Pre-intercalation of potassium to improve the electrochemical performance of carbon-coated MoO3 cathode materials for lithium batteries

Low conductivity and irreversible structure change impede the practical use of MoO3 as cathode material for rechargeable lithium batteries. In this article, to address these issues, carbon-coated and K-doped MoO3 composite materials (KxMoO3@C) were prepared by hydrothermal treatment followed by a high-temperature annealing. Benefiting from the doped K+ ions, the interlayer spacing of crystal is expanded, and the layered structure of MoO3 is...