Bio-inspired synthesis of xLi2MnO3-(1 − x)LiNi0.33Co0.33Mn0.33O2 lithium-rich layered cathode materials

Chuanxin Hou, Yuya Oaki, Eiji Hosono, Hong Lin, Hiroaki Imai, Yuqi Fan, Feng Dang

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

xLi2MnO3-(1 − x)LiNi0.33Co0.33Mn0.33O2 (x = 0.4, 0.5 and 0.6) lithium-rich layered cathode materials were synthesized using a bio-inspired method. Nanoporous radial structures composed of nanometric crystalline units, inherited from bio-mimetically synthesized MCO3 (M[dbnd]Mn, Co, Ni) precursors, were obtained for the xLi2MnO3-(1 − x)LiNi0.33Co0.33Mn0.33O2 particles. High discharge capacity of 263 mAh/g and stable cycle performance were obtained from 0.4Li2MnO3–0.6LiNi0.33Co0.33Mn0.33O2 cathodes. Phase separation caused by the incomplete oxidation of metal ions was identified for the metal oxide intermediates topotactic transformed from the bio-mimetically synthesized MCO3 precursors, and caused the degradation of xLi2MnO3-(1 − x)LiNi0.33Co0.33Mn0.33O2 with a high x ratio.

Original languageEnglish
Pages (from-to)718-725
Number of pages8
JournalMaterials and Design
Volume109
DOIs
Publication statusPublished - 2016 Nov 5

Keywords

  • Bio-mimetic process
  • Cathode materials
  • Lithium rich layered materials
  • Lithium-ion battery
  • Nanostructure

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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