One-Dimensional, Additive-Free, Single-Crystal TiO2 Nanostructured Anodes Synthesized by a Single-Step Aerosol Process for High-Rate Lithium-Ion Batteries

Tandeep S. Chadha, Alok M. Tripathi, Sagar Mitra, Pratim Biswas

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Highly of anode materialse crystal dendritic columnar nanostructures of titanium dioxide (TiO2) were fabricated by using single-step aerosol chemical vapor deposition (ACVD) on stainless-steel current collectors for use as high-rate lithium-ion battery anodes. The synthesized nanostructures exhibited the highest specific capacity (183.5mAhg-1 after 100cycles at 1C rate) ever reported for anatase TiO2 without the use of any conductive additive or binding agents. Exceptional cycling performance and rate capability were also demonstrated making the structures an ideal electrode for high-rate applications, exhibiting no change in nanostructure morphology even after 100cycles. At a current density of 16.75Ag-1 (50C rate), the specific charge capacity of the columnar nanostructures was 278% higher than that of granular nanostructures synthesized by using the same technique. This facile, low-cost synthesis of high-performance anodes thus provides a single-step, scalable alternative to the conventional fabrication of anode materials.

Original languageEnglish (US)
Pages (from-to)906-911
Number of pages6
JournalEnergy Technology
Volume2
Issue number11
DOIs
StatePublished - Nov 1 2014
Externally publishedYes

Keywords

  • Aerosols
  • Chemical vapor deposition
  • Lithium-ion batteries
  • Nanostructures
  • Titanium dioxide

ASJC Scopus subject areas

  • Energy(all)

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