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Synthesis and crystal chemistry of the NaMSO4F family (M = Mg, Fe, Co, Cu, Zn) |
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| Authors: | Marine ReynaudPrabeer Barpanda,Gwenaë lle RousseJean-Noë l Chotard,Brent C. MelotNadir Recham,Jean-Marie Tarascon |
| Affiliation: | a Laboratoire de Réactivité et Chimie des Solides, Université de Picardie Jules Verne, CNRS UMR 6007, 33 rue Saint Leu, 80039 Amiens, France b Department of Chemical System Engineering, The University of Tokyo, 5-604, 7-3-1 Hongo, Bunkyo-Ku, 113-8656 Tokyo, Japan c Institut de Minéralogie et de Physique des Milieux Condensés (IMPMC), Université Pierre et Marie Curie, CNRS UMR 7590, Case courrier 115, 4 Place Jussieu, 75252 Paris Cedex 05, France d Collège de France, 11 Place Marcelin Berthelot, 75005 Paris, France |
| Abstract: | Our work in metal fluorosulphate chemistry, which was triggered by the discovery of the tavorite-phase of LiFeSO4F, has unveiled many novel Li- and Na-based phases with desirable electrochemical and/or transport properties. Further exploring this rich crystal chemistry, we have synthesized the Na-based magnesium, copper and zinc fluorosulphates, which crystallise in the maxwellite (tavorite-like framework) structure just as their Fe and Co counterparts, which were previously reported. These phases show ionic conductivities in the range of ∼10−7 S cm−1 or ∼10−11 S cm−1 depending upon their synthesis process and no reversible electrochemical activity versus Na. |
| Keywords: | Fluorosulphate Cathode Tavorite-like framework Ionic conductivity Battery |
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