ISSN 1608-4039 (Print)
ISSN 1680-9505 (Online)

For citation:

Skachilova M. G., Shindrov A. A. Optimization of synthesis conditions of Na4Nb8P4O32 electrode material for sodium-ion batteries. Electrochemical Energetics, 2025, vol. 25, iss. 4, pp. 173-177. DOI: 10.18500/1608-4039-2025-25-4-173-177, EDN: DZPWZC

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
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Language: 
Russian
Heading: 
Lithium electrochemical systems
Article type: 
Article
UDC: 
546.33+546.05+544.6+544.2
DOI: 
10.18500/1608-4039-2025-25-4-173-177
EDN: 
DZPWZC

Optimization of synthesis conditions of Na4Nb8P4O32 electrode material for sodium-ion batteries

Autors: 
Skachilova Maria G., Institute of Chemistry of a Solid body and Mechanochemistry of the Siberian Branch of RAS
Shindrov Aleksandr Aleksandrovich, The Saratov State Technical University of Gagarin Yu. A.
Abstract: 

The optimal conditions for the synthesis of Na4Nb8P4O32 were found and the phase composition, morphology and electrochemical properties were studied in this work. The effect of the temperature and the synthesis time on the phase composition of Na4Nb8P4O32 were shown. According to the X-ray phase analysis data the optimal synthesis conditions were 900°C and 2.5 hours. The values of ionic and electronic conductivity were 2.7 · 10−7 S/cm and 6.1 · 10−6 S/cm, respectively. The obtained values of the charge and discharge capacities were 43 mA·h/g and 44 mA·h/g, respectively.

Key words: 
Na4Nb8P4O32
electrode material
electrochemical properties
ionic and electronic conductivity
Acknowledgments: 
The research was carried out with the financial support of the Russian Science Foundation, project No. 25-73-00012 (https://rscf.ru/project/25-73-00012/).
Reference: 
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Received: 
15.10.2025
Accepted: 
17.11.2025
Published: 
25.12.2025