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@ARTICLE{Ghaur:1025081,
      author       = {Ghaur, Adjmal and Pfeiffer, Felix and Diddens, Diddo and
                      Peschel, Christoph and Dienwiebel, Iris and Du, Leilei and
                      Profanter, Laurin and Weiling, Matthias and Winter, Martin
                      and Placke, Tobias and Nowak, Sascha and Baghernejad,
                      Masoud},
      title        = {{R}ethinking the {R}ole of {F}ormerly {S}ub-{S}ufficient
                      {I}ndustrial/{S}ynthesized {SEI} {A}dditive {C}ompounds - a
                      {N}ew {P}erspective},
      journal      = {Meeting abstracts},
      volume       = {MA2023-01},
      number       = {7},
      issn         = {1091-8213},
      address      = {Pennington, NJ},
      publisher    = {Soc.},
      reportid     = {FZJ-2024-02669},
      pages        = {2753 - 2753},
      year         = {2023},
      note         = {Hierbei handelt es sich lediglich um einen Abstract.},
      abstract     = {In order to improve the performance of lithium-ion
                      batteries (LIBs), novel electrolytes are of primary
                      importance. Recently, fluorinated cyclic phosphazene
                      derivatives in combination with fluoroethylene carbonate
                      (FEC) are mentioned in the literature as a promising
                      electrolyte additive combination, which can decompose to
                      form a dense, uniform, and thin protective layer on the
                      surface of the anode and cathode electrode.[1,2]
                      Additionally, suppressing further electrolyte decomposition
                      and electrode corrosion, thus protecting the structural
                      destruction of the electrodes, are mentioned within this
                      electrolyte composition.[1–3] Furthermore, galvanostatic
                      charge and discharge experiments with different cell
                      composition materials demonstrate that fluorinated cyclic
                      phosphazene compounds as additional additive material tend
                      to improve cycling stability.[1,3,4] Although the
                      electrochemical aspects of cyclic fluorinated phosphazene
                      compounds combined with FEC are briefly introduced, it is
                      still not fully clear how these two compound classes
                      interact constructively during operation mode. Thus, the
                      positive synergistic effect of
                      FEC/Hexafluorocyclotriphosphazene (HFPN)-derivatives on the
                      electrochemical performance during cell operation is not
                      enlightened. The focus of this study is to investigate the
                      complementary effect of FEC and
                      ethoxy(pentafluoro)cyclotriphosphazene (EtPFPN) as additive
                      compounds in an aprotic organic electrolyte in
                      LiNi0.5Co0.2Mn0.3O (NCM523) SiOx/C full cells. Furthermore,
                      the formation mechanism of lithium ethyl methyl carbonate
                      (LEMC)-EtPFPN interfacial products and the reaction
                      mechanism of lithium alkoxide with EtPFPN are proposed and
                      supported with DFT measurements. Additionally, a new effect
                      of FEC regarding the SEI formation will be introduced. The
                      EtPFPN decomposition compounds in the electrolyte after the
                      SEI formation have been investigated via gas
                      chromatography-mass spectrometry (GC-MS) and gas
                      chromatography-high resolution mass spectrometry (GC-HRMS).
                      The electrode electrolyte interface investigation of the SEI
                      has been performed viain-situ shell-isolated nanoparticle
                      enhanced Raman spectroscopy (SHINERS) and scanning electron
                      microscopy (SEM). Constant current cycling is conducted, and
                      in-situ Raman measurements characterize the deposition of
                      electrolyte components and LEMC-EtPFPN traces on the SiOx/C
                      anode material during the SEI formation. Finally, the
                      interplay between EC, EMC, Li-alkoxide, LEMC, FEC, and
                      EtPFPN has been visualized schematically via a reaction
                      mechanism postulated based on analytical data of the
                      electrolyte.[1] A. Ghaur, C. Peschel, I. Dienwiebel, L.
                      Haneke, L. Du, L. Profanter, A. Gomez‐Martin, M. Winter,
                      S. Nowak, T. Placke, Adv Energy Mater2023, 2203503.[2] J.
                      Liu, X. Song, L. Zhou, S. Wang, W. Song, W. Liu, H. Long, L.
                      Zhou, H. Wu, C. Feng, Z. Guo, Nano Energy2018, 46,
                      404–414.[3] Q. Liu, Z. Chen, Y. Liu, Y. Hong, W. Wang, J.
                      Wang, B. Zhao, Y. Xu, J. Wang, X. Fan, L. Li, H. bin Wu,
                      Energy Storage Mater2021, 37, 521–529.[4] Y.-H. Liu, M.
                      Okano, T. Mukai, K. Inoue, M. Yanagida, T. Sakai, J Power
                      Sources2016, 304, 9–14.},
      cin          = {IEK-12},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-12-20141217},
      pnm          = {1221 - Fundamentals and Materials (POF4-122)},
      pid          = {G:(DE-HGF)POF4-1221},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1149/MA2023-0172753mtgabs},
      url          = {https://juser.fz-juelich.de/record/1025081},
}