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

    Authors

    X. Q. Zhao; M. Liu; Y. Chen; B. Hou; N. Zhang; B. B. Chen; N. Yang; K. Chen; J. L. Li;L. A. An

    Comments

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    Abbreviated Journal Title

    J. Mater. Chem. A

    Keywords

    HIGH SPECIFIC ENERGY; ION BATTERIES; OXYGEN REDUCTION; ANODE MATERIALS; HIGH-CAPACITY; CARBON; COMPOSITES; TI3ALC2; NANOPLATELETS; EXFOLIATION; Chemistry, Physical; Energy & Fuels; Materials Science, ; Multidisciplinary

    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.

    Journal Title

    Journal of Materials Chemistry A

    Volume

    3

    Issue/Number

    15

    Publication Date

    1-1-2015

    Document Type

    Article

    Language

    English

    First Page

    7870

    Last Page

    7876

    WOS Identifier

    WOS:000352441100026

    ISSN

    2050-7488

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