% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Janssen:851136,
      author       = {Janssen, Pia and Streipert, Benjamin and Krafft, Roman and
                      Murmann, Patrick and Wagner, Ralf and Lewis-Alleyne, Lesley
                      and Röschenthaler, Gerd-Volker and Winter, Martin and
                      Cekic-Laskovic, Isidora},
      title        = {{S}hutdown potential adjustment of modified carbene adducts
                      as additives for lithium ion battery electrolytes},
      journal      = {Journal of power sources},
      volume       = {367},
      issn         = {0378-7753},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2018-04838},
      pages        = {72 - 79},
      year         = {2017},
      abstract     = {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.},
      cin          = {IEK-12},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-12-20141217},
      pnm          = {131 - Electrochemical Storage (POF3-131)},
      pid          = {G:(DE-HGF)POF3-131},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000415780000010},
      doi          = {10.1016/j.jpowsour.2017.09.023},
      url          = {https://juser.fz-juelich.de/record/851136},
}