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@PHDTHESIS{Lan:897113,
      author       = {Lan, Tu},
      title        = {{I}nfiltrated {P}ositive {E}lectrodes for
                      {A}ll-{S}olid-{S}tate {S}odium {B}atteries},
      volume       = {551},
      school       = {RWTH Aachen},
      type         = {Dissertation},
      address      = {Jülich},
      publisher    = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
      reportid     = {FZJ-2021-03611},
      isbn         = {978-3-95806-576-5},
      series       = {Schriften des Forschungszentrums Jülich. Reihe Energie
                      $\&$ Umwelt / Energy $\&$ Environment},
      pages        = {vi, 104 S.},
      year         = {2021},
      note         = {Dissertation, RWTH Aachen, 2020},
      abstract     = {All-solid-state batteries (ASSBs) are regarded as promising
                      candidates for nextgeneration energy storage systems due to
                      several superior properties in comparison to
                      state-of-the-art batteries using liquid electrolytes. ASSBs
                      have advantages with respect to no-leaking electrolytes,
                      wider temperature window, and potentially higher volumetric
                      energy density than those batteries using liquid
                      electrolyte. In addition, ceramic ion-conducting oxides, as
                      electrolyte materials, offer further benefit from their high
                      conductivity, as well as good mechanical, chemical, and
                      thermodynamic stability. Though great achievements have been
                      made in the development of all-solid-state batteries, there
                      are still a number of problems to be solved, especially with
                      respect to the positive electrodes. The rigid nature of
                      solid-state electrolyte materials restricts the
                      electrolyte-electrode contact and causes problems during the
                      fabrication of components. In the positive electrodes,
                      contacts between randomly-arranged grains of Na-ion
                      conductors and electrode active materials are not efficient
                      for both ion conduction and electrochemical reaction. These
                      rigid contacts are further damaged by volume changes of
                      electrode active materials during electrochemical cycling.
                      These electrode problems above are reported to be more
                      severe in Na-based ASSBs (Na-ASSBs) due to the larger ionic
                      radius of Na$^{+}$ and thus larger volume changes of the
                      electrode materials. In order to solve the problems
                      associated with the positive electrodes of Na-ASSBs, a new
                      electrode design is needed together with a practical
                      preparation method. In this thesis, Na-ASSBs have been built
                      using NaSICON-type
                      Na$_{3.4}$Zr$_{2}$Si$_{2.4}$P$_{0.6}$O$_{12}$ as the
                      electrolyte material. A material with similar structure as
                      the electrolyte, Na$_{3}$V$_{2}$P$_{3}$O$_{12}$, was chosen
                      as the positive electrode material.
                      Na$_{3}$V$_{2}$P$_{3}$O$_{12}$ has been widely studied as
                      the electrode material for batteries with liquid
                      electrolyte, but only a few unsuccessful attempts have been
                      made to apply the material in ASSBs.},
      cin          = {IEK-1},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {1221 - Fundamentals and Materials (POF4-122)},
      pid          = {G:(DE-HGF)POF4-1221},
      typ          = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
      url          = {https://juser.fz-juelich.de/record/897113},
}