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@ARTICLE{Oldiges:858317,
      author       = {Oldiges, Kristina and von Aspern, Natascha and
                      Cekic-Laskovic, Isidora and Winter, Martin and Brunklaus,
                      Gunther},
      title        = {{I}mpact of {T}rifluoromethylation of {A}diponitrile on
                      {A}luminum {D}issolution {B}ehavior in {D}initrile-{B}ased
                      {E}lectrolytes},
      journal      = {Journal of the Electrochemical Society},
      volume       = {165},
      number       = {16},
      issn         = {0013-4651},
      address      = {Pennington, NJ},
      publisher    = {Electrochemical Soc.},
      reportid     = {FZJ-2018-07205},
      pages        = {A3773 - A3781},
      year         = {2018},
      abstract     = {Aluminum dissolution behavior of adiponitrile (ADN) and its
                      trifluoromethylated derivative
                      3-(trifluoromethyl)adiponitrile (ADN-CF3) as single or
                      co-solvent with propylene carbonate (PC) was determined in
                      electrolytes with lithium bis(trifluoromethylsulfonyl) imide
                      (LiTFSI) as conducting salt via selected electrochemical,
                      spectroscopic and physicochemical methods. ADN-CF3 is
                      introduced as a promising electrolyte solvent affording
                      reduced aluminum dissolution in the presence of imide salts.
                      In cases where neither electrolyte components nor
                      decomposition products thereof enable the formation of
                      protective surface layers on aluminum current collectors,
                      both the viscosity and relative permittivity of the solvents
                      could be identified as key parameters for reducing aluminum
                      dissolution. High viscosities reduce the mobility of
                      involved species yielding increased complex formation of Li+
                      and TFSI− ions or solvent molecules, hindering a reaction
                      of TFSI− anions with the passivating aluminum oxide
                      surface to Al(TFSI)x. Low relative permittivity yields
                      lesser ionic dissociation of the lithium salt and lower
                      solubility of Al(TFSI)x species in viscous electrolytes.
                      Hence, reduced aluminum dissolution was observed by
                      substituting electrolyte solvents from PC to ADN to ADN-CF3.
                      The obtained results significantly contribute to better
                      understanding of anodic aluminum dissolution behavior, while
                      encouraging future design of advanced electrolytes with high
                      viscosities and low-permittivity solvents that possess high
                      oxidative stabilities.},
      cin          = {IEK-12},
      ddc          = {660},
      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:000452659900002},
      doi          = {10.1149/2.0461816jes},
      url          = {https://juser.fz-juelich.de/record/858317},
}