Cyclic carbonate based-electrolytes enhancing the electrochemical performance of Na4Fe3(PO4)2(P2O7) cathodes for sodium-ion batteries |
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| Affiliation: | 1. School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan 689-798, South Korea;2. Department of Materials Science and Engineering, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul 151-742, South Korea |
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| Abstract: | Binary solvent mixtures containing NaClO4 salt were investigated as electrolytes for sodium-ion batteries. The electrochemical performance of Na4Fe3(PO4)2(P2O7) cathodes was substantially improved when paired with an ethylene carbonate (EC)/propylene carbonate (PC)-based electrolyte. Our investigation revealed that EC/PC/1 M NaClO4 exhibits superior oxidation durability at the cathode and is highly stable toward a Na-metal electrode. |
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