The article "Understanding the Cathode-Electrolyte Interfacial Chemistry in Rechargeable Magnesium Batteries" by Hucheng Shi et al. reviews the challenges and advancements in the development of rechargeable magnesium batteries (RMBs). The authors highlight the importance of cathode-electrolyte interfacial chemistry, particularly the unique solvation behavior of Mg²⁺, which poses significant interfacial issues. They discuss recent strategies to promote Mg²⁺ desolvation and alternative intercalation approaches to overcome these challenges. The review also emphasizes the role of electrolyte development and interfacial engineering in enhancing cathode-electrolyte compatibility. Key findings include the critical role of surface species and the formation of cathode-electrolyte interfaces (CEIs) in enabling reversible Mg²⁺ storage. The authors propose perspectives and challenges for establishing a stable interface and fast interfacial chemistry in RMBs, emphasizing the need for further research in this area.The article "Understanding the Cathode-Electrolyte Interfacial Chemistry in Rechargeable Magnesium Batteries" by Hucheng Shi et al. reviews the challenges and advancements in the development of rechargeable magnesium batteries (RMBs). The authors highlight the importance of cathode-electrolyte interfacial chemistry, particularly the unique solvation behavior of Mg²⁺, which poses significant interfacial issues. They discuss recent strategies to promote Mg²⁺ desolvation and alternative intercalation approaches to overcome these challenges. The review also emphasizes the role of electrolyte development and interfacial engineering in enhancing cathode-electrolyte compatibility. Key findings include the critical role of surface species and the formation of cathode-electrolyte interfaces (CEIs) in enabling reversible Mg²⁺ storage. The authors propose perspectives and challenges for establishing a stable interface and fast interfacial chemistry in RMBs, emphasizing the need for further research in this area.