Hollow Porous VOx/C Nanoscrolls as High-Performance Anodes for Lithium-Ion Batteries

Bao Rui Jia, Ming Li Qin, Zi Li Zhang, Shu Mei Li, De Yin Zhang, Hao Yang Wu, Lin Zhang, Xin Lu, Xuan Hui Qu

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Novel hollow porous VOx/C nanoscrolls are synthesized by an annealing process with the VOx/octadecylamine (ODA) nanoscrolls as both vanadium and carbon sources. In the preparation, the VOx/ODA nanoscrolls are first achieved by a two-phase solvothermal method using ammonium metavanadat as the precursor. Upon subsequent heating, the intercalated amines between the vanadate layers in the VOx/ODA nanoscrolls decompose into gases, which escape from inside the nanoscrolls and leave sufficient pores in the walls. As the anodes of lithium-ion batteries (LIBs), such hollow porous VOx/C nanoscrolls possess exceedingly high capacity and rate capability (904 mAh g-1 at 1 A g-1) and long cyclic stability (872 mAh g-1 after 210 cycles at 1 A g-1). The good performance is derived from the unique structural features of the hollow hierarchical porous nanoscrolls with low crystallinity, which could significantly suppress irreversible Li+ trapping as well as improve Li+ diffusion kinetics. This universal method of annealing amine-intercalated oxide could be widely applied to the fabrication of a variety of porous electrode materials for high-performance LIBs and supercapacitors.

Original languageEnglish
Pages (from-to)25954-25961
Number of pages8
JournalACS Applied Materials and Interfaces
Volume8
Issue number39
DOIs
Publication statusPublished - 2016 Oct 5
Externally publishedYes

Keywords

  • VO/C nanoscrolls
  • anodes
  • hollow
  • lithium-ion batteries
  • low-crystalline

ASJC Scopus subject areas

  • Materials Science(all)

Fingerprint Dive into the research topics of 'Hollow Porous VO<sub>x</sub>/C Nanoscrolls as High-Performance Anodes for Lithium-Ion Batteries'. Together they form a unique fingerprint.

Cite this