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@ARTICLE{Kiyek:1028951,
      author       = {Kiyek, Vivien and Hilger, Martin and Rosen, Melanie and
                      Gross, Jürgen Peter and Mann, Markus and
                      Fattakhova-Rohlfing, Dina and Schwaiger, Ruth and
                      Finsterbusch, Martin and Guillon, Olivier},
      title        = {{W}aste minimization in all-solid-state battery production
                      via re-lithiation of the garnet solid electrolyte {LLZO}},
      journal      = {Journal of power sources},
      volume       = {609},
      issn         = {0378-7753},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2024-04891},
      pages        = {234709 -},
      year         = {2024},
      abstract     = {Oxide-ceramic based electrolytes such as Li7La3Zr2O12
                      (LLZO), are one of the most promising solid electrolytes for
                      application in all-solid-state batteries. However, most of
                      its constituents are listed as critical raw materials,
                      highlighting the need to minimize waste during synthesis and
                      processing. Therefore, we investigated the re-use of aged
                      LLZO powder and aged LLZO green foils produced by
                      tape-casting, an industrial processing route suitable for
                      ASSBs. We established a new synthesis route to fully
                      recovery Li-poor LLZO and pyrochlore phase La2Zr2O7 by
                      simply adding a Li source during firing. By using recycled
                      LLZO powder in a <200 μm thick cast tape, we were able to
                      prove a similar ionic conductivity of 2.1 × 10−4 S cm−1
                      at room temperature and a critical current density of 0.75
                      mA cm−2 at 60 °C compared to fresh powder. This simple
                      and efficient re-synthesis strategy might hold the potential
                      to minimize waste streams of critical raw materials in
                      future industrial production processes of solid-state
                      batteries.},
      cin          = {IMD-2 / IMD-1},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IMD-2-20101013 / I:(DE-Juel1)IMD-1-20101013},
      pnm          = {1222 - Components and Cells (POF4-122)},
      pid          = {G:(DE-HGF)POF4-1222},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001266916100001},
      doi          = {10.1016/j.jpowsour.2024.234709},
      url          = {https://juser.fz-juelich.de/record/1028951},
}