Hierarchical BiOCl flowerlike microspheres via a room-temperature solid-state chemical reaction as a new anode for rechargeable magnesium-ion batteries

BiOCl flowerlike microspheres exhibit a favorable cycling performance ascribed to their unique structure. The reaction mechanism of BiOCl contains two steps involving a conversion reaction of BiOCl to Bi as well as the alloying reaction of Bi to Mg 3 Bi 2 .