SnO2@Co3O4 hollow nano-spheres for a Li-ion battery anode with extraordinary performance

Won Sik Kim, Yoon Hwa, Hong Chan Kim, Jong Hyun Choi, Hun Joon Sohn, Seong Hyeon Hong

Research output: Contribution to journalArticlepeer-review

101 Scopus citations

Abstract

SnO2@Co3O4 hollow nano-spheres have been prepared using the template-based sol-gel coating technique and their electrochemical performance as an anode for lithium-ion battery (LIB) was investigated. The size of synthesized hollow spheres was about 50 nm with the shell thickness of 7–8 nm. The fabricated SnO2@Co3O4 hollow nano-sphere electrode exhibited an extraordinary reversible capacity (962 mAh·g−1 after 100 cycles at 100 mA·g−1), good cyclability, and high rate capability, which was attributed to the Co-enhanced reversibility of the Li2O reduction reaction during cycling.[Figure not available: see fulltext.]

Original languageEnglish (US)
Pages (from-to)1128-1136
Number of pages9
JournalNano Research
Volume7
Issue number8
DOIs
StatePublished - Aug 1 2014
Externally publishedYes

Keywords

  • CoO
  • SnO
  • anode
  • hollow sphere
  • lithium-ion battery

ASJC Scopus subject areas

  • Materials Science(all)
  • Electrical and Electronic Engineering

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