Bhatia, AnkushPereira Ramos, Jean-PierreArroyo De Dompablo, María ElenaBaddour Hadjean, Rita2025-03-052025-03-052024-04-23Bhatia, 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.2024.144311.0013-468610.1016/j.electacta.2024.144311https://hdl.handle.net/20.500.14352/118476Electrochemical 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.engjournal article1873-3859https://doi.org/10.1016/j.electacta.2024.144311https://www.sciencedirect.com/science/article/pii/S001346862400553X?via%3Dihubrestricted access546High pressure β-V2O5Layered structureK-ion batteryPositive electrodeCiencias2303.99 Otras