In recent times, iodine is more and more incorporated with zinc anodes to make sustainable zinc–iodine (Zn–I2) batteries (ZIBs) because of its high redox capability (I2/I-, 0.62 V vs. regular hydrogen electrode) and large hypothetical capacity (211 mAh g-1).
This work demonstrates an efficient approach to regulating the porous structure and surface properties in the design of advanced iodine electrodes for high-performance zinc-iodine batteries.