High-rate cathodes based on Li3V2(PO4)3 nanobelts prepared via surfactant-assisted fabrication

In this work, we have synthesized monoclinic Li3V2(PO4)3 nanobelts via a single-step, solid-state reaction process in a molten hydrocarbon. The as-prepared Li3V2(PO4)3 nanoparticles have a unique nanobelt shape and are ∼50-nm thick. When cycled in a voltage range between 3.0 V and 4.3 V at a 1C rate, these unique Li3V2(PO4)3 nanobelts demonstrate a specific discharge capacity of 131 mAh g−1 (which is close to the theoretical capacity of 132 mAh g−1) and stable cycling characteristics.

Research highlights▶ Li3V2(PO4)3 nanobelts are synthesized by solid-state reaction in a molten hydrocarbon. ▶ Porous structure is created by uniform shaped nanobelts. ▶ Thus structured materials possess good rate performance and excellent cycle stability. ▶ This method can be used in the development of other functional materials.