Enhanced Lithium Storage Performance of Al-Doped V2O5 Nanowire Cathode Materials

One-dimensional (1D) Al-doped V2O5 nanowires were synthesized by a hydrothermal method and subsequent heat treatment process.The microstructure, surface morphology, and electrochemical performance of the as-prepared 1D Al-doped V2O5 nanowires were analyzed by XRD, XPS, SEM, CV, EIS, and galvanostatic discharge/charge tests.The results show that Al 3+ doping can effectively increase the V 4+ concentration in V2O5 material and prevent the agglomeration of V2O5 nanowires.When used as a cathode material for lithium-ion batteries (LIBs), the Al-doped V2O5 sample exhibits much-enhanced cycling performance, improved high-rate capability, higher electrochemical reaction reversibility, and lower electrochemical reaction resistance than the pure V2O5 sample (without Al 3+ doping).