% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Wang:481952,
      author       = {Wang, Junbo and Dreyer, Sören Lukas and Wang, Kai and
                      Ding, Ziming and Diemant, Thomas and Ma, Yanjiao and
                      Guruprakash, Karkera and Sarkar, Abhishek and Zhou, Bei and
                      Gorbunov, Mikhail and Omar, Ahmad and Mikhailova, Daria and
                      Presser, Volker and Fichtner, Maximilian and Hahn, Horst and
                      Brezesinski, Torsten and Breitung, Ben and Wang, Qingsong},
      title        = {{P}2-{T}ype {L}ayered {H}igh-{E}ntropy {O}xides as
                      {S}odium-{I}on {C}athode {M}aterials},
      journal      = {Materials futures},
      volume       = {1},
      number       = {3},
      issn         = {2752-5724},
      address      = {Bristol},
      publisher    = {IOP Science},
      reportid     = {PUBDB-2022-04645},
      pages        = {035104},
      year         = {2022},
      abstract     = {P2-type layered oxides with the general Na-deficient
                      composition NaxTMO2 (x < 1, TM: transition metal) are a
                      promising class of cathode materials for sodium-ion
                      batteries. The open Na+ transport pathways present in the
                      structure lead to low diffusion barriers and enable high
                      charge/discharge rates. However, a phase transition from P2
                      to O2 structure occurring above 4.2 V, combined with metal
                      dissolution at low potentials upon discharge, results in
                      rapid capacity degradation. In this work, we demonstrate the
                      positive effect of configurational entropy on the stability
                      of the crystal structure during battery operation. Three
                      different compositions of layered P2-type oxides were
                      synthesized by solid-state chemistry,
                      Na0.67(Mn0.55Ni0.21Co0.24)O2,
                      Na0.67(Mn0.45Ni0.18Co0.24Ti0.1Mg0.03)O2, and
                      Na0.67(Mn0.45Ni0.18Co0.18Ti0.1Mg0.03Al0.04Fe0.02)O2 with
                      low, medium and high configurational entropy, respectively.
                      The high-entropy cathode material shows lower structural
                      transformation and Mn dissolution upon cycling in a wide
                      voltage range from 1.5 to 4.6 V. Advanced operando
                      techniques and post-mortem analysis were used to probe the
                      underlying reaction mechanism thoroughly. Overall, the
                      high-entropy strategy is a promising route for improving the
                      electrochemical performance of P2 layered oxide cathodes for
                      advanced sodium-ion battery applications.},
      cin          = {DOOR ; HAS-User},
      ddc          = {600},
      cid          = {I:(DE-H253)HAS-User-20120731},
      pnm          = {6G3 - PETRA III (DESY) (POF4-6G3) / FS-Proposal: I-20200905
                      (I-20200905)},
      pid          = {G:(DE-HGF)POF4-6G3 / G:(DE-H253)I-20200905},
      experiment   = {EXP:(DE-H253)P-P65-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001089363500001},
      doi          = {10.1088/2752-5724/ac8ab9},
      url          = {https://bib-pubdb1.desy.de/record/481952},
}