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|Title:||Synthesis of TiO2 hollow nanofibers by co-axial electrospinning and its superior lithium storage capability in full-cell assembly with olivine phosphate||Authors:||Zhang, X.
|Issue Date:||5-Jul-2013||Citation:||Zhang, X., Aravindan, V., Kumar, P.S., Liu, H., Sundaramurthy, J., Ramakrishna, S., Madhavi, S. (2013-07-05). Synthesis of TiO2 hollow nanofibers by co-axial electrospinning and its superior lithium storage capability in full-cell assembly with olivine phosphate. Nanoscale 5 (13) : 5973-5980. ScholarBank@NUS Repository. https://doi.org/10.1039/c3nr01128c||Abstract:||We report the formation and extraordinary Li-storage properties of TiO 2 hollow nanofibers by co-axial electrospinning in both the half-cell and full-cell configurations. Li-insertion properties are first evaluated as anodes in the half-cell configuration (Li/TiO2 hollow nanofibers) and we found that reversible insertion of ∼0.45 moles is feasible at a current density of 100 mA g-1. The half-cell displayed a good cyclability and retained 84% of its initial reversible capacity after 300 galvanostatic cycles. The full-cell is fabricated with a commercially available olivine phase LiFePO4 cathode under optimized mass loading. The LiFePO 4/TiO2 hollow nanofiber cell delivered a reversible capacity of 103 mA h g-1 at a current density of 100 mA g -1 with an operating potential of ∼1.4 V. Excellent cyclability is noted for the full-cell configuration, irrespective of the applied current densities, and it retained 88% of reversible capacity after 300 cycles in ambient conditions at a current density of 100 mA g-1. © 2013 The Royal Society of Chemistry.||Source Title:||Nanoscale||URI:||http://scholarbank.nus.edu.sg/handle/10635/85731||ISSN:||20403364||DOI:||10.1039/c3nr01128c|
|Appears in Collections:||Staff Publications|
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