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@INPROCEEDINGS{Ahrens:1021018,
      author       = {Ahrens, Lara and Meledina, Maria and Basak, Shibabrata and
                      Eichel, Rüdiger-A. and Mayer, Joachim},
      title        = {{U}nderstanding of the {D}egradation and {A}ging
                      {M}echanisms in {N}i-rich {NMC} at {N}anoscale},
      reportid     = {FZJ-2024-00478},
      year         = {2023},
      abstract     = {Ni-rich NMC (NixMnyCo1-x-yO2 with x > 0.8) has been a
                      promising candidate for cathode active materials (CAMs) in
                      Li-ion batteries (LIBs) [1,2]. Reducing the Cobalt content
                      in NMC cathodes leads to a more environment-friendly and
                      affordable material. Also, the specific capacity of Ni-rich
                      NMC is significantly increased compared to conventional NMC
                      material. However, the cycle stability is reduced. To
                      improve the lifetime of Ni-rich NMCs, it is important to
                      gain a deeper understanding of the degradation- and aging
                      mechanisms appearing during material synthesis and cycling.
                      Therefore, studies of the micro- and nanostructure are key
                      for tailoring material properties specifically, for instance
                      through doping or coating.Modern focused-ion-beam (FIB)
                      preparation allows cutting of extremely thin samples,
                      enabling high-resolution imaging. Figure 1 shows a lamella
                      of a polycrystalline Ni-rich NMC particle, which was
                      prepared by FIB and a corresponding HRSTEM image of a
                      layered structure. In addition to ex-situ experiments on the
                      atomic scale, in-situ experiments play a key role in
                      understanding degradation and aging mechanisms in LIBs
                      [3,4]. By applying voltage or temperature more realistic
                      scenarios can be represented. Therefore, we focus both on
                      ex-situ and on in-situ setups (Figure 2).},
      month         = {Feb},
      date          = {2023-02-26},
      organization  = {Microscopy Conference 2023, Dramstadt
                       (Fed Rep Germany), 26 Feb 2023 - 2 Mar
                       2023},
      subtyp        = {After Call},
      cin          = {IEK-9 / ER-C-2},
      cid          = {I:(DE-Juel1)IEK-9-20110218 / I:(DE-Juel1)ER-C-2-20170209},
      pnm          = {1223 - Batteries in Application (POF4-122)},
      pid          = {G:(DE-HGF)POF4-1223},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/1021018},
}