Sn/SnO2 embedded in mesoporous carbon nanocomposites as negative electrode for lithium ion batteries

Fathy M. Hassan, Zhongwei Chen, Aiping Yu, Zhu Chen, Xingcheng Xiao

Research output: Contribution to journalArticlepeer-review

66 Citations (Scopus)

Abstract

Mesoporous Sn/SnO2/carbon composites with uniformly Sn/SnO 2 embedded within the carbon pore walls have been rationally designed and synthesized. These nanocomposites have been characterized by XRD, SEM, TEM, XPS and tested as negative electrodes in a cell using lithium foil as the counter electrode. The inclusion of metallic Sn in SnO2/CMK-3 resulted in a unique, ordered structure and provided a synergistic effect which resulted in an impressive initial reversible capacity of 799 mAh g-1. In addition, at a higher current of 800 mA g-1, the heterostructure was able to provide a stable capacity of 350 mAh g-1. Furthermore, a retention capacity of ∼670 mAh g-1 was obtained after 60 cycles.

Original languageEnglish
Pages (from-to)844-852
Number of pages9
JournalElectrochimica Acta
Volume87
DOIs
Publication statusPublished - Jan 1 2013
Externally publishedYes

Keywords

  • Composites
  • Lithium ion battery
  • Mesoporous carbon
  • Negative electrode
  • Tin and tin oxides

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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