3-D vertically aligned few layer graphene-partially reduced graphene oxide/sulfur electrodes for high performance lithium-sulfur batteries

D. P. Singh, N. Soin, S. Sharma, S. Basak, S. Sachdeva, S. S. Roy, H. W. Zanderbergen, J. A. McLaughlin, M. Huijben, M. Wagemaker

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    3-D vertically aligned few-layered graphene (FLGs) nanoflakes synthesised using microwave plasma enhanced chemical vapour deposition are melt-impregnated with partially reduced graphene oxide-sulfur (PrGO-S) nanocomposites for use in lithium-sulfur batteries. The aligned structure and the presence of interconnected micro voids/channels in the 3-D FLG/PrGO-S electrodes serves as template not only for the high sulfur loading (up to 80 wt%, areal loading of 1.2 mg cm−2) but also compensates for the volume changes occurring during charge-discharge cycles. The inter-connectivity of the electrode system further facilitates fast electronic and ionic transport pathways. Consequently, the binder-free 3-D FLG/PrGO-S electrodes display a high first-cycle capacity (1320 mA h g−1 at C/20), along with excellent rate capability of ∼830 mA h g−1 and 700 mA h g−1 at 2C and 5C rates, respectively. The residual functional groups of PrGO (-OH,-C-O-C-and-COOH) facilitate fast and reversible capture of Li+ ions while confining the polysulfide shuttles, thus, contributing to excellent cycling capability and retention capacity. The 3D electrodes demonstrate excellent capacity retention of ∼80% (1040 mA h g−1 at C/10) over 350 charge-discharge cycles. Comparatively, the 2-D planar PrGO-S electrodes displayed poor electronic conductivity and can only provide 560 mA h g−1 after 150 cycles, thereby further highlighting the vital role of the electrode morphology in improving the electrochemical performance of Li-S batteries.

    LanguageEnglish
    Pages1516-1523
    Number of pages8
    JournalSustainable Energy and Fuels
    Volume1
    Issue number7
    DOIs
    Publication statusPublished - 13 Jul 2017

    Fingerprint

    Graphene
    Sulfur
    Electrodes
    Oxides
    Polysulfides
    Plasma enhanced chemical vapor deposition
    Lithium sulfur batteries
    Functional groups
    Binders
    Nanocomposites
    Microwaves
    Ions

    Cite this

    Singh, D. P. ; Soin, N. ; Sharma, S. ; Basak, S. ; Sachdeva, S. ; Roy, S. S. ; Zanderbergen, H. W. ; McLaughlin, J. A. ; Huijben, M. ; Wagemaker, M. / 3-D vertically aligned few layer graphene-partially reduced graphene oxide/sulfur electrodes for high performance lithium-sulfur batteries. 2017 ; Vol. 1, No. 7. pp. 1516-1523.
    @article{d489657f60364c049348064b5efca31e,
    title = "3-D vertically aligned few layer graphene-partially reduced graphene oxide/sulfur electrodes for high performance lithium-sulfur batteries",
    abstract = "3-D vertically aligned few-layered graphene (FLGs) nanoflakes synthesised using microwave plasma enhanced chemical vapour deposition are melt-impregnated with partially reduced graphene oxide-sulfur (PrGO-S) nanocomposites for use in lithium-sulfur batteries. The aligned structure and the presence of interconnected micro voids/channels in the 3-D FLG/PrGO-S electrodes serves as template not only for the high sulfur loading (up to 80 wt{\%}, areal loading of 1.2 mg cm−2) but also compensates for the volume changes occurring during charge-discharge cycles. The inter-connectivity of the electrode system further facilitates fast electronic and ionic transport pathways. Consequently, the binder-free 3-D FLG/PrGO-S electrodes display a high first-cycle capacity (1320 mA h g−1 at C/20), along with excellent rate capability of ∼830 mA h g−1 and 700 mA h g−1 at 2C and 5C rates, respectively. The residual functional groups of PrGO (-OH,-C-O-C-and-COOH) facilitate fast and reversible capture of Li+ ions while confining the polysulfide shuttles, thus, contributing to excellent cycling capability and retention capacity. The 3D electrodes demonstrate excellent capacity retention of ∼80{\%} (1040 mA h g−1 at C/10) over 350 charge-discharge cycles. Comparatively, the 2-D planar PrGO-S electrodes displayed poor electronic conductivity and can only provide 560 mA h g−1 after 150 cycles, thereby further highlighting the vital role of the electrode morphology in improving the electrochemical performance of Li-S batteries.",
    author = "Singh, {D. P.} and N. Soin and S. Sharma and S. Basak and S. Sachdeva and Roy, {S. S.} and Zanderbergen, {H. W.} and McLaughlin, {J. A.} and M. Huijben and M. Wagemaker",
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    Singh, DP, Soin, N, Sharma, S, Basak, S, Sachdeva, S, Roy, SS, Zanderbergen, HW, McLaughlin, JA, Huijben, M & Wagemaker, M 2017, '3-D vertically aligned few layer graphene-partially reduced graphene oxide/sulfur electrodes for high performance lithium-sulfur batteries', vol. 1, no. 7, pp. 1516-1523. https://doi.org/10.1039/C7SE00195A

    3-D vertically aligned few layer graphene-partially reduced graphene oxide/sulfur electrodes for high performance lithium-sulfur batteries. / Singh, D. P.; Soin, N.; Sharma, S.; Basak, S.; Sachdeva, S.; Roy, S. S.; Zanderbergen, H. W.; McLaughlin, J. A.; Huijben, M.; Wagemaker, M.

    Vol. 1, No. 7, 13.07.2017, p. 1516-1523.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - 3-D vertically aligned few layer graphene-partially reduced graphene oxide/sulfur electrodes for high performance lithium-sulfur batteries

    AU - Singh, D. P.

    AU - Soin, N.

    AU - Sharma, S.

    AU - Basak, S.

    AU - Sachdeva, S.

    AU - Roy, S. S.

    AU - Zanderbergen, H. W.

    AU - McLaughlin, J. A.

    AU - Huijben, M.

    AU - Wagemaker, M.

    PY - 2017/7/13

    Y1 - 2017/7/13

    N2 - 3-D vertically aligned few-layered graphene (FLGs) nanoflakes synthesised using microwave plasma enhanced chemical vapour deposition are melt-impregnated with partially reduced graphene oxide-sulfur (PrGO-S) nanocomposites for use in lithium-sulfur batteries. The aligned structure and the presence of interconnected micro voids/channels in the 3-D FLG/PrGO-S electrodes serves as template not only for the high sulfur loading (up to 80 wt%, areal loading of 1.2 mg cm−2) but also compensates for the volume changes occurring during charge-discharge cycles. The inter-connectivity of the electrode system further facilitates fast electronic and ionic transport pathways. Consequently, the binder-free 3-D FLG/PrGO-S electrodes display a high first-cycle capacity (1320 mA h g−1 at C/20), along with excellent rate capability of ∼830 mA h g−1 and 700 mA h g−1 at 2C and 5C rates, respectively. The residual functional groups of PrGO (-OH,-C-O-C-and-COOH) facilitate fast and reversible capture of Li+ ions while confining the polysulfide shuttles, thus, contributing to excellent cycling capability and retention capacity. The 3D electrodes demonstrate excellent capacity retention of ∼80% (1040 mA h g−1 at C/10) over 350 charge-discharge cycles. Comparatively, the 2-D planar PrGO-S electrodes displayed poor electronic conductivity and can only provide 560 mA h g−1 after 150 cycles, thereby further highlighting the vital role of the electrode morphology in improving the electrochemical performance of Li-S batteries.

    AB - 3-D vertically aligned few-layered graphene (FLGs) nanoflakes synthesised using microwave plasma enhanced chemical vapour deposition are melt-impregnated with partially reduced graphene oxide-sulfur (PrGO-S) nanocomposites for use in lithium-sulfur batteries. The aligned structure and the presence of interconnected micro voids/channels in the 3-D FLG/PrGO-S electrodes serves as template not only for the high sulfur loading (up to 80 wt%, areal loading of 1.2 mg cm−2) but also compensates for the volume changes occurring during charge-discharge cycles. The inter-connectivity of the electrode system further facilitates fast electronic and ionic transport pathways. Consequently, the binder-free 3-D FLG/PrGO-S electrodes display a high first-cycle capacity (1320 mA h g−1 at C/20), along with excellent rate capability of ∼830 mA h g−1 and 700 mA h g−1 at 2C and 5C rates, respectively. The residual functional groups of PrGO (-OH,-C-O-C-and-COOH) facilitate fast and reversible capture of Li+ ions while confining the polysulfide shuttles, thus, contributing to excellent cycling capability and retention capacity. The 3D electrodes demonstrate excellent capacity retention of ∼80% (1040 mA h g−1 at C/10) over 350 charge-discharge cycles. Comparatively, the 2-D planar PrGO-S electrodes displayed poor electronic conductivity and can only provide 560 mA h g−1 after 150 cycles, thereby further highlighting the vital role of the electrode morphology in improving the electrochemical performance of Li-S batteries.

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