Reversible lithium-ion insertion in triclinic hydrated molybdenum oxide nanobelts

Abstract

Up to the present, little success has been achieved using hydrated metal oxides as high-performance LIB anodes, which is impeding their extensive study and their wide applicability. Herein, we for the first time study the electrochemical Li storage properties of the little-studied triclinic hydrated molybdenum oxide MoO₃·xH₂O. Without any special efforts, such as nanosizing or carbon coating, the triclinic system MoO₃·xH₂O nanobelts deliver very high initial Coulombic efficiency (e.g., 98.3%) and high durable reversible Li storage capacities (e.g., 1176 mA h g⁻¹). In light of the urgent demand for energy-storage, we hope our endeavor could blaze a new path, using hydrated metal oxides as anodes, in developing novel high-performance LIBs anodes.