Electrochemistry Communications (Jan 2019)

Well-defined Na2Zn3[Fe(CN)6]2 nanocrystals as a low-cost and cycle-stable cathode material for Na-ion batteries

  • Li Xu,
  • Hui Li,
  • Xianyong Wu,
  • Miaomiao Shao,
  • Shuangyu Liu,
  • Bo Wang,
  • Guangyao Zhao,
  • Peng Sheng,
  • Xin Chen,
  • Yu Han,
  • Yuliang Cao,
  • Xinping Ai,
  • Jiangfeng Qian,
  • Hanxi Yang

Journal volume & issue
Vol. 98
pp. 78 – 81

Abstract

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Well-defined Na2Zn3[Fe(CN)6]2 nanocrystals (~300 nm) have been fabricated by a facile controlled crystallization method from low-cost precursors at room temperature. By employing [Fe(CN)6]3−/[Fe(CN)6]4− couples as redox centres, this material can realize a theoretical 1Na-storage capacity of 70 mAh g−1, a superior high-rate capability of 20 C and an impressive cycle life of 1000 cycles, offering a low-cost and high-performance alternative cathode for large-scale Na-ion applications. Keywords: Na-ion batteries, Prussian blue analogues, Intercalation cathode, Energy storage