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| Hauptseite > Publikationsdatenbank > Interfacial solvation-structure regulation for stable Li metal anode by a desolvation coating technique > print |
| Hauptseite > Publikationsdatenbank > Interfacial solvation-structure regulation for stable Li metal anode by a desolvation coating technique > print |
| 001 | 1021295 | ||
| 005 | 20250204113754.0 | ||
| 024 | 7 | _ | |a 10.1073/pnas.2311732121 |2 doi |
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| 024 | 7 | _ | |a 1091-6490 |2 ISSN |
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| 037 | _ | _ | |a FZJ-2024-00722 |
| 082 | _ | _ | |a 500 |
| 100 | 1 | _ | |a Li, Guo-Xing |0 0000-0003-0568-8556 |b 0 |e First author |
| 245 | _ | _ | |a Interfacial solvation-structure regulation for stable Li metal anode by a desolvation coating technique |
| 260 | _ | _ | |a Washington, DC |c 2024 |b National Acad. of Sciences |
| 336 | 7 | _ | |a article |2 DRIVER |
| 336 | 7 | _ | |a Output Types/Journal article |2 DataCite |
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| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 520 | _ | _ | |a Rechargeable lithium (Li) metal batteries face challenges in achieving stable cycling due to the instability of the solid electrolyte interphase (SEI). The Li-ion solvation structure and its desolvation process are crucial for the formation of a stable SEI on Li metal anodes and improving Li plating/stripping kinetics. This research introduces an interfacial desolvation coating technique to actively modulate the Li-ion solvation structure at the Li metal interface and regulate the participation of the electrolyte solvent in SEI formation. Through experimental investigations conducted using a carbonate electrolyte with limited compatibility to Li metal, the optimized desolvation coating layer, composed of 12-crown-4 ether-modified silica materials, selectively displaces strongly coordinating solvents while simultaneously enriching weakly coordinating fluorinated solvents at the Li metal/electrolyte interface. This selective desolvation and enrichment effect reduce solvent participation to SEI and thus facilitate the formation of a LiF-dominant SEI with greatly reduced organic species on the Li metal surface, as conclusively verified through various characterization techniques including XPS, quantitative NMR, operando NMR, cryo-TEM, EELS, and EDS. The interfacial desolvation coating technique enables excellent rate cycling stability (i.e., 1C) of the Li metal anode and prolonged cycling life of the Li||LiCoO2 pouch cell in the conventional carbonate electrolyte (E/C 2.6 g/Ah), with 80% capacity retention after 333 cycles. |
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| 700 | 1 | _ | |a Lennartz, Peter |0 P:(DE-Juel1)164855 |b 1 |
| 700 | 1 | _ | |a Koverga, Volodymyr |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Kou, Rong |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Nguyen, Au |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Jiang, Heng |0 P:(DE-HGF)0 |b 5 |
| 700 | 1 | _ | |a Liao, Meng |0 0000-0002-8569-8860 |b 6 |
| 700 | 1 | _ | |a Wang, Daiwei |0 P:(DE-HGF)0 |b 7 |
| 700 | 1 | _ | |a Dandu, Naveen |0 P:(DE-HGF)0 |b 8 |
| 700 | 1 | _ | |a Zepeda, Michael |0 0009-0003-4910-7159 |b 9 |
| 700 | 1 | _ | |a Wang, Haiying |0 P:(DE-HGF)0 |b 10 |
| 700 | 1 | _ | |a Wang, Ke |0 P:(DE-HGF)0 |b 11 |
| 700 | 1 | _ | |a Ngo, Anh T. |0 P:(DE-HGF)0 |b 12 |
| 700 | 1 | _ | |a Brunklaus, Gunther |0 P:(DE-Juel1)172047 |b 13 |e Corresponding author |
| 700 | 1 | _ | |a Wang, Donghai |0 0000-0001-7261-8510 |b 14 |e Corresponding author |
| 773 | _ | _ | |a 10.1073/pnas.2311732121 |g Vol. 121, no. 4, p. e2311732121 |0 PERI:(DE-600)1461794-8 |n 4 |p e2311732121 |t Proceedings of the National Academy of Sciences of the United States of America |v 121 |y 2024 |x 0027-8424 |
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