Silver-Decorated MoO₃ as an Anode Material in Lithium-Ion Batteries

The challenges posed by poor conductivity and volume expansion during the lithiation–delithiation process have long been impediments to the widespread adoption of molybdenum trioxide (MoO 3 ) anode materials in lithium-ion batteries (LIBs). In this study, we prepare silver-decorated hydrogenated MoO 3 (Ag/H x MoO 3 ) particles through a facile reduction reaction and further fabricate three-dimensional (3D) porous carbon supports via freeze drying and thermal decomposition methods. The resulting MoO 3 hybrid anodes (Ag/MoO 3 /C) demonstrate enhanced electrochemical performance due to the stabilizing effect of Ag nanoparticles on the surface as well as the conductive and buffering properties of the 3D porous carbon. In comparison to pristine MoO 3 /C, Ag/MoO 3 /C exhibits a higher capacity and longer cycle life in LIBs. It maintains a stable long cycling life of over 100 cycles with a reversible capacity of 622 mAh/g at a current density of 0.2C (220 mA/g). Furthermore, it exhibits good rate performance with a reversible capacity of 300 mAh/g under a high current density of 2C.