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Following lithiation fronts in paramagnetic electrodes with in situ magnetic resonance spectroscopic imaging

Author

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  • Mingxue Tang

    (CNRS, CEMHTI UPR3079, Université d’Orléans
    Réseau sur le Stockage Electrochimique de l’Energie (RS2E), CNRS FR3459)

  • Vincent Sarou-Kanian

    (CNRS, CEMHTI UPR3079, Université d’Orléans
    Réseau sur le Stockage Electrochimique de l’Energie (RS2E), CNRS FR3459)

  • Philippe Melin

    (CNRS, CEMHTI UPR3079, Université d’Orléans
    Réseau sur le Stockage Electrochimique de l’Energie (RS2E), CNRS FR3459)

  • Jean-Bernard Leriche

    (Réseau sur le Stockage Electrochimique de l’Energie (RS2E), CNRS FR3459
    Laboratoire de Réactivité et de Chimie des Solides (UMR 7314), Université de Picardie Jules Verne)

  • Michel Ménétrier

    (Réseau sur le Stockage Electrochimique de l’Energie (RS2E), CNRS FR3459
    ICMCB, CNRS UPR9048, Université de Bordeaux, ENSCBP)

  • Jean-Marie Tarascon

    (Réseau sur le Stockage Electrochimique de l’Energie (RS2E), CNRS FR3459
    Collège de France, CNRS FRE3357, 11 place Marcelin Berthelot
    Alistore European Research Institute, CNRS FR3104)

  • Michaël Deschamps

    (CNRS, CEMHTI UPR3079, Université d’Orléans
    Réseau sur le Stockage Electrochimique de l’Energie (RS2E), CNRS FR3459)

  • Elodie Salager

    (CNRS, CEMHTI UPR3079, Université d’Orléans
    Réseau sur le Stockage Electrochimique de l’Energie (RS2E), CNRS FR3459)

Abstract

Li-ion batteries are invaluable for portable electronics and vehicle electrification. A better knowledge of compositional variations within the electrodes during battery operation is, however, still needed to keep improving their performance. Although essential in the medical field, magnetic resonance imaging of solid paramagnetic battery materials is challenging due to the short lifetime of their signals. Here we develop the scanning image-selected in situ spectroscopy approach, using the strongest commercially available magnetic field gradient. We demonstrate the 7Li magnetic resonance spectroscopic image of a 5 mm-diameter operating battery with a resolution of 100 μm. The time-resolved image-spectra enable the visualization in situ of the displacement of lithiation fronts inside thick paramagnetic electrodes during battery operation. Such observations are critical to identify the key limiting parameters for high-capacity and fast-cycling batteries. This non-invasive technique also offers opportunities to study devices containing paramagnetic materials while operating.

Suggested Citation

  • Mingxue Tang & Vincent Sarou-Kanian & Philippe Melin & Jean-Bernard Leriche & Michel Ménétrier & Jean-Marie Tarascon & Michaël Deschamps & Elodie Salager, 2016. "Following lithiation fronts in paramagnetic electrodes with in situ magnetic resonance spectroscopic imaging," Nature Communications, Nature, vol. 7(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13284
    DOI: 10.1038/ncomms13284
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