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- W2969881125 abstract "Electrospinninghas gained immense interests in recent years due to its potential applicationin various fields, including energy storage application. The V2O5/GOas a layered crystal structure has been demonstrated to fabricate nanofiberswith diameters within a range of ~300nm through electrospinning technique. The porous,hollow, and interconnected nanostructures were produced by electrospinning formedby polymers such as Polyvinylpyrrolidone (PVP) and Polyvinyl alcohol (PVA),separately, as solvent polymers with electrospinning technique. In this study, we investigated the synthesis of a graphene-modified nanostructured V2O5 through modified sol-gel method and electrospinningof V2O5/GO hybrid. Electrochemicalcharacterization was performed by utilizing Arbin Battery cycler,Field Emission Scanning ElectronMicroscopy (FESEM), X-ray powder diffraction (XRD), Thermogravimetric analysis (TGA), Mercury Porosimetery, and BET surface areameasurement. As compared to theother conventional fabrication methods, our optimized sol-gel method, followedby the electrospinning of the cathode material achieved a high initial capacityof 342 mAh/g at a high current density of 0.5C (171 mA/g) and thecapacity retention of ~80% after 20 cycles. Also, the prepared sol-gel methodoutperforms the pure V2O5 cathode material, by obtainingthe capacity almost two times higher.The results ofthis study showed that post-synthesis treatment of cathode material plays a prominentrole in electrochemical performance of the nanostructured vanadium oxides. By controlling theannealing and drying steps, and time, a small amount of pyrolysis carbon can beretained, which improves the conductivity of the V2O5nanorods. Also, controlled post-synthesis helped us to prevent aggregation ofelectro-spun twisted nanostructured fibers which deteriorates the lithiumdiffusion process during charge/discharge of batteries." @default.
- W2969881125 created "2019-08-29" @default.
- W2969881125 creator A5078852705 @default.
- W2969881125 date "2020-12-17" @default.
- W2969881125 modified "2023-09-27" @default.
- W2969881125 title "DESIGN AND FABRICATION OF HIGH CAPACITY LITHIUM-ION BATTERIES USING ELECTRO-SPUN GRAPHENE MODIFIED VANADIUM PENTOXIDE CATHODES" @default.
- W2969881125 doi "https://doi.org/10.25394/pgs.9037004.v1" @default.
- W2969881125 hasPublicationYear "2020" @default.
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