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| 001 | 906974 | ||
| 005 | 20240709081955.0 | ||
| 024 | 7 | _ | |a 10.1016/j.electacta.2022.140181 |2 doi |
| 024 | 7 | _ | |a 0013-4686 |2 ISSN |
| 024 | 7 | _ | |a 1873-3859 |2 ISSN |
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| 037 | _ | _ | |a FZJ-2022-01787 |
| 082 | _ | _ | |a 540 |
| 100 | 1 | _ | |a Atik, Jaschar |0 P:(DE-Juel1)174235 |b 0 |
| 245 | _ | _ | |a Local superconcentration via solvating ionic liquid electrolytes for safe 4.3V lithium metal batteries |
| 260 | _ | _ | |a New York, NY [u.a.] |c 2022 |b Elsevier |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 336 | 7 | _ | |a Journal Article |b journal |m journal |0 PUB:(DE-HGF)16 |s 1648561687_1458 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
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| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 520 | _ | _ | |a A novel solvating ionic liquid (SIL), N-methyl N-oligo(ethylene oxide)pyrrolidinium bis(fluorosulfonyl)imide (Pyr1,(2O)7FSI) was synthesized and used to prepare binary and ternary liquid electrolytes with LiFSI as conducting salt and 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether (TTE) as a non-solvating low viscosity co-solvent. Thereby, the binary superconcentrated liquid electrolyte (i.e., 6.8 m LiFSI in Pyr1,(2O)7FSI) reaches a Li+ ion transference number of 0.25 ± 0.02. To enhance the ionic conductivity and separator wetting, the binary electrolyte was mixed with TTE leading to local superconcentrated Li+ ion solvation structures as shown by Raman measurements. These ternary electrolytes exhibit improved wettability, excellent safety and allow cycling in NMC622||Li cells and Cu||Li cells with Coulombic efficiencies of up to 99.9% and 98.5%, respectively, and a capacity retention of 84% for NMC622||Li cells with the electrolyte 2.0 m LiFSI, Pyr1,(2O)7FSI:TTE (1:1 wt%) after 100 cycles vs. a cell failure after 35 cycles for the state-of-the-art containing IL N‑butyl‑N-methylpyrrolidinium FSI electrolyte. |
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| 588 | _ | _ | |a Dataset connected to CrossRef, Journals: juser.fz-juelich.de |
| 700 | 1 | _ | |a Winter, Martin |0 P:(DE-Juel1)166130 |b 1 |u fzj |
| 700 | 1 | _ | |a Paillard, Elie |0 P:(DE-Juel1)166311 |b 2 |e Corresponding author |
| 773 | _ | _ | |a 10.1016/j.electacta.2022.140181 |g Vol. 415, p. 140181 - |0 PERI:(DE-600)1483548-4 |p 140181 - |t Electrochimica acta |v 415 |y 2022 |x 0013-4686 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/906974/files/GetFileAttachment_Paillard.pdf |y Published on 2022-03-10. Available in OpenAccess from 2024-03-10. |
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