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@ARTICLE{Ju:1024913,
      author       = {Ju, Xiaokang and Hou, Xu and Liu, Zhongqing and Du, Leilei
                      and Zhang, Li and Xie, Tangtang and Paillard, Elie and Wang,
                      Taihong and Winter, Martin and Li, Jie},
      title        = {{R}evealing the {E}ffect of {H}igh {N}i {C}ontent in
                      {L}i‐{R}ich {C}athode {M}aterials: {M}itigating {V}oltage
                      {D}ecay or {I}ncreasing {I}ntrinsic {R}eactivity},
      journal      = {Small},
      volume       = {19},
      number       = {20},
      issn         = {1613-6810},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2024-02563},
      pages        = {2207328},
      year         = {2023},
      note         = {Unterstützt durch DFG, Projekt Li 2916/2-1},
      abstract     = {Li-rich layered oxides are considered as one of the most
                      promising cathode materials for secondary lithium batteries
                      due to their high specific capacities, but the issue of
                      continuous voltage decay during cycling hinders their market
                      entry. Increasing the Ni content in Li-rich materials is
                      assumed to be an effective way to address this issue and
                      attracts recent research interests. However, a high Ni
                      content may induce increased intrinsic reactivity of
                      materials, resulting in severe side reactions with the
                      electrolyte. Thus, a comprehensive study to differentiate
                      the two effects of the Ni content on the cell performance
                      with Li-rich cathode is carried out in this work. Herein, it
                      is demonstrated that a properly dosed amount of Ni can
                      effectively suppress the voltage decay in Li-rich cathodes,
                      while over-loading of Ni, on the contrary, can cause
                      structural instability, Ni dissolution, and nonuniform Li
                      deposition during cycling as well as severe oxygen loss.
                      This work offers a deep understanding on the impacts of Ni
                      content in Li-rich materials, which can be a good guidance
                      for the future design of such cathodes for high energy
                      density lithium batteries.},
      cin          = {IEK-12},
      ddc          = {620},
      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},
      pubmed       = {36799132},
      UT           = {WOS:000939488800001},
      doi          = {10.1002/smll.202207328},
      url          = {https://juser.fz-juelich.de/record/1024913},
}