Amorphous Sb2S3 embedded in graphite: a high-rate, long-life anode material for sodium-ion batteries.

Amorphous Sb2S3 embedded in a conductive graphite matrix is designed for sodium-ion batteries. Owing to the amorphous structure of the active phase and the conductive graphite matrix, the Sb2S3-graphite electrode exhibits a high initial Coulomblic efficiency, a high rate capacity, and stable cycle performance in sodium-ion batteries.