Electrochemical properties of nanostructured Li1.2V3O8 in aqueous LiNO3 solution |
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Authors: | Ivana Stojkovi? Nikola Cvjeti?anin Miodrag Mitri? Slavko Mentus |
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Affiliation: | aUniversity of Belgrade, Faculty of Physical Chemistry, Studentski Trg 12-16, Belgrade, Serbia;bThe Vinca Institute of Nuclear Sciences, P.O. Box 522, 11158 Belgrade, Serbia |
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Abstract: | The amorphous hydrated precursor of Li1.2V3O8 was synthesized by soft chemistry method, and then heat-treated in air at several temperatures within the range 200–400 °C. The heat-treatment changed its morphological, structural and charging/discharging performance. The product obtained upon the treatment at 300 °C, consisting of uniform, rod-shaped particles, 100–150 nm in diameter and 300–800 nm in length, displayed the best electrochemical performance in aqueous LiNO3 solution. Its initial discharge capacity amounted to 136.8 mAh g−1 at a rate of C/5, which upon 50 charging/discharging cycles decreased for only 12%. |
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Keywords: | Aqueous Li-ion battery Galvanostatic cycling Li1.2V3O8 Li-ion insertion Soft-chemistry synthesis |
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