% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@PHDTHESIS{Scheld:1022475,
      author       = {Scheld, Walter Sebastian},
      title        = {{P}hotonic {S}intering of {G}arnet-{B}ased {S}olid-{S}tate
                      {B}atteries},
      volume       = {620},
      school       = {Univ. Duisburg-Essen},
      type         = {Dissertation},
      address      = {Jülich},
      publisher    = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
      reportid     = {FZJ-2024-01469},
      isbn         = {978-3-95806-737-0},
      series       = {Schriften des Forschungszentrums Jülich Reihe Energie $\&$
                      Umwelt / Energy $\&$ Environment},
      pages        = {XII, 153},
      year         = {2024},
      note         = {Dissertation, Univ. Duisburg-Essen, 2023},
      abstract     = {Ceramic solid-state batteries (SSBs) are attracting
                      significant attention worldwide as an alternative to
                      lithium-ion batteries (LIBs). As the organic electrolyte is
                      replaced by a ceramic electrolyte, unprecedented cell-level
                      safety, a greatly extended operating temperature range and a
                      potentially high energy density are expected. Li-ion
                      conductive oxide ceramics such as the garnet type
                      Li7La3Zr2O12 (LLZO) are promising solid electrolytes for
                      future lithium SSBs because they have sufficient ionic
                      conductivity up to 1 mS cm−1 at room temperature that can
                      be tuned by doping elements, can be processed in air, have a
                      wide electrochemical stability window, and have a high
                      stability to Li metal, enabling the use of Li metal anodes.
                      The garnet material is usually obtained in form of powders.
                      Therefore, a sintering step is required to densify the
                      powder and achieve good contact at the various interfaces,
                      which is critical for adequate electrochemical performance.
                      However, the high sintering temperatures, which can exceed
                      1000 °C for garnet materials, lead to the interdiffusion of
                      elements at the interface and the formation of undesirable
                      secondary phases. In particular, most common cathode
                      materials such as layered LiCoO2 (LCO) and
                      LiNi1−x−yMnxCoyO2 (NMC) or spinel LiMn2O4 (LMO) are
                      known to react with LLZO at temperatures as low as 400 °C
                      to 600 °C to form resistive secondary phases that
                      drastically degrade battery performance. Material
                      degradation during processing could be avoided by
                      kinetically controlling the sintering process and
                      drastically shortening the sintering times. Apart from
                      numerous undesirable material interactions, protracted
                      sintering at high temperatures is also energy consuming and
                      thus has a negative impact on production costs. New, fast,
                      scalable, and energy-efficient sintering technologies need
                      to be explored to demonstrate viable manufacturing routes
                      for oxide-ceramic batteries. The objective of this work was
                      to investigate the suitability of radiation-based sintering
                      processes for sintering garnet-based battery components.
                      Radiation-based sintering (photonic sintering) such as rapid
                      thermal processing (RTP) and laser sintering are non-contact
                      processes that combine extremely high heating rates with
                      short exposure times to selectively sinter the surface of a
                      sample. The light sources can range from high-power lamps
                      and flash lamps to lasers. Radiation-based sintering and
                      annealing processes are commercialized and well-established
                      for inorganic thin films, but have not been investigated for
                      ceramic garnetbased battery components, yet.},
      cin          = {IEK-1},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {899 - ohne Topic (POF4-899)},
      pid          = {G:(DE-HGF)POF4-899},
      typ          = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
      doi          = {10.34734/FZJ-2024-01469},
      url          = {https://juser.fz-juelich.de/record/1022475},
}