Sodium vanadium nitridophosphate Na3V(PO3)3N as a high-voltage positive electrode material for Na-ion and Li-ion batteries
| Autor: | Nebil A. Katcho, Marine Reynaud, Montse Casas-Cabanas, Laura C. Loaiza, Agnieszka Wizner, Teófilo Rojo, Montserrat Galceran, Michel Armand, Javier Carrasco |
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| Rok vydání: | 2017 |
| Předmět: |
Sodium
Inorganic chemistry chemistry.chemical_element Vanadium 02 engineering and technology Electrolyte 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry Alkali metal 01 natural sciences Reference electrode 0104 chemical sciences Ion lcsh:Chemistry lcsh:Industrial electrochemistry lcsh:QD1-999 chemistry Lithium 0210 nano-technology lcsh:TP250-261 |
| Zdroj: | Electrochemistry Communications, Vol 84, Iss, Pp 14-18 (2017) |
| ISSN: | 1388-2481 |
| Popis: | We report the preparation and electrochemical properties of Na3V(PO3)3N made by ammonolysis. Na3V(PO3)3N is reversibly oxidized to Na2V(PO3)3N at high voltage (4.0V vs. Na+/Na0 and 4.1V vs. Li+/Li0) with an unusually small difference in the insertion/extraction voltage between both alkali metal reference electrodes. In both cases, the voltage hysteresis is extremely small (~0.035V vs. sodium and ~0.065V vs. lithium), which suggests facile migration of alkali cations within the structure. Further oxidation to NaV(PO3)3N is predicted to occur beyond the voltage stability window of the electrolytes. Keywords: Li-ion batteries, Na-ion batteries, Positive electrode material, Cathode, Nitridophosphate |
| Databáze: | OpenAIRE |
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