DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Lina | ko |
dc.contributor.author | Jang, Taegyu | ko |
dc.contributor.author | Byon, Hye Ryung | ko |
dc.date.accessioned | 2023-07-04T02:00:32Z | - |
dc.date.available | 2023-07-04T02:00:32Z | - |
dc.date.created | 2023-07-03 | - |
dc.date.issued | 2023-08 | - |
dc.identifier.citation | JOURNAL OF POWER SOURCES, v.576 | - |
dc.identifier.issn | 0378-7753 | - |
dc.identifier.uri | http://hdl.handle.net/10203/310234 | - |
dc.description.abstract | Advanced electrolyte solutions for lithium (Li) metal batteries have been developed to improve their compara-bility with Li electrodes and enhance high oxidative stability. While the solvation structures of Li+ are critical for determining the quality of the solid electrolyte interphase (SEI) layer and cyclability, there is limited under-standing of these correlations for co-solvent systems and long-term cycles. Herein, we investigate the role of fluorinated ether-based co-solvents consisting of 2,2,3,3-tetrafluoro-1,4-dimethoxylbutane (FDMB) and 1,2-diethoxyethane (DEE) with 1 M lithium bis(trifluoromethanesulfonyl)imide (LiFSI). FDMB exhibits high oxida-tive stability and low flammability, and the addition of DEE improves ionic conductivity by sharing Li+ coor-dination with FDMB. SEI formation is derived from FSI-. Notably, increasing the DEE volume ratio promotes lithium fluoride (LiF) deposition and dissolution of fragmented FSI- into the electrolyte solution. FDMB inhibits such dissolution and enhances the formation of lithium nitride (Li3N) and lithium oxide (Li2O) in the SEI. Thus, the DEE/FDMB co-solvents complemented the weaknesses of the two solvents and offer the low SEI resistance. It explains optimal cycling performance for Li|Li and Li|LiFePO4 cells with 1:6 DEE/FDMB with 1 M LiFSI compared to that of the single DEE and FDMB. | - |
dc.language | English | - |
dc.publisher | ELSEVIER | - |
dc.title | Fluorinated ether-based co-solvent electrolytes for lithium-metal batteries: High ionic conductivity and suppressed dissolution of fragmented anions | - |
dc.type | Article | - |
dc.identifier.wosid | 001010382800001 | - |
dc.identifier.scopusid | 2-s2.0-85160070021 | - |
dc.type.rims | ART | - |
dc.citation.volume | 576 | - |
dc.citation.publicationname | JOURNAL OF POWER SOURCES | - |
dc.identifier.doi | 10.1016/j.jpowsour.2023.233237 | - |
dc.contributor.localauthor | Byon, Hye Ryung | - |
dc.contributor.nonIdAuthor | Kim, Lina | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Li-metal batteries | - |
dc.subject.keywordAuthor | Fluorinated ether | - |
dc.subject.keywordAuthor | Solvation structure | - |
dc.subject.keywordAuthor | Solid electrolyte interphase | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordPlus | SOLVENTS | - |
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