design strategy to improve the electrochemical performance of high-voltage cathode materials. | - |
dc.identifier.bibliographicCitation | CHEMISTRY OF MATERIALS, v.33, no.4, pp.1238 - 1248 | - |
dc.identifier.doi | 10.1021/acs.chemmater.0c04014 | - |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.scopusid | 2-s2.0-85101044956 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/65348 | - |
dc.identifier.wosid | 000623043600015 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Ordered LiNi0.5Mn1.5O4 Cathode in Bis(fluorosulfonyl)imide-Based Ionic Liquid Electrolyte: Importance of the Cathode-Electrolyte Interphase | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Materials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | LONG-CYCLE LIFE | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PROPERTIES | - |
dc.subject.keywordPlus | LITHIUM | - |
dc.subject.keywordPlus | SPINEL | - |
dc.subject.keywordPlus | BATTERIES | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | LAYER | - |
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