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  • Exploiting a robust biopolymer network binder for an ultrahigh-areal-capacity Li-S battery

    Author(s)
    Liu, Jie
    Galpaya, Dilini GD
    Yan, Lijing
    Sun, Minghao
    Lin, Zhan
    Yan, Cheng
    Liang, Chengdu
    Zhang, Shanqing
    Griffith University Author(s)
    Zhang, Shanqing
    Year published
    2017
    Metadata
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    Abstract
    High-loading electrodes play a crucial role in the practical applications of high-energy-density batteries, which are especially challenging for lithium–sulfur (Li–S) batteries. Herein, a mechanically robust network binder was constructed by weaving dual biopolymers (i.e., guar gum and xanthan gum) via the intermolecular binding effect of extensive functional groups in both polymers. This network binder was capable of effectively preventing polysulfides within the electrode from shuttling and, consequently, improved electrochemical performance. A remarkably high sulfur loading of 19.8 mg cm−2 and an ultrahigh areal capacity ...
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    High-loading electrodes play a crucial role in the practical applications of high-energy-density batteries, which are especially challenging for lithium–sulfur (Li–S) batteries. Herein, a mechanically robust network binder was constructed by weaving dual biopolymers (i.e., guar gum and xanthan gum) via the intermolecular binding effect of extensive functional groups in both polymers. This network binder was capable of effectively preventing polysulfides within the electrode from shuttling and, consequently, improved electrochemical performance. A remarkably high sulfur loading of 19.8 mg cm−2 and an ultrahigh areal capacity of 26.4 mA h cm−2 were achieved as a result of the robust mechanical properties of the network binder. This study paves a new way for obtaining high-energy-density batteries by the simple application of robust network biopolymer binders that are inherently low-cost and environmentally friendly.
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    Journal Title
    Energy & Environmental Science
    Volume
    10
    Issue
    3
    DOI
    https://doi.org/10.1039/c6ee03033e
    Subject
    Power and Energy Systems Engineering (excl. Renewable Power)
    Publication URI
    http://hdl.handle.net/10072/364233
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    • Journal articles

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