The article "Recent Advances in Zn-ion Batteries" by Song, Tan, Chao, and Fan provides a comprehensive review of the current state and future prospects of zinc-ion batteries (ZIBs). ZIBs are gaining attention due to their low cost, high safety, and eco-efficiency, but developing suitable cathode materials for Zn ion intercalation remains a significant challenge. The review covers various cathode materials, including manganese oxides, vanadium compounds, and Prussian blue analogs, detailing their crystal structures and Zn ion storage mechanisms. It also discusses the role of electrolytes and their influence on electrochemical processes. The authors highlight the current challenges in ZIBs, such as the strong electrostatic interaction between Zn²⁺ ions and cathode materials, and propose future research directions to overcome these challenges. The review emphasizes the importance of understanding the ingress process and the development of better cathode materials for ZIBs.The article "Recent Advances in Zn-ion Batteries" by Song, Tan, Chao, and Fan provides a comprehensive review of the current state and future prospects of zinc-ion batteries (ZIBs). ZIBs are gaining attention due to their low cost, high safety, and eco-efficiency, but developing suitable cathode materials for Zn ion intercalation remains a significant challenge. The review covers various cathode materials, including manganese oxides, vanadium compounds, and Prussian blue analogs, detailing their crystal structures and Zn ion storage mechanisms. It also discusses the role of electrolytes and their influence on electrochemical processes. The authors highlight the current challenges in ZIBs, such as the strong electrostatic interaction between Zn²⁺ ions and cathode materials, and propose future research directions to overcome these challenges. The review emphasizes the importance of understanding the ingress process and the development of better cathode materials for ZIBs.