Low-Cost Synthesis of Hierarchical V2O5 Microspheres as High-Performance Cathode for Lithium-Ion Batteries
2013
Shao, Jie | Li, Xinyong | Wan, Zhongming | Zhang, Longfei | Ding, Yuanlei | Zhang, Li | Qu, Qunting | Zheng, Honghe
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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