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Issue 13, 2015
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A high-density graphene–sulfur assembly: a promising cathode for compact Li–S batteries

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Abstract

This work reports a high-density graphene/sulfur assembly for compact Li–S batteries with high volumetric capacity, which retains good structural stability and conductivity. This dense assembly was prepared by a reduction-triggered self-assembly of graphene oxide with simultaneous deposition of sulfur, followed by unique evaporation-induced spatial volume shrinkage. This assembly has an ultrahigh density, delivering an unprecedented volumetric capacity that is much higher than common carbon/sulfur cathodes. In particular, the unique spatial confinement derived from the shrinkage of the graphene/sulfur assembly is favorable for stabilizing sulfur cathodes.

Graphical abstract: A high-density graphene–sulfur assembly: a promising cathode for compact Li–S batteries

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Supplementary files

Article information


Submitted
20 Nov 2014
Accepted
11 Jan 2015
First published
12 Jan 2015

Nanoscale, 2015,7, 5592-5597
Article type
Communication
Author version available

A high-density graphene–sulfur assembly: a promising cathode for compact Li–S batteries

C. Zhang, D. Liu, W. Lv, D. Wang, W. Wei, G. Zhou, S. Wang, F. Li, B. Li, F. Kang and Q. Yang, Nanoscale, 2015, 7, 5592
DOI: 10.1039/C4NR06863G

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