Low-cost synthesis of hierarchical V2O5 microspheres as high-performance cathode for lithium-ion batteries.
2013
Hierarchical V2O5 microspheres composed of stacked platelets are fabricated through a facile, low-cost, and energy-saving approach. The preparation procedure involves a room-temperature precipitation of precursor microspheres in aqueous solution and subsequent calcination. Because of this unique structure, V2O5 microspheres manifest a high capacity (266 mA h g–1), excellent rate capability (223 mA h g–1 at a current density 2400 mA g–1), and good cycling stability (200 mA h g–1 after 100 cycles) as cathode materials for lithium-ion batteries.
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