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Investigation of non-woven carbon paper as a current collector for sulfur positive electrode—Understanding of the mechanism and potential applications for Li/S batteries

Abstract : Porous 3-D current collectors have been shown to be the primary choice in replacing classical 2D aluminum foil in applicable developments, especially those using carbon-based current collectors. In this study, we investigated the impact of using a non-woven carbon (NWC) based current collector for sulfur electrodes, in terms of performance and practical use in a commercial battery, keeping in mind the simplicity of electrode preparation method. The benefits of using NWC as a 3D current collector include high sulfur utilization for even highly loaded electrodes, lower polarization, and the provision of an efficient electrolyte reservoir. High discharge capacities up to ∼1200 mAh g−1 can be obtained at moderate C-rates, with relatively good capacity retention (<1% loss per cycle) and practical loadings as high as 8 mAh cm−2.
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https://hal.univ-grenoble-alpes.fr/hal-01883270
Contributeur : Fannie Alloin <>
Soumis le : jeudi 27 septembre 2018 - 22:31:47
Dernière modification le : lundi 31 août 2020 - 15:04:45

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S. Waluś, C. Barchasz, R. Bouchet, F. Martin, J.-C. Leprêtre, et al.. Investigation of non-woven carbon paper as a current collector for sulfur positive electrode—Understanding of the mechanism and potential applications for Li/S batteries. Electrochimica Acta, Elsevier, 2016, 211, pp.697 - 703. ⟨10.1016/j.electacta.2016.05.204⟩. ⟨hal-01883270⟩

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