• Lithium sulfide is an attractive cathode material with a high theoretical specific capacity. However, the poor cycle life and rate capability have remained significant challenges, preventing its practical application. Here, Li2S spheres with size control have been synthesized for the first time, and a CVD method for converting them into stable carbon-coated Li2S core-shell particles has been successfully employed. These [email protected] particles with protective and conductive carbon shells show promising…Read more