enefiting from abundant mineral resources,ultra-high theoretical capacity and excellent safety,aqueous zinc batteries have become a strong contender for next-generation energy storage devices. As an ideal cathode material candidate for zinc batteries,cobalt-based electrode materials have received increasing attention in recent years due to their high output voltage,high theoretical capacity and excellent redox ability (Co2+↔ Co3+↔ Co4+). Although cobalt-based catalysts applied to zinc-air batteries have been reviewed by researchers,they mainly focus on a single catalytic direction,and a systematic summary of the multifunctional properties of cobalt-based electrode materials is lacking. This review introduces the application of multifunctional properties of cobalt-based cathode materials in zinc batteries,combining both their redox and oxygen catalysis capabilities,expanding from zinc-cobalt batteries to zinc-cobalt hybrid systems. Then,the charging and discharging mechanisms in the two battery systems are introduced,following by the current optimization strategies of cobalt-based materials in zinc-cobalt batteries and the design of electrode/ electrolyte three-phase interface in zinc-cobalt hybrid batteries. Finally,this paper introduces the shortcomings of the current research and provides an outlook on future research. © 2024 Cailiao Daobaoshe/ Materials Review. All rights reserved.
