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@ARTICLE{Zehetmaier:865566,
      author       = {Zehetmaier, Peter M. and Cornélis, Arnaud and Zoller,
                      Florian and Boeller, Bernhard and Wisnet, Andreas and
                      Döblinger, Markus and Boehm, Daniel and Bein, Thomas and
                      Fattakhova-Rohlfing, Dina},
      title        = {{N}anosized {L}ithium-rich {C}obalt {O}xide {P}articles and
                      their {T}ransformation to {L}ithium {C}obalt {O}xide
                      {C}athodes with {O}ptimized {H}igh-rate {M}orphology},
      journal      = {Chemistry of materials},
      volume       = {31},
      number       = {21},
      issn         = {1520-5002},
      address      = {Washington, DC},
      publisher    = {American Chemical Society},
      reportid     = {FZJ-2019-04931},
      pages        = {8685-8694},
      year         = {2019},
      abstract     = {We report the formation of crystalline dispersible
                      LixCo1-xO nanoparticles with an unusual rock-salt phase
                      containing ~15 $at\%$ Li in the crystalline structure. This
                      is the first time that this composition was formed at
                      temperatures as low as 150 °C under conditions of a
                      solvothermal process, although it is referred to as a high
                      temperature metastable phase in a very limited number of
                      known publications. The Li0.15Co0.85O nanoparticles of 2-3
                      nm in size completely transform to high-temperature
                      LiCoO2(HT-LCO) nanoparticles at 560 °C in the presence of
                      slightly overstoichiometric amounts of Li source. The
                      presence of lithium in the CoO lattice slows down the
                      kinetics of its phase transformation, enabling to obtain
                      very small HT-LCO nanocrystals during the subsequent
                      calcination. The HT-LCO particles formed after this
                      transformation have an elongated shape with a mean size of
                      about 17 x 60 nm, which is targeted as an optimum size for
                      battery applications. An attractive feature of the
                      Li0.15Co0.85O nanoparticles is their high dispersibility
                      enabling their assembly into different nanostructures with
                      optimized morphology. Open porous HT-LCO electrodes prepared
                      via self-assembly of Li0.15Co0.85O nanoparticles and
                      Pluronic F127 as a structure-directing agent demonstrate
                      very good performance at high current densities representing
                      short charge/discharge times below 10 minutes. Even at
                      charge/discharge times of 72 seconds (50C), $50\%$ of the
                      theoretical capacity has been preserved. After 250 cycles at
                      charge/discharge times of 6 minutes (10C), over $60\%$ of
                      the initial discharge capacity was retained},
      cin          = {IEK-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {899 - ohne Topic (POF3-899)},
      pid          = {G:(DE-HGF)POF3-899},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000497262500010},
      doi          = {10.1021/acs.chemmater.9b02231},
      url          = {https://juser.fz-juelich.de/record/865566},
}