Advances in metal phosphides for sodium‐ion batteries

The authors give a glimpse at metal phosphides for sodium-ion batteries. Metal phosphides (MPs, M = Sn, Fe, Ni, Cu, Co, Ge, V, Zn, Mo, et al.), possessing the advantages of high electrical conductivities, and high gravimetric and volumetric specific capacities, are considered to be the potential anode materials for sodium-ion batteries (SIBs). This review comprehensively presents the recent development of MP anodes for sodium storage, including the synthesis methods, electrochemical mechanisms, and advanced modification strategies. In addition, to promote the wide application of the emerging MP anodes for SIBs, several research emphases in the future are pointed out to overcome challenges toward the commercial application. (DOI: https://doi.org/10.1002/sus2.19)