Nanosheets-based ZnO–NiO microspheres for lithium-ion batteries

Tingting Cao, Dong Fang, Lei Liu, Zhiping Luo, Qing Wang, Lijie Dong, Chuanxi Xiong

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

Nanosheets-based ZnO–NiO microspheres were synthesized by a simple hydrothermal route combined with subsequent heat treatment at moderate temperature. The physical properties of the resulting samples were characterized by scanning electron microscopy, transmission electron microscope, and X-ray diffraction, respectively. The results show that composite materials, nanosheets-based ZnO–NiO microspheres have been successfully synthesized. For comparison, nanosheets-based ZnO or NiO microspheres were also prepared in the similar method. The nanosheets-based ZnO–NiO microspheres obtained after annealing at 500 °C showed a remarkable composite effect, delivering a higher discharge capacity (733 mAh g−1 at 100 mA g−1 after 50 cycles) and excellent cycling stability in comparison to those of single ZnO or NiO nanosheets. These findings make ZnO–NiO microspheres promising anodes for lithium-ion batteries. The results of this study also offer possibilities of improving the lithium storage capacity of transition metal oxides by controlling both architecture and composition.

Original languageEnglish (US)
Pages (from-to)5279-5286
Number of pages8
JournalJournal of Materials Science: Materials in Electronics
Volume26
Issue number7
DOIs
StatePublished - Jul 24 2015

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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