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@ARTICLE{EilersRethwisch:865963,
      author       = {Eilers-Rethwisch, Matthias and Winter, Martin and
                      Schappacher, Falko Mark},
      title        = {{S}ynthesis, electrochemical investigation and structural
                      analysis of doped {L}i[{N}i0.6{M}n0.2{C}o0.2-{M}]{O}2 (x =
                      0, 0.05; {M} = {A}l, {F}e, {S}n) cathode materials},
      journal      = {Journal of power sources},
      volume       = {387},
      issn         = {0378-7753},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2019-05229},
      pages        = {101 - 107},
      year         = {2018},
      abstract     = {Layered Ni-rich Li[Ni0.6Mn0.2Co0.2-xMx]O2 cathode materials
                      (x = 0, 0.05; M = Al, Fe, Sn) are synthesized via a
                      co-precipitation synthesis route and the effect of dopants
                      on the structure and electrochemical performance is
                      investigated. All synthesized materials show a well-defined
                      layered structure of the hexagonal α-NaFeO2 phase
                      investigated by X-ray diffraction (XRD). Undoped
                      LiNi0.6Mn0.2Co0.2O2 exhibits a discharge capacity of 170 mAh
                      g−1 in Li-metal 2032 coin-type cells. Doped materials
                      reach lower capacities between 145 mAh g−1 for Al and 160
                      mAh g−1 for Sn. However, all doped materials prolong the
                      cycle life by up to $20\%.$ Changes of the lattice parameter
                      before and after delithiation yield information about
                      structural stability. A smaller repulsion of the transition
                      metal layer during delithiation in the Sn-doped material
                      leads to a smaller expansion of the unit cell, which results
                      in enhanced structural stability of the material. The
                      improved structural stability of Sn-doped NMC cathode active
                      material is proven by thermal investigations with the help
                      of Differential Scanning Calorimetry (DSC) and
                      Thermogravimetric Analysis (TGA).},
      cin          = {IEK-12},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-12-20141217},
      pnm          = {131 - Electrochemical Storage (POF3-131)},
      pid          = {G:(DE-HGF)POF3-131},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000430899800013},
      doi          = {10.1016/j.jpowsour.2018.02.080},
      url          = {https://juser.fz-juelich.de/record/865963},
}