NaxMV(PO4)3(M = Mn, Fe, Ni) Structure and Properties for Sodium Extraction

Weidong Zhou, Leigang Xue, Xujie Lü, Hongcai Gao, Yutao Li, Sen Xin, Gengtao Fu, Zhiming Cui, Ye Zhu, John B. Goodenough

Research output: Journal article publicationJournal articleAcademic researchpeer-review

99 Citations (Scopus)

Abstract

NASICON (Na+super ionic conductor) structures of NaxMV(PO4)3(M = Mn, Fe, Ni) were prepared, characterized by aberration-corrected STEM and synchrotron radiation, and demonstrated to be durable cathode materials for rechargeable sodium-ion batteries. In Na4MnV(PO4)3, two redox couples of Mn3+/Mn2+and V4+/V3+are accessed with two voltage plateaus located at 3.6 and 3.3 V and a capacity of 101 mAh g-1at 1 C. Furthermore, the Na4MnV(PO4)3cathode delivers a high initial efficiency of 97%, long durability over 1000 cycles, and good rate performance to 10 C. The robust framework structure and stable electrochemical performance makes it a reliable cathode materials for sodium-ion batteries.
Original languageEnglish
Pages (from-to)7836-7841
Number of pages6
JournalNano Letters
Volume16
Issue number12
DOIs
Publication statusPublished - 14 Dec 2016

Keywords

  • framework oxide
  • manganese oxidation
  • Na transport +
  • Sodium cathodes
  • STEM

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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