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@ARTICLE{Roth:1024777,
      author       = {Roth, Thomas and Streck, Luiza and Mujanovic, Nedim and
                      Winter, Martin and Niehoff, Philip and Jossen, Andreas},
      title        = {{T}ransient {S}elf-{D}ischarge after {F}ormation in
                      {L}ithium-{I}on {C}ells: {I}mpact of {S}tate-of-{C}harge and
                      {A}node {O}verhang},
      journal      = {Journal of the Electrochemical Society},
      volume       = {170},
      number       = {8},
      issn         = {0013-4651},
      address      = {Bristol},
      publisher    = {IOP Publishing},
      reportid     = {FZJ-2024-02443},
      pages        = {080524 -},
      year         = {2023},
      note         = {Unterstützt durch BMBF Grant: 03XP0296D und die TUM},
      abstract     = {A fast determination of cell quality after formation is
                      challenging due to transient effects in the self-discharge
                      measurement. This work investigated the self-discharge of
                      NMC622/graphite single-layer pouch cells with varying anode
                      dimensions to differentiate between SEI growth and anode
                      overhang equalization processes. The transient
                      self-discharge was measured directly after formation via
                      voltage decay and for 20 weeks of calendar storage at three
                      states-of-charge (SOC), $10\%,$ $30\%,$ and $50\%.$ The
                      transient behavior persisted for the entire measurement
                      duration, even at a low SOC. Still, the low SOC minimized
                      the impact of SEI growth and anode overhang equalization
                      compared to moderate SOCs. Evaluating the coulombic
                      efficiency from cycle aging showed a distinct capacity loss
                      for the first cycle after storage, indicating further SEI
                      growth, which stabilized in subsequent cycles. The aged
                      capacity after cycling showed no significant dependence on
                      the calendar storage, which further promotes fast
                      self-discharge characterization at low SOC.},
      cin          = {IEK-12},
      ddc          = {660},
      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:001057230800001},
      doi          = {10.1149/1945-7111/acf164},
      url          = {https://juser.fz-juelich.de/record/1024777},
}