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@ARTICLE{Lewerenz:866894,
      author       = {Lewerenz, Meinert and Fuchs, Georg and Becker, Lisa and
                      Sauer, Dirk Uwe},
      title        = {{I}rreversible calendar aging and quantification of the
                      reversible capacity loss caused by anode overhang},
      journal      = {Journal of energy storage},
      volume       = {18},
      issn         = {2352-152X},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2019-05954},
      pages        = {149 - 159},
      year         = {2018},
      abstract     = {Calendar aging tests are presented quantifying the
                      reversible capacity loss caused by lithium migration from
                      the active part to the overhang of the anode. Based on these
                      tests, capacity loss at five different SOCs with respect to
                      the anode is evaluated. The remaining capacity shows a
                      non-linear part in the beginning representing the reversible
                      capacity loss caused by the overhang. The subsequent linear
                      part ending after 100–200 days corresponds to the
                      irreversible capacity loss. By extrapolating the linear part
                      to t = 0, the lithium lost to the overhang is
                      measureable for each storage condition. This approach
                      matches well to theoretical values calculated using a simple
                      equation. In later stages of the capacity loss curve,
                      another superposed effect can be observed that decreases
                      capacity fade. The reason is found in an increasing
                      homogeneity of lithium distribution that correlates to the
                      peak height of differential voltage characteristics. In this
                      publication an increasing homogeneity is associated with a
                      higher extractable capacity and vice versa. An especially
                      high increase of homogeneity is observable when a high
                      voltage difference coincides with pressure change due to
                      lithium insertion. Finally, the temperature dependency of
                      the lateral lithium flow is shown for three temperatures at
                      a fixed storage position.},
      cin          = {IEK-12 / JARA-ENERGY},
      ddc          = {333.7},
      cid          = {I:(DE-Juel1)IEK-12-20141217 / $I:(DE-82)080011_20140620$},
      pnm          = {131 - Electrochemical Storage (POF3-131)},
      pid          = {G:(DE-HGF)POF3-131},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000439496500014},
      doi          = {10.1016/j.est.2018.04.029},
      url          = {https://juser.fz-juelich.de/record/866894},
}