High-rate cathodes based on Li_3V_2(PO_4)_3 nanobelts prepared via surfactant-assisted fabrication

摘要

In this work, we have synthesized monoclinic Li_3V_2(PO_4)_3 nanobelts via a single-step, solid-state reaction process in a molten hydrocarbon. The as-preparedLi_3V_2(PO_4)_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 Li_3V_2(PO_4)_3 nanobelts demonstrate a specific discharge capacity of 131 mAh g~(-1) (which is close to the theoretical capacity of 132 mAhg~(-1)) and stable cycling characteristics.