NaTi₂(PO₄)₃/Carbon and NaTi₂(PO₄)₃/Graphite Composites as Anode Materials for Aqueous Rechargeable Na-ion Batteries

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  • YUNWEI HE
    School of Chemistry & Environmental Engineering, Wuhan Institute of Technology
  • HUA Yuan
    School of Chemistry & Environmental Engineering, Wuhan Institute of Technology
  • YUANXIN Wu
    School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology
  • CHI Chen
    School of Chemistry Chemical Engineering and Technology, Tianjin University
  • SHI Yang
    School of Chemistry & Environmental Engineering, Wuhan Institute of Technology
  • CHANGCHUN AI
    School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology

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タイトル別名
  • NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>/Carbon and NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>/Graphite Composites as Anode Materials for Aqueous Rechargeable Na-ion Batteries

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NaTi2(PO4)3/carbon and NaTi2(PO4)3/graphite composites as anode materials for aqueous rechargeable Na–ion batteries were synthesized by modified Pechini method and pyrolysis treatment in the inert atmosphere. The structures and carbon contents of the samples were characterized by X-ray diffraction, Scanning Electron Microscopy and carbon–sulfur analyzer respectively. Electrochemical properties were evaluated by galvanostatic discharge/charge test and cyclic voltammetry using a three-electrode system. The first discharge specific capacity of NaTi2(PO4)3/carbon composites was 128.6 mAh g−1 and maintained 117.4 mAh g−1 after 50 cycles at a discharge rate of 2 C. The reversible capacity of the composites remained 66.2 mAh g−1 even at 20 C. NaTi2(PO4)3/carbon composites exhibited better electrochemical performance than NaTi2(PO4)3 and NaTi2(PO4)3/graphite samples.

収録刊行物

  • Electrochemistry

    Electrochemistry 84 (9), 705-708, 2016

    公益社団法人　電気化学会

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