TY  - JOUR
AU  - Vujković, Milica
AU  - Popović, Maja
AU  - Čebela, Maria
AU  - Jugović, Dragana
PY  - 2024
UR  - https://dais.sanu.ac.rs/123456789/16560
AB  - Since LiFePO4 batteries play a major role in the transition to safe, more affordable and sustainable energy production, numerous strategies have been applied to modify LFP cathode, with the aim of improving its electrochemistry. In this contribution, a highly vanadium-doped LiFe0.9V0.1PO4/C composite (LFP/C-10V) is synthesized using the glycine combustion method and characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Thermogravimetry Differential Thermal Analysis (TGDTA) and Cyclic Voltammetry (CV). It is shown that 10wt.% of vanadium can substitute Fe positions, thus decreasing unit cell volume, which is followed by generation of Li3V2PO4 traces, as detected by CV. High vanadium doping does not change the carbon content in the composite (≈ 13 wt.%) but improves its electronic conductivity and electrochemical performance in both aqueous and organic electrolytes. The reversibility and current response are increasing following the trend: LFP/C, LFP/C -3mol%V, LFP/C - 5mol % and LFP/C-10 mol %. The best specific capacity is obtained for the most highly doped olivine, which exhibits a reversible process at 1 mV s-1 in an aqueous electrolyte, thus showing a peak-to-peak distance of 56 mV. The high capacity of LFPC-10V is measured in both LiNO3 and NaNO3 electrolytes amounting to around 100 mAh g-1 at 20 mV s-1. Still, the material is only stable in LiNO3 electrolyte, making it more suitable for Li than Na-ion aqueous rechargeable batteries.
PB  - IOP Publishing
T2  - Materials Research Express
T1  - Heavily vanadium-doped LiFePO4 olivine as electrode material for Li-ion aqueous rechargeable batteries
DO  - 10.1088/2053-1591/ad3463
UR  - https://hdl.handle.net/21.15107/rcub_dais_16560
ER  - 

@article{
author = "Vujković, Milica and Popović, Maja and Čebela, Maria and Jugović, Dragana",
year = "2024",
abstract = "Since LiFePO4 batteries play a major role in the transition to safe, more affordable and sustainable energy production, numerous strategies have been applied to modify LFP cathode, with the aim of improving its electrochemistry. In this contribution, a highly vanadium-doped LiFe0.9V0.1PO4/C composite (LFP/C-10V) is synthesized using the glycine combustion method and characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Thermogravimetry Differential Thermal Analysis (TGDTA) and Cyclic Voltammetry (CV). It is shown that 10wt.% of vanadium can substitute Fe positions, thus decreasing unit cell volume, which is followed by generation of Li3V2PO4 traces, as detected by CV. High vanadium doping does not change the carbon content in the composite (≈ 13 wt.%) but improves its electronic conductivity and electrochemical performance in both aqueous and organic electrolytes. The reversibility and current response are increasing following the trend: LFP/C, LFP/C -3mol%V, LFP/C - 5mol % and LFP/C-10 mol %. The best specific capacity is obtained for the most highly doped olivine, which exhibits a reversible process at 1 mV s-1 in an aqueous electrolyte, thus showing a peak-to-peak distance of 56 mV. The high capacity of LFPC-10V is measured in both LiNO3 and NaNO3 electrolytes amounting to around 100 mAh g-1 at 20 mV s-1. Still, the material is only stable in LiNO3 electrolyte, making it more suitable for Li than Na-ion aqueous rechargeable batteries.",
publisher = "IOP Publishing",
journal = "Materials Research Express",
title = "Heavily vanadium-doped LiFePO4 olivine as electrode material for Li-ion aqueous rechargeable batteries",
doi = "10.1088/2053-1591/ad3463",
url = "https://hdl.handle.net/21.15107/rcub_dais_16560"
}

Vujković, M., Popović, M., Čebela, M.,& Jugović, D.. (2024). Heavily vanadium-doped LiFePO4 olivine as electrode material for Li-ion aqueous rechargeable batteries. in Materials Research Express
IOP Publishing..
https://doi.org/10.1088/2053-1591/ad3463
https://hdl.handle.net/21.15107/rcub_dais_16560

Vujković M, Popović M, Čebela M, Jugović D. Heavily vanadium-doped LiFePO4 olivine as electrode material for Li-ion aqueous rechargeable batteries. in Materials Research Express. 2024;.
doi:10.1088/2053-1591/ad3463
https://hdl.handle.net/21.15107/rcub_dais_16560 .

Vujković, Milica, Popović, Maja, Čebela, Maria, Jugović, Dragana, "Heavily vanadium-doped LiFePO4 olivine as electrode material for Li-ion aqueous rechargeable batteries" in Materials Research Express (2024),
https://doi.org/10.1088/2053-1591/ad3463 .,
https://hdl.handle.net/21.15107/rcub_dais_16560 .