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DC Field | Value | Language |
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dc.citation.startPage | 230923 | - |
dc.citation.title | JOURNAL OF POWER SOURCES | - |
dc.citation.volume | 521 | - |
dc.contributor.author | Park, Chanhyun | - |
dc.contributor.author | Lee, Eunryeol | - |
dc.contributor.author | Kim, Su Hwan | - |
dc.contributor.author | Han, Jung-Gu | - |
dc.contributor.author | Hwang, Chihyun | - |
dc.contributor.author | Joo, Se Hun | - |
dc.contributor.author | Baek, Kyungeun | - |
dc.contributor.author | Kang, Seok Ju | - |
dc.contributor.author | Kwak, Sang Kyu | - |
dc.contributor.author | Song, Hyun-Kon | - |
dc.contributor.author | Choi, Nam-Soon | - |
dc.date.accessioned | 2023-12-21T14:39:20Z | - |
dc.date.available | 2023-12-21T14:39:20Z | - |
dc.date.created | 2022-01-03 | - |
dc.date.issued | 2022-02 | - |
dc.description.abstract | High-capacity LiNi1-x-yCoxMnyO2 (NCM) (x + y ≤ 0.2) is a potential candidate for realizing high-energy-density lithium-ion batteries (LIBs). However, successful application of this cathode requires overcoming the irreversible phase transition (layered-to-spinel/rock-salt), interfacial instability caused by residual lithium compounds, and the electrolyte oxidation promoted by highly oxidized Ni4+. In this study, we investigate the roles of fullerene with malonic acid moieties (MA-C60) as a superoxide dismutase mimetic (SODm) electrolyte additive in LIBs to deactivate reactive radical species (O2•-, LiOCO3•, and Li(CO3)2•) induced by electrochemical oxidation of residual lithium compound, Li2CO3 on the LiNi0.8Co0.1Mn0.1O2 (NCM811) cathode surface and to scavenge trace water to avoid undesirable hydrolysis of LiPF6. Further, MA-C60 maintains the structural stability of NCM811 cathodes and mitigates the parasitic reaction of residual lithium compounds with LiPF6 through the formation of a stable cathode–electrolyte interface. Our findings showed that MA-C60 helps overcome the challenges associated with Li2CO3 oxidation at the NCM811 cathode, which produces CO2 gas and O2•- that react with the solvent molecules. | - |
dc.identifier.bibliographicCitation | JOURNAL OF POWER SOURCES, v.521, pp.230923 | - |
dc.identifier.doi | 10.1016/j.jpowsour.2021.230923 | - |
dc.identifier.issn | 0378-7753 | - |
dc.identifier.scopusid | 2-s2.0-85121707091 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/55863 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0378775321014063?via%3Dihub | - |
dc.identifier.wosid | 000742859600003 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER | - |
dc.title | Malonic-acid-functionalized fullerene enables the interfacial stabilization of Ni-rich cathodes in lithium-ion batteries | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical;Electrochemistry;Energy & Fuels;Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry;Electrochemistry;Energy & Fuels;Materials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Lithium-ion batteries | - |
dc.subject.keywordAuthor | Cathode-electrolyte interface | - |
dc.subject.keywordAuthor | Residual lithium compounds | - |
dc.subject.keywordAuthor | Electrolyte additives | - |
dc.subject.keywordAuthor | Reactive oxygen species | - |
dc.subject.keywordPlus | LAYERED CATHODE | - |
dc.subject.keywordPlus | THERMAL-STABILITY | - |
dc.subject.keywordPlus | CYCLE-LIFE | - |
dc.subject.keywordPlus | SURFACE | - |
dc.subject.keywordPlus | MECHANISM | - |
dc.subject.keywordPlus | ENERGY | - |
dc.subject.keywordPlus | ELECTROLYTES | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | DISSOLUTION | - |
dc.subject.keywordPlus | CHALLENGES | - |
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