Metal Chalcogenides: Paving the Way for High‐Performance Sodium/Potassium‐Ion Batteries

Abstract The research of sodium/potassium‐ion batteries (SIBs/KIBs) still has some way to go but its success could possibly radically alter the way electricity is stored and used. As the key part of battery technology, advances in electrode materials are instrumental in accelerating the uptake of these renewable and innovative storage solutions. This is where metal chalcogenides (MCs) that tick all the right boxes can fit in to fill the gap. In this review, an overview is provided on the recent progress of MCs, with an emphasis on nanostructured metal sulfides and selenides, and the impact that metal chalcogenides may have on the future of SIBs and KIBs technology is discussed by taking a glimpse at the diverse set of properties inherent in them. In addition, several promising strategies are highlighted to address the imminent challenges faced by MCs in SIBs and KIBs, hoping to cast an insightful outlook for possible future direction in this field.