Recent Progress on Cathode Materials for Rechargeable Zinc Ion Batteries

Due to their low cost, high capacity, mild assembly and testing conditions, as well as environmentally friendly characteristics, rechargeable zinc ion batteries (RZIBs) have attracted more and more attention. RZIBs have a broad development prospect and may partly replace the traditional batteries in the near future. Tremendous efforts have been devoted to developing various of high‐efficient cathode materials for improving comprehensive performances of RZIBs. However, many problems such as poor electron/ion conductivity, weak structural stability and complex energy storage mechanisms still exist in current cathode materials which hinder the practical application of RZIBs. This paper presents a timely review on recent progresses and challenges in cathode materials for rechargeable zinc ion batteries (RZIBs). Various types of reported cathode materials for RZIBs are summarized, their electrochemical performances were compared and their probable working mechanisms are investigated with the association of computational chemistry. Moreover, the existing problems and expected development directions of these materials were further discussed.