Hierarchical Microstructured K3V2(PO4)3/C‐Composite Electrode for Potassium‐Ion Batteries through Scalable Spray‐Drying Approach
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| Format: | Artículo Open Access |
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Wiley
2025
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| author | Andreas Heyn Celine Röder Holger Geßwein Ali Ahmadian Martin Velazquez‐Rizo Nicole Bohn Fabian Jeschull Joachim R. Binder |
| author_facet | Andreas Heyn Celine Röder Holger Geßwein Ali Ahmadian Martin Velazquez‐Rizo Nicole Bohn Fabian Jeschull Joachim R. Binder Andreas Heyn Celine Röder Holger Geßwein Ali Ahmadian Martin Velazquez‐Rizo Nicole Bohn Fabian Jeschull Joachim R. Binder |
| collection | Wiley Open Access |
| contents | Hierarchical Microstructured K3V2(PO4)3/C‐Composite Electrode for Potassium‐Ion Batteries through Scalable Spray‐Drying Approach Andreas Heyn Celine Röder Holger Geßwein Ali Ahmadian Martin Velazquez‐Rizo Nicole Bohn Fabian Jeschull Joachim R. Binder ChemSusChem Potassium vanadium phosphate K3V2(PO4)3 (KVP) is a promising polyanionic cathodic material for potassium‐ion batteries. As many other polyanionic materials KVP suffers from low electronic conductivity and shows just limited electrochemical performance. To overcome this limitation and improve the electrochemical performance, an easily scalable spray‐drying process is developed to create hierarchically structured KVP/C composites. The spray‐drying process leads to spherical and open porous granules of KVP particles wrapped in a carbon matrix, formed by the decomposition of sucrose and β‐lactose. The influence of different carbon sources (sucrose and β‐lactose) onto the granules’ microstructure is systematically studied and correlated it with the electrochemical performance of the KVP/C. The best‐performing composition is employed to study different electrolyte additives with the aim to improve the electrolyte stability at high potentials in potassium half‐cells. 10.1002/cssc.202501111 http://creativecommons.org/licenses/by/4.0/ |
| doi_str_mv | 10.1002/cssc.202501111 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_cssc_202501111 |
| institution | Wiley Open Access |
| license_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| publishDate | 2025 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Hierarchical Microstructured K3V2(PO4)3/C‐Composite Electrode for Potassium‐Ion Batteries through Scalable Spray‐Drying Approach Andreas Heyn Celine Röder Holger Geßwein Ali Ahmadian Martin Velazquez‐Rizo Nicole Bohn Fabian Jeschull Joachim R. Binder ChemSusChem Hierarchical Microstructured K3V2(PO4)3/C‐Composite Electrode for Potassium‐Ion Batteries through Scalable Spray‐Drying Approach Andreas Heyn Celine Röder Holger Geßwein Ali Ahmadian Martin Velazquez‐Rizo Nicole Bohn Fabian Jeschull Joachim R. Binder ChemSusChem Potassium vanadium phosphate K3V2(PO4)3 (KVP) is a promising polyanionic cathodic material for potassium‐ion batteries. As many other polyanionic materials KVP suffers from low electronic conductivity and shows just limited electrochemical performance. To overcome this limitation and improve the electrochemical performance, an easily scalable spray‐drying process is developed to create hierarchically structured KVP/C composites. The spray‐drying process leads to spherical and open porous granules of KVP particles wrapped in a carbon matrix, formed by the decomposition of sucrose and β‐lactose. The influence of different carbon sources (sucrose and β‐lactose) onto the granules’ microstructure is systematically studied and correlated it with the electrochemical performance of the KVP/C. The best‐performing composition is employed to study different electrolyte additives with the aim to improve the electrolyte stability at high potentials in potassium half‐cells. 10.1002/cssc.202501111 http://creativecommons.org/licenses/by/4.0/ |
| title | Hierarchical Microstructured K3V2(PO4)3/C‐Composite Electrode for Potassium‐Ion Batteries through Scalable Spray‐Drying Approach |
| topic | ChemSusChem |
| url | https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cssc.202501111 |