Sulfur Sandwich Lithium Batteries

  • ChemPubSoc Europe Logo
  • Author: Theresa Kueckmann
  • Published Date: 02 April 2012
  • Source / Publisher: Chemistry An Asian Journal/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
thumbnail image: Sulfur Sandwich Lithium Batteries

Lithium sulfur batteries offer a number of advantages over lithium ion batteries, such as low cost, high capacity, and high energy density. However, it is hard to find appropriate electrolytes, and capacity tends to degrade upon cycling.


A team of researchers led by Guoxiu Wang, University of Technology Sydney, Australia, has reported a sulfur/graphene nanocomposite as a cathode material for improved lithium sulfur batteries. The nanocomposite was prepared by impregnating graphene nanosheets with melted elemental sulfur. The sulfur intercalates between the nanosheets in a sandwich structure. This cushions the effect of the volume expansion of sulfur during electrochemical cycling resulting in high lithium storage capacities (pictured).

With a bis(trifluoromethane)sulfonamide-based electrolyte, the new nanocomposite showed high initial lithium storage capacities and good cyclability, thus paving the way for future applications of lithium sulfur batteries.

Image: © Wiley-VCH


Article Views: 3679

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


CONNECT:

ChemistryViews.org on Facebook

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


A product of ChemPubSoc Europe (16 European Chemical Societies)and Wiley-VCH