Nature Communications (Feb 2020)

Reversible structural evolution of sodium-rich rhombohedral Prussian blue for sodium-ion batteries

  • Wanlin Wang,
  • Yong Gang,
  • Zhe Hu,
  • Zichao Yan,
  • Weijie Li,
  • Yongcheng Li,
  • Qin-Fen Gu,
  • Zhixing Wang,
  • Shu-Lei Chou,
  • Hua-Kun Liu,
  • Shi-Xue Dou

DOI
https://doi.org/10.1038/s41467-020-14444-4
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 9

Abstract

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Here the authors deploy a scalable synthesis route to prepare sodium-rich Na2−x FeFe(CN)6 cathode materials for sodium-ion battery. The highly reversible structural evolution during cycling between rhombohedral, cubic and tetragonal phases is the key to enable the good performance.