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| Hauptseite > Publikationsdatenbank > Shutdown potential adjustment of modified carbene adducts as additives for lithium ion battery electrolytes > print |
| Hauptseite > Publikationsdatenbank > Shutdown potential adjustment of modified carbene adducts as additives for lithium ion battery electrolytes > print |
| 001 | 851136 | ||
| 005 | 20240712113112.0 | ||
| 024 | 7 | _ | |a 10.1016/j.jpowsour.2017.09.023 |2 doi |
| 024 | 7 | _ | |a 0378-7753 |2 ISSN |
| 024 | 7 | _ | |a 1873-2755 |2 ISSN |
| 024 | 7 | _ | |a WOS:000415780000010 |2 WOS |
| 037 | _ | _ | |a FZJ-2018-04838 |
| 082 | _ | _ | |a 620 |
| 100 | 1 | _ | |a Janssen, Pia |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Shutdown potential adjustment of modified carbene adducts as additives for lithium ion battery electrolytes |
| 260 | _ | _ | |a New York, NY [u.a.] |c 2017 |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 1534313379_21736 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
| 336 | 7 | _ | |a JOURNAL_ARTICLE |2 ORCID |
| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 520 | _ | _ | |a To improve the intrinsic safety of lithium ion batteries (LIBs) by preventing cells from a thermal runaway, we studied two carbene adduct electrolyte additives. The recently synthesized compounds (1,3-dimethylimidazolidin-2-μm-trifluoroborate (NHC-BF3) and 1,3-dimethylimidazolidin-2-μm-tetrafluorotrifluoromethylphosphate (NHC-PF4CF3)) were investigated on LiNi1/3Co1/3Mn1/3O2 (NMC111) electrodes in Li metal and Li-ion cell setups as overcharge protection shutdown additives in 1M LiPF6 in EC:DEC (3:7, by wt.) electrolyte. By varying the NHC-ligand (-BF3, -PF5, -PF4CF3) in the molecule, the shutdown potential of the investigated carbene adduct electrolyte additives can be tailored for specific applications with different cut-off potentials. NHC-BF3 was identified as a promising candidate for the application with NMC111 electrodes up to 4.4 V vs. Li/Li+, whereas the carbene adduct NHC-PF4CF3 is ideal for the high-voltage application with the NMC-based electrode up to 4.6 V vs. Li/Li+. Next to electrochemical investigations in NMC111/Li and NMC111/graphite cells, Atomic Force Microscopy (AFM) and X-Ray Photoelectron Spectroscopy (XPS) were performed to verify the presence of a decomposition layer on the cathode, responsible for the shutdown effect. Furthermore, it has been proven that the investigated electrolyte additives have no influence on the cell performance under normal conditions in both, Li metal and Li-ion cell setups. |
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| 700 | 1 | _ | |a Streipert, Benjamin |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Krafft, Roman |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Murmann, Patrick |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Wagner, Ralf |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Lewis-Alleyne, Lesley |0 P:(DE-HGF)0 |b 5 |
| 700 | 1 | _ | |a Röschenthaler, Gerd-Volker |0 P:(DE-HGF)0 |b 6 |
| 700 | 1 | _ | |a Winter, Martin |0 P:(DE-Juel1)166130 |b 7 |u fzj |
| 700 | 1 | _ | |a Cekic-Laskovic, Isidora |0 P:(DE-Juel1)171204 |b 8 |e Corresponding author |u fzj |
| 773 | _ | _ | |a 10.1016/j.jpowsour.2017.09.023 |g Vol. 367, p. 72 - 79 |0 PERI:(DE-600)1491915-1 |p 72 - 79 |t Journal of power sources |v 367 |y 2017 |x 0378-7753 |
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