The general synthesis of Ag nanoparticles anchored on silver vanadium oxides: towards high performance cathodes for lithium-ion batteries

Abstract

A general strategy has been developed for the one-pot synthesis of Ag nanoparticles uniformly anchored on silver vanadium oxides (SVOs) including AgVO₃, Ag₂V₄O₁₁, Ag_0.33V₂O₅ and Ag_1.2V₃O₈. All the resulting Ag/SVO hybrids demonstrated excellent lithium ion electrochemical intercalation properties, due largely to the improvement in conductivity with the introduction of silver nanoparticles, the large accessible surface area and possible catalytic effects. For instance, the as-prepared Ag/AgVO₃ hybrid exhibits a superior rate capability, with a high discharge capacity of 199 mA h g⁻¹ even at a rate of 5 A g⁻¹.