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@ARTICLE{Niemller:848384,
      author       = {Niemöller, Arvid and Jakes, Peter and Eichel, Rüdiger-A.
                      and Granwehr, Josef},
      title        = {{EPR} {I}maging of {M}etallic {L}ithium and ist
                      {A}pplication to {D}endrite {L}ocalisation in {B}attery
                      {S}eparators},
      journal      = {Scientific reports},
      volume       = {8},
      number       = {1},
      issn         = {2045-2322},
      address      = {London},
      publisher    = {Nature Publishing Group},
      reportid     = {FZJ-2018-03625},
      pages        = {14331},
      year         = {2018},
      abstract     = {Conduction Electron Paramagnetic Resonance Imaging (CEPRI)
                      is presented as a sensitive technique for mapping metallic
                      lithium species. The method is demonstrated using different
                      samples that are either thick or thin compared to the
                      microwave skin depth. As a thin sample, microstructured
                      metallic lithium deposits in a lithium-ion battery (LIB)
                      separator were analysed, illustrating the capabilities of
                      CEPRI by obtaining a high-resolution image with an image
                      resolution in the micrometre range. Limitations and
                      intricacies of the method due to non-linear effects caused
                      by the skin effect are discussed based on images of surface
                      patterns on thick metallic lithium samples. The lineshape of
                      the EPR spectrum is introduced as a proxy to determine the
                      suitability of CEPRI for the quantitative visualisation of
                      metallic lithium deposits. The results suggest that CEPRI is
                      particularly suited to analyse the spatial distribution of
                      microstructured Li that forms during charging and
                      discharging of LIB cells, including the localization of the
                      point of failure in the case of an internal cell short
                      circuit caused by dendrites.},
      cin          = {IEK-9},
      ddc          = {000},
      cid          = {I:(DE-Juel1)IEK-9-20110218},
      pnm          = {131 - Electrochemical Storage (POF3-131) / HITEC -
                      Helmholtz Interdisciplinary Doctoral Training in Energy and
                      Climate Research (HITEC) (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF3-131 / G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:30254250},
      UT           = {WOS:000445570700024},
      doi          = {10.1038/s41598-018-32112-y},
      url          = {https://juser.fz-juelich.de/record/848384},
}