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| Hauptseite > Publikationsdatenbank > Triphenylphosphine Oxide as Highly Effective Electrolyte Additive for Graphite/NMC811 Lithium Ion Cells > print |
| Hauptseite > Publikationsdatenbank > Triphenylphosphine Oxide as Highly Effective Electrolyte Additive for Graphite/NMC811 Lithium Ion Cells > print |
| 001 | 851243 | ||
| 005 | 20240712113114.0 | ||
| 024 | 7 | _ | |a 10.1021/acs.chemmater.8b00413 |2 doi |
| 024 | 7 | _ | |a 0897-4756 |2 ISSN |
| 024 | 7 | _ | |a 1520-5002 |2 ISSN |
| 024 | 7 | _ | |a WOS:000431088400029 |2 WOS |
| 037 | _ | _ | |a FZJ-2018-04938 |
| 082 | _ | _ | |a 540 |
| 100 | 1 | _ | |a Beltrop, Kolja |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Triphenylphosphine Oxide as Highly Effective Electrolyte Additive for Graphite/NMC811 Lithium Ion Cells |
| 260 | _ | _ | |a Washington, DC |c 2018 |b American Chemical Society |
| 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 1534402972_23191 |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 Nickel-rich layered oxide materials (LiNixMnyCo1–x–yO2, x ≥ 0.8, LiNMC) attract great interest for application as positive electrode in lithium ion batteries (LIBs) due to high specific discharge capacities at moderate upper cutoff voltages below 4.4 V vs Li/Li+. However, the comparatively poor cycling stability as well as inferior safety characteristics prevent this material class from commercial application so far. Against this background, new electrolyte formulations including additives are a major prerequisite for a sufficient electrochemical performance of Ni-rich NMC materials. In this work, we introduce triphenylphosphine oxide (TPPO) as electrolyte additive for the application in graphite/LiNi0.8Mn0.1Co0.1O2 (NMC811) cells. The addition of only 0.5 wt % TPPO into a carbonate-based electrolyte (LiPF6 in EC:EMC) significantly increases the first cycle Coulombic efficiency as well as the reversible specific capacity and improves the capacity retention of the LIB full cell cycled between 2.8 and 4.3 V. Electrochemical results indicate that the full cell capacity fade is predominantly caused by active lithium loss at the negative electrode. In this contribution, X-ray photoelectron spectroscopy and inductively coupled plasma-mass spectrometry analysis confirm the participation of the electrolyte additive in the solid electrolyte interphase formation on the negative electrode as well as in the cathode electrolyte interphase formation on the positive electrode, thus, effectively reducing the active lithium loss during cycling. Furthermore, the performance of the TPPO additive is compared to literature known electrolyte additives including triphenylphosphine, vinylene carbonate, and diphenyl carbonate demonstrating the outstanding working ability of TPPO in graphite/NMC811 cells. |
| 536 | _ | _ | |a 131 - Electrochemical Storage (POF3-131) |0 G:(DE-HGF)POF3-131 |c POF3-131 |f POF III |x 0 |
| 588 | _ | _ | |a Dataset connected to CrossRef |
| 700 | 1 | _ | |a Klein, Sven |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Nölle, Roman |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Wilken, Andrea |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Lee, Juhyon J. |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Köster, Thomas K.-J. |0 P:(DE-HGF)0 |b 5 |
| 700 | 1 | _ | |a Reiter, Jakub |0 P:(DE-HGF)0 |b 6 |
| 700 | 1 | _ | |a Tao, Liang |0 P:(DE-HGF)0 |b 7 |
| 700 | 1 | _ | |a Liang, Chengdu |0 P:(DE-HGF)0 |b 8 |
| 700 | 1 | _ | |a Winter, Martin |0 P:(DE-Juel1)166130 |b 9 |u fzj |
| 700 | 1 | _ | |a Qi, Xin |0 P:(DE-HGF)0 |b 10 |e Corresponding author |
| 700 | 1 | _ | |a Placke, Tobias |0 0000-0002-2097-5193 |b 11 |e Corresponding author |
| 773 | _ | _ | |a 10.1021/acs.chemmater.8b00413 |g Vol. 30, no. 8, p. 2726 - 2741 |0 PERI:(DE-600)1500399-1 |n 8 |p 2726 - 2741 |t Chemistry of materials |v 30 |y 2018 |x 1520-5002 |
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