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Issue 15, 2015
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Fabrication of layered Ti3C2 with an accordion-like structure as a potential cathode material for high performance lithium–sulfur batteries

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Abstract

In order to enhance the long-term stability of sulfur cathodes used in rechargeable high energy lithium–sulfur (Li–S) batteries, layered Ti3C2 (L-Ti3C2) with an accordion-like structure was prepared by exfoliating Ti3AlC2 in 40% hydrofluoric acid. The L-Ti3C2 was then loaded with sulfur (57.6 wt%) to form a S/L-Ti3C2 composite. The composite was then used as a cathode material for Li–S batteries, which showed a high initial discharge capacity of 1291 mA h g−1 and an excellent capacity retention of 970 mA h g−1 after 100 cycles. The results suggest that two-dimensional carbides, similar to graphene and/or graphite, are a promising material for a wide range of applications in Li–S batteries and other electrochemical energy storage devices.

Graphical abstract: Fabrication of layered Ti3C2 with an accordion-like structure as a potential cathode material for high performance lithium–sulfur batteries

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Article information


Submitted
24 Dec 2014
Accepted
02 Mar 2015
First published
02 Mar 2015

J. Mater. Chem. A, 2015,3, 7870-7876
Article type
Paper

Fabrication of layered Ti3C2 with an accordion-like structure as a potential cathode material for high performance lithium–sulfur batteries

X. Zhao, M. Liu, Y. Chen, B. Hou, N. Zhang, B. Chen, N. Yang, K. Chen, J. Li and L. An, J. Mater. Chem. A, 2015, 3, 7870
DOI: 10.1039/C4TA07101H

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