Electrodeposition Chemistry Toward High‐Safety and High‐Energy‐Density Rechargeable Multivalent Ion Batteries

Abstract Developing “beyond lithium‐ion ” batteries with reduced cost per unit of stored energy, high safety, and good electrochemistry performance is regarded to be an urgent task for rechargeable battery systems ascribing to the coming technical bottleneck of the state‐of‐the‐art commercial Li‐ion batteries. Rechargeable multivalent ion batteries (RMIBs), such as Zn ²⁺ , Mg ²⁺ , Ca ²⁺ , and Al ³⁺ ion batteries, have attracted intensive attention due to their low cost, high safety, high energy density, and operating availability. However, the development of high‐performance RMIBs, is severely hindered due to the lack of appropriate cathode materials, electrolytes with wide electrochemical windows, and highly reversible and stable anodes.Therefore, some research progress on RMIBs is reviewed and summarized However, most of the reported reviews mainly focus on the cathode and electrolyte of RMIBs. A comprehensive review of anode chemistry is not reported yet. In particular, the fundamental electrodeposition chemistry of RMIBs is not fully understood. This review summarizes the recent advances and the basic mechanism in researching anode electrodeposition chemistry for RMIBs. The understanding of the anode electrodeposition chemistry can accelerate the development of the application of practical RMIBs is hoped.