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@INPROCEEDINGS{Lobe:860161,
      author       = {Lobe, Sandra and Dellen, Christian and Tsai, Chih-Long and
                      Uhlenbruck, Sven and Guillon, Olivier},
      title        = {{T}hin film deposition of garnet electrolytes for batteries
                      with high energy density},
      reportid     = {FZJ-2019-00947},
      year         = {2018},
      abstract     = {Nowadays, important research topics in the field of
                      batteries are high energy densities as well as high inherent
                      safety of the battery cells. Ceramic solid electrolytes are
                      one possibility to reach both goals in one cell. Safety is
                      given by the chemical and thermal stability of the ceramics.
                      High energy density can be obtained by cells with higher
                      voltages and/ or higher capacities, for example by using
                      lithium metal as anode material and cathode active materials
                      with potentials higher than 4.5 V vs. lithium metal. Garnet
                      electrolytes based on the composition Li7-xLa3Zr2-xTaxO12
                      show an excellent stability in contact with lithium metal
                      and resist voltages of more than 5 V. Applied as a thin
                      film, high gravimetric and volumetric energy densities can
                      be achieved. In recent years different techniques were used
                      for garnet thin film deposition, like sputtering, pulsed
                      laser deposition, chemical vapor deposition and wet-chemical
                      methods. However, a full cell with a garnet-structured thin
                      film electrolyte was not shown yet. In this presentation we
                      will discuss the challenges which are linked to garnet thin
                      film deposition. The discussion will be based on our
                      experiences from experimental work with sputter deposition
                      supplemented by results from other methods. We will show
                      characteristic examples of different deposition parameters;
                      especially the substrate material and the deposition
                      temperature will be addressed. Furthermore, the influence of
                      post-annealing on the thin films will be discussed. The thin
                      films are analyzed regarding their chemical and
                      electrochemical properties, e.g. by X-ray diffraction,
                      µ-Raman spectroscopy, scanning electron microscopy and
                      electrochemical impedance spectroscopy.},
      month         = {Nov},
      date          = {2018-11-14},
      organization  = {3rd Bunsen Kolloquium on Solid State
                       Batteries, Frankfurt/Main (Germany), 14
                       Nov 2018 - 16 Nov 2018},
      subtyp        = {After Call},
      cin          = {IEK-1},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {131 - Electrochemical Storage (POF3-131)},
      pid          = {G:(DE-HGF)POF3-131},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://juser.fz-juelich.de/record/860161},
}