Porous SnO2/CNT composite anodes: Influence of composition and deposition temperature on the electrochemical performance

Abirami Dhanabalan, Yan Yu, Xifei Li, Wei Chen, Kevin Bechtold, Lin Gu, Chunlei Wang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Porous SnO2/multiwalled carbon nanotube (CNT) thin film composites as anode material for Li-ion batteries were prepared using the electrostatic spray deposition (ESD) technique. The morphologies of the samples were found to be affected mainly by deposition temperatures. Electrochemical test cells were assembled using the as-prepared samples without any conductive additive or binder. The influence of deposition temperature and CNT content on the electrochemical performance of the anodes was investigated. Compared to pure tin oxide and pure CNT, the composite anode materials showed better discharge capacity and cyclability. Among the composites, the sample deposited at 250 °C with 30 wt% CNT content was found to show better energy capacity. This can be ascribed to the porous nature of the anodes and the improvement in the conductivity by the addition of CNTs.

Original languageEnglish (US)
Pages (from-to)1554-1560
Number of pages7
JournalJournal of Materials Research
Volume25
Issue number8
DOIs
StatePublished - Aug 1 2010

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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