Issue 50, 2015

Anchoring nano-sulfur on flat graphene as cathode material for lithium–sulfur battery

Abstract

Nano-sulfur anchored on flat graphene (Nano-S/FG) was achieved by a facile hydrothermal method as high performance cathode materials for lithium–sulfur battery. The obtained Nano-S/FG shows flat morphologies dispersed with numerous nano-sized sulfur particles. Remarkably, nanocrystalline sulfur was anchored on the surfaces of graphene with the help of S–O bonds. The resulted Nano-S/FG with sulfur content as high as 75.4% exhibited excellent lithium storage performance with a high specific reversible capacity of 1268 mA h g−1 at the current of 200 mA g−1, and a specific reversible capacity of 536 mA h g−1 even at the high current of 3200 mA g−1. Additionally, the reversible capacity can remain as high as 900 mA h g−1 after 200 cycles. It can be believed that this work supplied a considerable choice for lithium–sulfur battery.

Graphical abstract: Anchoring nano-sulfur on flat graphene as cathode material for lithium–sulfur battery

Supplementary files

Article information

Article type
Paper
Submitted
02 Mar 2015
Accepted
13 Apr 2015
First published
14 Apr 2015

RSC Adv., 2015,5, 40310-40315

Author version available

Anchoring nano-sulfur on flat graphene as cathode material for lithium–sulfur battery

B. Li, S. Li, J. Liu and J. Xu, RSC Adv., 2015, 5, 40310 DOI: 10.1039/C5RA03685B

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