Solution-combustion synthesis of Na3(VO1-x)2(PO4)2F1+2x as a positive electrode material for sodium-ion batteries
Abstract Sodium-vanadium fluorophosphates (NVPF) comprise a family of highly potent positive electrode materials for sodium-ion batteries, combining high energy density due to their high operating potential and good high-rate performance provided by NASICON structure. In this study, a self-combustio...
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Nature Portfolio
2025-08-01
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| Series: | Communications Engineering |
| Online Access: | https://doi.org/10.1038/s44172-025-00471-w |
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| author | Oskar Grabowski Michal Krajewski Magdalena Winkowska-Struzik Andrzej Czerwinski |
| author_facet | Oskar Grabowski Michal Krajewski Magdalena Winkowska-Struzik Andrzej Czerwinski |
| author_sort | Oskar Grabowski |
| collection | DOAJ |
| description | Abstract Sodium-vanadium fluorophosphates (NVPF) comprise a family of highly potent positive electrode materials for sodium-ion batteries, combining high energy density due to their high operating potential and good high-rate performance provided by NASICON structure. In this study, a self-combustion approach to synthesise Na3(VO1-x)2(PO4)2F1+2x (0 ≤ x ≤ 1) is reported. The method described here is based on a citrate-nitrate combustion process. As a result of the synthesis, phase-pure NVPF with uniform morphology and average grain size of 98 nm is obtained. Moreover, the self-combustion method implemented in this study results in the acquisition of a powder with excellent performance in Na-ion systems, showing high capacity (ca. 111 mAh g−1), cyclability (ca. 94% of capacity retention), and high-rate performance (ca. 91% of capacity retention). The self-combustion technique described in this paper shows a promising approach to synthesising fluorinated polyanion compounds for Na-ion batteries. |
| format | Article |
| id | doaj-art-d09349953b7047bfbe993cdf4782f9d9 |
| institution | Kabale University |
| issn | 2731-3395 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Engineering |
| spelling | doaj-art-d09349953b7047bfbe993cdf4782f9d92025-08-20T04:03:07ZengNature PortfolioCommunications Engineering2731-33952025-08-01411910.1038/s44172-025-00471-wSolution-combustion synthesis of Na3(VO1-x)2(PO4)2F1+2x as a positive electrode material for sodium-ion batteriesOskar Grabowski0Michal Krajewski1Magdalena Winkowska-Struzik2Andrzej Czerwinski3Faculty of Chemistry, University of WarsawFaculty of Chemistry, University of WarsawFaculty of Chemistry, University of WarsawFaculty of Chemistry, University of WarsawAbstract Sodium-vanadium fluorophosphates (NVPF) comprise a family of highly potent positive electrode materials for sodium-ion batteries, combining high energy density due to their high operating potential and good high-rate performance provided by NASICON structure. In this study, a self-combustion approach to synthesise Na3(VO1-x)2(PO4)2F1+2x (0 ≤ x ≤ 1) is reported. The method described here is based on a citrate-nitrate combustion process. As a result of the synthesis, phase-pure NVPF with uniform morphology and average grain size of 98 nm is obtained. Moreover, the self-combustion method implemented in this study results in the acquisition of a powder with excellent performance in Na-ion systems, showing high capacity (ca. 111 mAh g−1), cyclability (ca. 94% of capacity retention), and high-rate performance (ca. 91% of capacity retention). The self-combustion technique described in this paper shows a promising approach to synthesising fluorinated polyanion compounds for Na-ion batteries.https://doi.org/10.1038/s44172-025-00471-w |
| spellingShingle | Oskar Grabowski Michal Krajewski Magdalena Winkowska-Struzik Andrzej Czerwinski Solution-combustion synthesis of Na3(VO1-x)2(PO4)2F1+2x as a positive electrode material for sodium-ion batteries Communications Engineering |
| title | Solution-combustion synthesis of Na3(VO1-x)2(PO4)2F1+2x as a positive electrode material for sodium-ion batteries |
| title_full | Solution-combustion synthesis of Na3(VO1-x)2(PO4)2F1+2x as a positive electrode material for sodium-ion batteries |
| title_fullStr | Solution-combustion synthesis of Na3(VO1-x)2(PO4)2F1+2x as a positive electrode material for sodium-ion batteries |
| title_full_unstemmed | Solution-combustion synthesis of Na3(VO1-x)2(PO4)2F1+2x as a positive electrode material for sodium-ion batteries |
| title_short | Solution-combustion synthesis of Na3(VO1-x)2(PO4)2F1+2x as a positive electrode material for sodium-ion batteries |
| title_sort | solution combustion synthesis of na3 vo1 x 2 po4 2f1 2x as a positive electrode material for sodium ion batteries |
| url | https://doi.org/10.1038/s44172-025-00471-w |
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