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DC Field | Value | Language |
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dc.citation.endPage | 394 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 387 | - |
dc.citation.title | ACS ENERGY LETTERS | - |
dc.citation.volume | 6 | - |
dc.contributor.author | Chae, Sujong | - |
dc.contributor.author | Kwak, Won-Jin | - |
dc.contributor.author | Han, Kee Sung | - |
dc.contributor.author | Li, Shuang | - |
dc.contributor.author | Engelhard, Mark H. | - |
dc.contributor.author | Hu, Jiangtao | - |
dc.contributor.author | Wang, Chongmin | - |
dc.contributor.author | Li, Xiaolin | - |
dc.contributor.author | Zhang, Ji-Guang | - |
dc.date.accessioned | 2023-12-21T16:12:49Z | - |
dc.date.available | 2023-12-21T16:12:49Z | - |
dc.date.created | 2023-07-14 | - |
dc.date.issued | 2021-02 | - |
dc.description.abstract | A silicon (Si) anode is a high-capacity alternative for carbonaceous anodes in lithium ion batteries. However, a large volume change during cycling and continuous side reactions with the electrolyte significantly limit its applications. We designed a localized highconcentration electrolyte using 1H,1H,5H-octafluoropentyl 1,1,2,2-tetra-fluoroethyl ether (OTE) as a diluent with the desired molecular structure tailored for a Si anode operating over a wide temperature range. This electrolyte exhibits an optimized ion solvation structure and enabled better cycling stability of Si anodes over a wide temperature range. Full cells with Si/graphite composite anodes and LiNi0.5Mn0.3Co0.2O2 cathodes retained 80% of their capacity after 500 cycles in 1.74 M lithium bis(fluorosulfonyl)imide in dimethyl carbonate with OTE (0.51:0.84:0.84) with enhanced thermal stability. A Si anode cycled in the new electrolyte exhibits a much thinner solid electrolyte interphase and a well-preserved dense structure. The electrolyte design principle developed in this work can be used to extend the cycle life of other high-capacity electrode materials with large volume changes. | - |
dc.identifier.bibliographicCitation | ACS ENERGY LETTERS, v.6, no.2, pp.387 - 394 | - |
dc.identifier.doi | 10.1021/acsenergylett.0c02214 | - |
dc.identifier.issn | 2380-8195 | - |
dc.identifier.scopusid | 2-s2.0-85099648067 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/64847 | - |
dc.identifier.wosid | 000619803400011 | - |
dc.language | 영어 | - |
dc.publisher | American Chemical Society (ACS) | - |
dc.title | Rational Design of Electrolytes for Long-Term Cycling of Si Anodes over a Wide Temperature Range | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical;Electrochemistry;Energy & Fuels;Nanoscience & Nanotechnology;Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry;Electrochemistry;Energy & Fuels;Science & Technology - Other Topics;Materials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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