Vanadium Metaphosphate V(PO3)3 Derived from V‐MOF as a Novel Anode for Lithium‐Ion Batteries

Electrode material is a decisive component that affects the overall performance of lithium‐ion batteries (LIBs). Therefore, many researchers are committed to developing electrode materials with better performance. Metal‐organic frameworks (MOFs) can provide a metal source for phosphate synthesis due to its composition. In this work, a new conversion anode material, vanadium (III) metaphosphate V(PO3)3, is successfully prepared by adding red phosphorus into the synthesized V‐MOF and calcination. V(PO3)3 can reach a high initial discharge capacity of 1068 mA h g−1 and a high reversible capacity of 475 mA h g−1 at a current density of 100 mA g−1. Remarkably, the reversible capacity of 430 mA h g−1 was still maintained after the current density returned from 2000 to 100 mA g−1. In this work, a new conversion anode material, vanadium metaphosphate V(PO3)3, is successfully prepared by adding red phosphorus into the synthesized V‐MOF and calcination. V(PO3)3 obtains a high initial discharge specific capacity of 1068 mA h g−1 at a current density of 100 mA h g−1. In addition, the material obtains an ideal coulombic efficiency close to 100 % in 100 cycles, indicating that V(PO3)3 has a completely reversible lithium ion storage.