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Insertion compounds and composites made by ball milling for advanced sodium-ion batteries

Author

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  • Biao Zhang

    (Chimie du Solide-Energie, FRE 3677, Collège de France
    Réseau sur le Stockage Electrochimique de l’Energie (RS2E), FR CNRS 3459
    ALISTORE-European Research Institute)

  • Romain Dugas

    (Chimie du Solide-Energie, FRE 3677, Collège de France
    Réseau sur le Stockage Electrochimique de l’Energie (RS2E), FR CNRS 3459
    ALISTORE-European Research Institute)

  • Gwenaelle Rousse

    (Chimie du Solide-Energie, FRE 3677, Collège de France
    Réseau sur le Stockage Electrochimique de l’Energie (RS2E), FR CNRS 3459
    ALISTORE-European Research Institute
    Sorbonne Universités—UPMC Univ Paris 06)

  • Patrick Rozier

    (Réseau sur le Stockage Electrochimique de l’Energie (RS2E), FR CNRS 3459
    ALISTORE-European Research Institute
    University of Toulouse III Paul Sabatier, CIRIMAT CNRS UMR 5085)

  • Artem M. Abakumov

    (EMAT, University of Antwerp
    Skolkovo Institute of Science and Technology)

  • Jean-Marie Tarascon

    (Chimie du Solide-Energie, FRE 3677, Collège de France
    Réseau sur le Stockage Electrochimique de l’Energie (RS2E), FR CNRS 3459
    ALISTORE-European Research Institute
    Sorbonne Universités—UPMC Univ Paris 06)

Abstract

Sodium-ion batteries have been considered as potential candidates for stationary energy storage because of the low cost and wide availability of Na sources. However, their future commercialization depends critically on control over the solid electrolyte interface formation, as well as the degree of sodiation at the positive electrode. Here we report an easily scalable ball milling approach, which relies on the use of metallic sodium, to prepare a variety of sodium-based alloys, insertion layered oxides and polyanionic compounds having sodium in excess such as the Na4V2(PO4)2F3 phase. The practical benefits of preparing sodium-enriched positive electrodes as reservoirs to compensate for sodium loss during solid electrolyte interphase formation are demonstrated by assembling full C/P′2-Na1[Fe0.5Mn0.5]O2 and C/‘Na3+xV2(PO4)2F3’ sodium-ion cells that show substantial increases (>10%) in energy storage density. Our findings may offer electrode design principles for accelerating the development of the sodium-ion technology.

Suggested Citation

  • Biao Zhang & Romain Dugas & Gwenaelle Rousse & Patrick Rozier & Artem M. Abakumov & Jean-Marie Tarascon, 2016. "Insertion compounds and composites made by ball milling for advanced sodium-ion batteries," Nature Communications, Nature, vol. 7(1), pages 1-9, April.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms10308
    DOI: 10.1038/ncomms10308
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