Coral-like V<inf>2</inf>O<inf>5</inf>nanowhiskers as high-capacity cathode materials for lithium-ion batteries

Publication Type:
Journal Article
Citation:
RSC Advances, 2013, 3 (15), pp. 5069 - 5075
Issue Date:
2013-04-21
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Coral-like V2O5nanowhiskers were prepared by a direct electrolytic synthesis method. The as-prepared V2O5nanowhiskers are approximately 1 μm in length and 50-60 nm in width, which was confirmed by scanning electron microscopy and transmission electron microscopy analysis. When applied as cathode materials in lithium-ion batteries and combined with an ionic liquid electrolyte, the V2O5nanowhiskers exhibited an initial capacity of 461 mAh g-1, which is a significant enhancement compared to commercial V2O5powders. The high rate performance of the V2O5nanowhiskers was further improved at an elevated working temperature of 50 °C. The V2O5nanowhiskers demonstrated a high specific capacity and an excellent high-rate performance at elevated temperatures. © 2013 The Royal Society of Chemistry.
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