Issue 43, 2017

A high tenacity electrode by assembly of a soft sorbent and a hard skeleton for lithium–sulfur batteries

Abstract

The volume expansion of a sulfur cathode can be accommodated by fabricating a composite structure with a soft (nitrogen-doped graphene) and a hard (silicon carbide whisker) material in lithium sulfur batteries. Due to trapping of soluble polysulfides by soft nitrogen-doped graphene and building a strong structure with a hard silicon carbide whisker, it delivered a high specific capacity of 1288 mA h g−1 at a current density of 335 mA g−1 and exhibited a capacity retention of more than 80% after 150 cycles.

Graphical abstract: A high tenacity electrode by assembly of a soft sorbent and a hard skeleton for lithium–sulfur batteries

Supplementary files

Article information

Article type
Communication
Submitted
10 Aug 2017
Accepted
04 Sep 2017
First published
04 Sep 2017

J. Mater. Chem. A, 2017,5, 22459-22464

A high tenacity electrode by assembly of a soft sorbent and a hard skeleton for lithium–sulfur batteries

X. Tang, Z. Sun, J. Liang, J. Zhao, H. Cheng, S. Zhuo and F. Li, J. Mater. Chem. A, 2017, 5, 22459 DOI: 10.1039/C7TA07063B

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