Tin-Oxide-Derived Anodes for Sodium-Ion Batteries

  • Author: Angewandte Chemie International Edition
  • Published Date: 07 June 2018
  • Source / Publisher: Angewandte Chemie International Edition/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
thumbnail image: Tin-Oxide-Derived Anodes for Sodium-Ion Batteries

Sodium-ion batteries (SIBs) are a cost-effective alternative to the commonly used lithium-ion batteries. Tin oxide (SnO2) is a promising material for use in battery anodes. However, the sluggish reaction kinetics, unstable Sn/Na2O interface, and large volume expansion of this material are obstacles to practical applications of SnO2‐based electrodes for SIBs.

Peixin Zhang, Shenzhen University, China, Zhiqun Lin, Georgia Institute of Technology, Atlanta, USA, and colleagues have developed a material in which SnO2–x nanoparticles, which have oxygen vacancies, are encapsulated by conductive carbon nanofibers. The resulting composite functions as an anode material with good reaction kinetics.

This is due to the material's well-defined void spaces and the high discharge capacity of SnO2–x nanoparticles. The conductive carbon matrix allows a rapid electron/ion transfer and hinders SnO2–x volume expansion during the charge/discharge process, which gives the material excellent cycling stability. In addition, the composite does not require binders or conductive additives to operate as a working electrode.

The team believes that their strategy could be extended to other metal-oxide-containing carbon composites for use as electrodes in high-performance energy-storage systems.


Article Views: 1486

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more


ChemistryViews.org on Facebook

ChemistryViews.org on Twitter ChemistryViews.org on YouTube ChemistryViews.org on LinkedIn Sign up for our free newsletter

Magazine of Chemistry Europe (16 European Chemical Societies)published by Wiley-VCH