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@ARTICLE{VargasBarbosa:1025083,
      author       = {Vargas-Barbosa, Nella Marie and Puls, Sebastian and
                      Woolley, Henry Michael},
      title        = {{H}ybrid {M}aterial {C}oncepts for {T}hiophosphate-{B}ased
                      {S}olid-{S}tate {B}atteries},
      journal      = {Meeting abstracts},
      volume       = {MA2023-01},
      number       = {6},
      issn         = {1091-8213},
      address      = {Pennington, NJ},
      publisher    = {Soc.},
      reportid     = {FZJ-2024-02671},
      pages        = {984 - 984},
      year         = {2023},
      note         = {Hierbei handelt es sich lediglich um einen Abstract.},
      abstract     = {Solid-state batteries (SSBs) could replace conventional
                      lithium-ion batteries due to the possibility of increasing
                      the energy density of the cells by using lithium metal as
                      the anode material.[1] Among the many electrolyte candidates
                      for lithium SSBs, the lithium thiophosphates are
                      particularly interesting due to their high ionic
                      conductivities at room temperature (>1 mS/cm). However, the
                      (electro)chemical stability of these solid electrolytes is
                      limited and not fully compatible with state-of-the-art
                      high-potential cathode active materials[2] or the lithium
                      metal anode.[3] At the cell level, the formation of
                      interparticle voids between the various battery components
                      (solid electrolyte, cathode active material, anode material,
                      additives, decomposition interphases) hinder the net
                      transport during cycling. To address the latter
                      electro-chemo-mechanical challenges, we are exploring hybrid
                      material approaches, in which we combine established
                      materials (solid electrolytes, liquid electrolytes and/or
                      polymer additives) with state-of-the-art cathode active
                      materials and test their electrochemical performance in
                      solid-state battery (half-)cells. Such cycling results are
                      complimented by detailed electrochemical transport studies
                      in symmetrical cells using DC polarization and
                      electrochemical impedance spectroscopy, including
                      transmission-line modeling. ex.situ chemically-specific
                      spectroscopic methods are used to support our hypotheses and
                      interpretation of the electrochemical results. Taken
                      together, we attain a better picture on the positive (or
                      negative) role hybrid materials play in SSBs. In this talk,
                      we will showcase two hybrid systems, namely ionic
                      liquid/thiophosphate lithium hybrid electrolytes and
                      conductive polymers additives in NMC-based catholyte
                      composites for Li6PS5Cl cells. The first part of the talk we
                      will discuss the results in which we evaluate the
                      performance of liquid electrolyte-solid electrolyte
                      materials against lithium metal using galvanostatic
                      electrochemical impedance spectroscopy. In the second part,
                      we elucidate the partial ionic and electronic transport in
                      polymer electrolyte-Li6PS5Cl-NMC catholytes as a function of
                      polymer content using impedance spectroscopy and its effect
                      in the cycling performance, both the stability as well as
                      the magnitude of the discharge capacities. These systems
                      serve as a good starting point for the further development
                      and incorporation of hybrid materials in SSBs.Literature:
                      [1] W. G. Zeier and J. Janek Nature Energy, 2016, 1, 16141.
                      [2] G.F. Dewald, S. Ohno, M.A. Kraft, R. Kroever, P. Till,
                      N.M. Vargas-Barbosa, J. Janek, W.G. Zeier Chem. Mater. 2019,
                      31, 8328. [3] L. M. Riegger, R. Schlem, J. Sann, W. G.
                      Zeier, J. Janek, Angew. Chem. Int Ed 2021, 60, 6718.},
      cin          = {IEK-12},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-12-20141217},
      pnm          = {1221 - Fundamentals and Materials (POF4-122)},
      pid          = {G:(DE-HGF)POF4-1221},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1149/MA2023-016984mtgabs},
      url          = {https://juser.fz-juelich.de/record/1025083},
}