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@ARTICLE{Cloos:1024723,
      author       = {Cloos, Lisa and Queisser, Oliver and Chahbaz, Ahmed and
                      Paarmann, Sabine and Sauer, Dirk Uwe and Wetzel, Thomas},
      title        = {{T}hermal {T}ransients to {A}ccelerate {C}yclic {A}ging of
                      {L}ithium‐{I}on {B}atteries},
      journal      = {Batteries $\&$ supercaps},
      volume       = {7},
      number       = {3},
      issn         = {2566-6223},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2024-02389},
      pages        = {e202300445},
      year         = {2024},
      note         = {Das Projekt wurde zudem gefördert durch: BMBF03XP0320D
                      $\&$ BMBF03XP0320A},
      abstract     = {Cyclic aging tests of lithium-ion batteries are very
                      time-consuming. Therefore, it is necessary to reduce the
                      testing time by tightening the testing conditions. However,
                      the acceleration with this approach is limited without
                      altering the aging mechanisms. In this paper, we investigate
                      whether and how thermal transients accelerate the aging. The
                      tests are performed on NMC/graphite pouch cells by applying
                      temperatures in a range of 5 °C to 45 °C to the cell
                      surface. The results show, that an accelerated capacity loss
                      can be achieved in comparison to the reference cell at a
                      steady-state temperature of 25 °C. However, capacity
                      difference analysis (CDA) prognoses a covering layer for the
                      transient cells, which is confirmed upon post-mortem
                      analysis. We suspect the origin to lie in the dynamics of
                      temperature fields and current distribution during
                      temperature changes when charging. More specifically, areas
                      of higher temperature in the cell lead to high local current
                      densities and plating. Subsequently, high temperatures
                      promote the reaction of the plated lithium with electrolyte.
                      The results show that thermal transients are a critical
                      condition for lifetime and safety and should be treated with
                      caution as they can occur during real life operation.},
      cin          = {IEK-12},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-12-20141217},
      pnm          = {1223 - Batteries in Application (POF4-122)},
      pid          = {G:(DE-HGF)POF4-1223},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001138288400001},
      doi          = {10.1002/batt.202300445},
      url          = {https://juser.fz-juelich.de/record/1024723},
}