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@PHDTHESIS{SchnBlume:840105,
      author       = {Schön-Blume, Nino},
      othercontributors = {Hausen, Florian and Mayer, Joachim},
      title        = {{E}xploring solid-state batteries on the nanoscale by
                      utilizing electrochemical strain microscopy},
      school       = {RWTH Aachen University},
      type         = {Dissertation},
      address      = {Aachen},
      publisher    = {RWTH Aachen University},
      reportid     = {RWTH-2022-01036},
      pages        = {1 Online-Ressource : Illustrationen},
      year         = {2021},
      note         = {Veröffentlicht auf dem Publikationsserver der RWTH Aachen
                      University 2022; Dissertation, RWTH Aachen University, 2021},
      abstract     = {Energy storage devices act as a catalyst for technological
                      advancement and are poised to solve critical questions with
                      regards to the energy supply and storage of the future. For
                      target-oriented research, it is fundamental to understand
                      the processes and mechanisms that determine the performance
                      of electrochemical materials on a sufficiently small scale.
                      This is especially critical, when developing advanced
                      materials for novel technologies like solid state batteries.
                      In solid state batteries the aim is to substitute
                      conventional liquid electrolytes with solid state
                      electrolytes for improved safety and electrochemical
                      properties. In this work, electrochemical strain microscopy
                      was used to probe solid-state battery materials and gain
                      insights into the local properties on an unprecedented
                      scale. Electrochemical strain microscopy (ESM) is a novel
                      technique based on atomic force microscopy (AFM), that so
                      far has not been extensively used on solid state batteries.
                      Subsequently, the underlying signal formation mechanisms
                      were extensively probed and determined to be based on
                      electrostatic interaction between AFM-tip and sample rather
                      than deformation based on Vegard’s Law. It is found that
                      the AC bias induced cantilever reflection also called ESM
                      amplitude, shows distinctive local variations that are
                      linked to the lithium-ion concentration and phase
                      composition. Additionally, it is demonstrated on the
                      solidstate electrolyte Li1.3Al0.3Ti1.7(PO4)3 (LATP), that
                      the grain boundary composition is not homogeneous, is
                      influenced by the sintering temperature and strongly impacts
                      global ion conductivity. Furthermore, it is found that
                      additional interfaces are formed by twinning occurring
                      inside the LATP grains influencing ion migration through the
                      material. This work shows that electrochemical strain
                      microscopy allows enhanced characterization of the origins
                      of electrochemical performance on a relevant scale and is a
                      suitable tool for advanced research of solid-state battery
                      materials.},
      cin          = {155630 / 150000},
      ddc          = {540},
      cid          = {$I:(DE-82)155630_20160407$ / $I:(DE-82)150000_20140620$},
      typ          = {PUB:(DE-HGF)11},
      doi          = {10.18154/RWTH-2022-01036},
      url          = {https://publications.rwth-aachen.de/record/840105},
}