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Issue 41, 2019
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A facile synthetic approach to nanostructured Li2S cathodes for rechargeable solid-state Li–S batteries

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Abstract

Li–S solid state batteries, employing Li2S as a pre-lithiated cathode, present a promising low cost, high capacity and safer alternative to their liquid electrolyte counterparts, where dissolution of intermediate polysulfide species can result in loss of active material and a subsequent decrease in ionic conductivity. A nanostructured Li2S material would afford greater flexibility in optimising the cathode composite for more harmonious electrode–electrolyte interactions, yet facile routes to such nanoscale materials are limited. Here, we report a facile and scalable microwave approach to directly synthesize nanostructured Li2S from a glyme solution containing lithium polysulfides. As-synthesized Li2S presents an ideal architecture for the construction of free-standing cathodes for all-solid-state Li–S batteries.

Graphical abstract: A facile synthetic approach to nanostructured Li2S cathodes for rechargeable solid-state Li–S batteries

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Supplementary files

Article information


Submitted
22 Jul 2019
Accepted
09 Sep 2019
First published
17 Oct 2019

This article is Open Access

Nanoscale, 2019,11, 19297-19300
Article type
Communication

A facile synthetic approach to nanostructured Li2S cathodes for rechargeable solid-state Li–S batteries

H. El-Shinawi, E. J. Cussen and S. A. Corr, Nanoscale, 2019, 11, 19297
DOI: 10.1039/C9NR06239D

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