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@ARTICLE{GomezMartin:905130,
      author       = {Gomez-Martin, Aurora and Reissig, Friederike and
                      Frankenstein, Lars and Heidbüchel, Marcel and Winter,
                      Martin and Placke, Tobias and Schmuch, Richard},
      title        = {{M}agnesium {S}ubstitution in {N}i‐{R}ich {NMC} {L}ayered
                      {C}athodes for {H}igh‐{E}nergy {L}ithium {I}on
                      {B}atteries},
      journal      = {Advanced energy materials},
      volume       = {12},
      number       = {8},
      issn         = {1614-6832},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2022-00422},
      pages        = {2103045},
      year         = {2022},
      abstract     = {Ni-rich LiNi1−x−yMnxCoyO2 (NMC) layered oxides are
                      promising cathode materials for high-energy density lithium
                      ion batteries but suffer from severe capacity fading upon
                      cycling. Elemental substitution (= doping) with Mg has
                      repeatedly attracted attention in NMC materials to overcome
                      instability problems at reasonable cost, yet rational
                      compositional tuning is needed to guarantee sufficient cycle
                      life without compromising energy density on the material
                      level. Herein, a series of Mg-substituted NMC materials with
                      90 $mol\%$ Ni are investigated regarding key performance
                      metrics in NMC || graphite full-cells benchmarked against
                      LiNi0.80Mn0.10Co0.10O2 and LiNi0.90Mn0.05Co0.05O2
                      synthetized using the same co-precipitation route. A linear
                      correlation between cycle life and attainable gravimetric
                      capacities is demonstrated, which are directly influenced by
                      the degree of Mg substitution and the amount of Li+ cycled
                      upon (de-)lithiation processes. A Mg content <2 $mol\%$
                      should be considered to take notable benefit from the
                      increase in Ni content from 80 to 90 $mol\%$ to achieve a
                      higher energy density. The present study highlights the
                      importance of evaluating the true implications of elemental
                      substitution on cell performance and is expected to be an
                      insightful guideline for the future development of NMC-type
                      cathode materials in particular with high Ni and low Co
                      content.},
      cin          = {IEK-12},
      ddc          = {050},
      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:000738814800001},
      doi          = {10.1002/aenm.202103045},
      url          = {https://juser.fz-juelich.de/record/905130},
}