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@ARTICLE{Ye:877638,
      author       = {Ye, Ruijie and Tsai, Chih-Long and Ihrig, Martin and
                      Sevinc, Serkan and Rosen, Melanie and Dashjav, Enkhtsetseg
                      and Sohn, Yoo Jung and Figgemeier, Egbert and Finsterbusch,
                      Martin},
      title        = {{W}ater-based fabrication of garnet-based solid electrolyte
                      separators for solid-state lithium batteries},
      journal      = {Green chemistry},
      volume       = {22},
      number       = {15},
      issn         = {1463-9262},
      address      = {Cambridge},
      publisher    = {RSC},
      reportid     = {FZJ-2020-02353},
      pages        = {4952-4961},
      year         = {2020},
      abstract     = {Garnet-type Li7La3Zr2O12 (LLZ) is regarded as a promising
                      oxide-based solid electrolyte (SE) for solid-state lithium
                      batteries (SSLBs) or other advanced Li-battery concepts like
                      Li–air or Li–S batteries. A thin free-standing LLZ sheet
                      can be fabricated by tape-casting and used e.g. as
                      separators in SSLBs, since tape casting is an industrially
                      established process and enables large-scale production of
                      such SEs. However, organic solvents and additives employed
                      in conventional slurry recipes for tape-casting give rise to
                      health and safety concerns and also cause a high cost for
                      solvent recovery. Hence, development of a green, water-based
                      processing route can reduce both manufacturing costs and
                      environmental footprint. In this work, we developed a
                      tape-casting process for LLZ SEs using water as solvent, the
                      water-soluble biopolymer methylcellulose as binder and other
                      eco-friendly polymers as plasticizers. Although a Li+/H+
                      exchange takes place during our procedure, we demonstrate
                      that the Li+/H+ exchange reaction is reversible in our
                      procedure and results in the formation of stoichiometric
                      cubic LLZ at the end. The obtained free-standing LLZ sheets
                      with thickness of 150 μm and relative density of approx.
                      $90\%$ offer an ionic conductivity of 0.15 mS cm−1 at room
                      temperature. We thereby prove that it is feasible to use
                      water as dispersion medium and eco-friendly polymer
                      additives for the fabrication of thin garnet-based SE
                      layers.},
      cin          = {IEK-12 / IEK-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-12-20141217 / I:(DE-Juel1)IEK-1-20101013},
      pnm          = {131 - Electrochemical Storage (POF3-131)},
      pid          = {G:(DE-HGF)POF3-131},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000555342200011},
      doi          = {10.1039/D0GC01009J},
      url          = {https://juser.fz-juelich.de/record/877638},
}