High-Capacity Silicon-Air Battery

  • Author: ChemViews
  • Published Date: 11 December 2011
  • Source / Publisher: ChemSusChem/Wiley-VCH
  • Copyright: WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
thumbnail image: High-Capacity Silicon-Air Battery

Related Societies

The ever-increasing demand for portable power sources has motivated considerable research efforts towards a variety of power and energy systems.


Xiangfefng Duan, University of California, Loas Angeles, USA, and colleagues report a high capacity silicon–air battery using
nanostructured silicon and alkaline solution based electrolyte that only involves environmentally friendly elements such as silicon, potassium, oxygen, and hydrogen.

The silicon surface is first modified by the metal-assisted electroless chemical etching method. The assembled battery displays a flat and stable discharge curve with a voltage ranging from 0.9 to 1.2 V
under different discharge current densities over days. In contrast contrast, the unmodified silicon wafer becomes passivated quickly in the alkaline solution and therefore the potential drops rapidly after discharging for a short period of time (minutes).


Article Views: 4539

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

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission and consult our permission guidance prior to making your request

Follow on Facebook Follow on Twitter Follow on YouTube Follow on LinkedIn Follow on Instagram RSS Sign up for newsletters

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