Solid-state preparation of single-phase Na 2 Zr 2-x Si 2 PO 12-2x solid electrolyte for na-ion solid-state batteries Ademola Adetona 1,2 , Dr Ge Wang 3 , Dr. Brant Walkley 2 , Prof. Ian Reaney 2 1 University of Lagos, UK, 2 University of Sheffield, UK, 3 University of Manchester, UK Na-ion solid-state batteries are promising large-scale energy storage systems due to the ubiquity and cost of sodium compounds. Na Super-Ionic CONductor (NASICON) has been widely studied; to date, researchers have not been able to prepare a phase pure Na x+1 Zr 2 Si x P 3-x O 12 with compositions invariably containing the ZrO 2 secondary phase. Solid-state methods have been used to prepare a single-phase Na 3 Zr 2-x Si 2 PO 12-2x . Density, morphology, and electrical conductivity of the phase pure Na 3 Zr 2-x Si 2 PO 12-2x are explored and compared with Na 3 Zr 2 Si 2 PO 12 (ZrO 2 second phase). References 1. X. Zeng et al. , “Commercialization of Lithium Battery Technologies for Electric Vehicles,” Adv. Energy Mater. , vol. 9, no. 27, pp. 1–25, 2019. 2. Y. Ding, Z. P. Cano, A. Yu, J. Lu, and Z. Chen, “Automotive Li-Ion Batteries: Current Status and Future Perspectives,” Electrochem. Energy Rev. , vol. 2, no. 1, pp. 1–28, 2019. 3. T. Placke, R. Kloepsch, S. Dühnen, and M. Winter, “LiLithium-lithium metal, and alternative rechargeable battery technologies: the odyssey for high energy density,” J. Solid State Electrochem. , vol. 21, no. 7, pp. 1939–1964, 2017.
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