Fabrication Of Layered Ti3C2 With An Accordion-Like Structure As A Potential Cathode Material For High Performance Lithium-Sulfur Batteries

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.

Publication Date

4-21-2015

Publication Title

Journal of Materials Chemistry A

Volume

3

Issue

15

Number of Pages

7870-7876

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1039/c4ta07101h

Socpus ID

84926459434 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84926459434

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