An exploratory investigation of the high pressure β-V2O5 polymorph as 3 V cathode material for potassium-ion battery
Loading...
Official URL
Full text at PDC
Publication date
2024
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Citations
Exportar
Citation
Bhatia, A.; Pereira-Ramos, J.-P.; Arroyo-de Dompablo, M. E.; Baddour-Hadjean, R. An Exploratory Investigation of the High Pressure β-V2O5 Polymorph as 3 V Cathode Material for Potassium-Ion Battery. Electrochimica Acta 2024, 492, 144311. https://doi.org/10.1016/j.electacta.2024.144311.
Abstract
Electrochemical potassium-ion insertion in high pressure /high temperature (HP/HT) β-V2O5 polymorph is examined for the first time. Monoclinic HP/HT β-V2O5 delivers a high reversible capacity of 120 mAh g 1 at C/20 rate corresponding to the K0.8V2O5 composition, at an average discharge potential of 3.2 V vs. K+/K. A good cycling performance is achieved over at least 175 cycles at C/5 rate at room temperature, confirming HP/HT β-V2O5 is an efficient host material for K+ insertion-extraction reaction. First insight into the reversibility of the structural changes upon potassiation is given.