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@ARTICLE{Cao:828997,
      author       = {Cao, Xia and He, Xin and Wang, Jun and Liu, Haidong and
                      Röser, Stephan and Rezaei Rad, Babak and Evertz, Marco and
                      Streipert, Benjamin and Li, Jie and Wagner, Ralf and Winter,
                      Martin and Cekic-Laskovic, Isidora},
      title        = {{H}igh {V}oltage {L}i{N}i $_{0.5}$ {M}n $_{1.5}$ {O} $_{4}$
                      /{L}i $_{4}$ {T}i $_{5}$ {O} $_{12}$ {L}ithium {I}on {C}ells
                      at {E}levated {T}emperatures: {C}arbonate- versus {I}onic
                      {L}iquid-{B}ased {E}lectrolytes},
      journal      = {ACS applied materials $\&$ interfaces},
      volume       = {8},
      number       = {39},
      issn         = {1944-8252},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2017-02814},
      pages        = {25971 - 25978},
      year         = {2016},
      abstract     = {Thanks to its high operating voltage, the LiNi0.5Mn1.5O4
                      (LNMO) spinel represents a promising next-generation cathode
                      material candidate for Lithium ion batteries. However,
                      LNMO-based full-cells with organic carbonate solvent
                      electrolytes suffer from severe capacity fading issues,
                      associated with electrolyte decomposition and concurrent
                      degradative reactions at the electrode/electrolyte
                      interface, especially at elevated temperatures. As promising
                      alternatives, two selected LiTFSI/pyrrolidinium
                      bis(trifluoromethane-sulfonyl)imide room temperature ionic
                      liquid (RTIL) based electrolytes with inherent thermal
                      stability were investigated in this work. Linear sweep
                      voltammetry (LSV) profiles of the investigated LiTFSI/RTIL
                      electrolytes display much higher oxidative stability
                      compared to the state-of-the-art LiPF6/organic carbonate
                      based electrolyte at elevated temperatures. Cycling
                      performance of the LNMO/Li4Ti5O12 (LTO) full-cells with
                      LiTFSI/RTIL electrolytes reveals remarkable improvements
                      with respect to capacity retention and Coulombic efficiency.
                      Scanning electron microscopy (SEM) images and X-ray
                      diffraction (XRD) patterns indicate maintained pristine
                      morphology and structure of LNMO particles after 50 cycles
                      at 0.5C. The investigated LiTFSI/RTIL based electrolytes
                      outperform the LiPF6/organic carbonate-based electrolyte in
                      terms of cycling performance in LNMO/LTO full-cells at
                      elevated temperatures.},
      cin          = {IEK-12},
      ddc          = {540},
      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:000384951800038},
      doi          = {10.1021/acsami.6b07687},
      url          = {https://juser.fz-juelich.de/record/828997},
}