Understanding sodium battery materials using high-field solid-state nuclear magnetic resonance spectroscopy


LE STUDIUM Multidisciplinary Journal, 2022, 6, 39-44

Dani Kourati 1, Elodie Salager 1, Maria Forsyth 2, Michaël Deschamps 1 and Luke A. O’Dell 2,3
1 CEMHTI-CNRS, 1D Avenue de la Recherche Scientifique, 45071 Orléans cedex 2, France
2 Institute for Frontier Materials, Deakin University, Geelong Waurn Ponds Campus, Victoria 3220, Australia
3 LE STUDIUM Institute for Advanced Studies, 45000 Orléans, France


Two novel solid-state sodium battery electrolyte materials (a polymerised ionic liquid block co-polymer and a zwitterionic plastic crystal) have been characterised by high-field NMR spectroscopy. The results allow the identification of the Na+ solvation environment, which will determine the ion transport mechanism. Additionally, solid-electrolyte interphase products formed in sodium metal batteries containing two different ionic liquid electrolytes have been studied by the same experimental method and a breakdown product of the ionic liquid anion has been tentatively identified. These results demonstrate the power of NMR to provide new insights into sodium battery materials.


Sodium battery electrolytes, nuclear magnetic resonance, polymers, zwitterions, ion interactions
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Le STUDIUM Multidisciplinary Journal