FeSb/FeS heterostructures anchored on exfoliated graphite nanosheets as an advanced anode for sodium-ion batteries

A multi-phase FeSb/FeS nanocomposite anchored on exfoliated graphite (FeSb/FeS-G) was synthesized via calcination and ball milling, showing high capacity (233.57 m Ah g −1 after 900 cycles at 6 A g −1 ) and stability, offering a promising SIB anode material.