Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance upgrade on Thursday 4th of May 2017 from 8.00am to 9.00am (BST).

During this time our websites will be offline temporarily. If you have any questions please use the feedback button on this page. We apologise for any inconvenience this might cause and thank you for your patience.



Ultrafine Nano-Sulfur Particles Anchored on In-situ Exfoliated Graphene for Lithium-Sulfur Batteries

Abstract

The development of lithium-sulfur is still impeded by two main obstacles, the dissolution of lithium polysulfides and the pristine insulation of sulfur. Here, high energy ball-milling with the assistance of dielectric barrier discharge plasma has been explored to synthesize ultrafine sulfur particles anchored on in-situ exfoliated graphene for Li-S batteries. The formed ultrafine sulfur particles ont only afford more sufficient electrical contact towards graphene support and alleviate volume expansion compared to bulk sulfur. On the other hand, with robust etching function of dielectric barrier discharge plasma, litthle oxygen-doping was observed in exfoliated few-layer graphene, offering sufficient capture sits towards lithium polysulfides. Ultrafine sulfur/graphene composite with little oxygen-doping exhibits a superior cycling performance and rate capability in contrast to the control samples without the exertion of dielectric barrier discharge plasma. Little capacity degradation rate of 0.07% per cycle was achieved at 0.5 C over 500cycles.

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 04 Mar 2017, accepted on 13 Apr 2017 and first published on 13 Apr 2017


Article type: Paper
DOI: 10.1039/C7TA01981E
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
  •   Request permissions

    Ultrafine Nano-Sulfur Particles Anchored on In-situ Exfoliated Graphene for Lithium-Sulfur Batteries

    Z. Ma, L. Tao, D. Liu, Z. Li, Y. ZHANG, Z. liu, H. LIU, R. Chen, J. Huo and S. Wang, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA01981E

Search articles by author