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@ARTICLE{Beuse:902722,
      author       = {Beuse, Thomas and Fingerle, Mathias and Wagner, Christian
                      and Winter, Martin and Börner, Markus},
      title        = {{C}omprehensive {I}nsights into the {P}orosity of
                      {L}ithium-{I}on {B}attery {E}lectrodes: {A} {C}omparative
                      {S}tudy on {P}ositive {E}lectrodes {B}ased on
                      {L}i{N}i0.6{M}n0.2{C}o0.2{O}2 ({NMC}622)},
      journal      = {Batteries},
      volume       = {7},
      number       = {4},
      issn         = {2313-0105},
      address      = {Basel},
      publisher    = {MDPI},
      reportid     = {FZJ-2021-04504},
      pages        = {70 -},
      year         = {2021},
      abstract     = {Porosity is frequently specified as only a value to
                      describe the microstructure of a battery electrode. However,
                      porosity is a key parameter for the battery electrode
                      performance and mechanical properties such as adhesion and
                      structural electrode integrity during charge/discharge
                      cycling. This study illustrates the importance of using more
                      than one method to describe the electrode microstructure of
                      LiNi0.6Mn0.2Co0.2O2 (NMC622)-based positive electrodes. A
                      correlative approach, from simple thickness measurements to
                      tomography and segmentation, allowed deciphering the true
                      porous electrode structure and to comprehend the advantages
                      and inaccuracies of each of the analytical techniques.
                      Herein, positive electrodes were calendered from a porosity
                      of $44–18\%$ to cover a wide range of electrode
                      microstructures in state-of-the-art lithium-ion batteries.
                      Especially highly densified electrodes cannot simply be
                      described by a close packing of active and inactive material
                      components, since a considerable amount of active material
                      particles crack due to the intense calendering process.
                      Therefore, a digital 3D model was created based on
                      tomography data and simulation of the inactive material,
                      which allowed the investigation of the complete pore
                      network. For lithium-ion batteries, the results of the
                      mercury intrusion experiments in combination with gas
                      physisorption/pycnometry experiments provide comprehensive
                      insight into the microstructure of positive electrodes.},
      cin          = {IEK-12},
      ddc          = {530},
      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},
      UT           = {WOS:000736303500001},
      doi          = {10.3390/batteries7040070},
      url          = {https://juser.fz-juelich.de/record/902722},
}