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@ARTICLE{Stolz:891788,
      author       = {Stolz, Lukas and Homann, Gerrit and Winter, Martin and
                      Kasnatscheew, Johannes},
      title        = {{A}rea {O}versizing of {L}ithium {M}etal {E}lectrodes in
                      {S}olid‐{S}tate {B}atteries: {R}elevance for {O}vervoltage
                      and thus {P}erformance?},
      journal      = {ChemSusChem},
      volume       = {14},
      number       = {10},
      issn         = {1864-564X},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2021-01735},
      pages        = {2163-2169},
      year         = {2021},
      abstract     = {Systematic and systemic research and development of solid
                      electrolytes for lithium batteries requires a reliable and
                      reproducible benchmark cell system. Therefore, factors
                      relevant for performance, such as temperature, voltage
                      operation range, or specific current, should be defined and
                      reported. However, performance can also be sensitive to
                      apparently inconspicuous and overlooked factors, such as
                      area oversizing of the lithium electrode and the solid
                      electrolyte membrane (relative to the cathode area). In this
                      study, area oversizing is found to diminish polarization and
                      improves the performance in LiNi0.6Mn0.2Co0.2O2 (NMC622)||Li
                      cells, with a more pronounced effect under kinetically harsh
                      conditions (e. g., low temperature and/or high current
                      density). For validity reasons, the polarization behavior is
                      also investigated in Li||Li symmetric cells. Given the
                      mathematical conformity of the characteristic overvoltage
                      behavior with the Sand's equation, the beneficial effect is
                      attributed to lower depletion of Li ions at the
                      electrode/electrolyte interface. In this regard, the highest
                      possible effect of area oversizing on the performance is
                      discussed, that is when the accompanied decrease in current
                      density and overvoltage overcomes the Sand's threshold
                      limit. This scenario entirely prevents the capacity decay
                      attributable to Li+ depletion and is in line with the
                      mathematically predicted values.},
      cin          = {IEK-12},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-12-20141217},
      pnm          = {122 - Elektrochemische Energiespeicherung (POF4-122)},
      pid          = {G:(DE-HGF)POF4-122},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {33756054},
      UT           = {WOS:000638069600001},
      doi          = {10.1002/cssc.202100213},
      url          = {https://juser.fz-juelich.de/record/891788},
}