Prof. Chunyi Zhi from the City University of Hong Kong has spearheaded a comprehensive review, featured in the esteemed journal Science China Chemistry, shedding light on the latest progress in the realm of metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) for advanced rechargeable zinc-ion batteries (ARZIBs). The study delves into various aspects, encompassing the material design of MOFs/COFs, the storage mechanism of Zn2+ within these frameworks, the potential of MOFs/COFs in regulating Zn2+ deposition behavior, as well as their applicability as separators and solid electrolytes.
The progressive development of MOF/COF-based materials for ARZIBs stands poised to revolutionize energy storage technologies, offering enticing possibilities for enhanced battery performance. Prof. Chunyi Zhi’s team has meticulously examined these advancements, aiming to provide a comprehensive overview of the field.
The first focal point of this review centers around the material design of MOFs and COFs. These porous structures, composed of metal ions linked by organic ligands, exhibit promising attributes for energy storage applications. Researchers have painstakingly explored diverse strategies to optimize the structure and composition of MOFs/COFs, with the aim of achieving superior electrochemical properties and maximizing battery efficiency.
A critical aspect investigated is the intricate storage mechanism of Zn2+ ions within MOFs/COFs. Understanding how these frameworks interact with and retain Zn2+ species is crucial for enhancing the overall performance and longevity of ARZIBs. By unraveling the underlying mechanisms governing Zn2+ storage, scientists can devise innovative approaches to boost the capacity, stability, and cyclability of these rechargeable batteries.
Moreover, the utilization of MOFs/COFs to control the deposition behavior of Zn2+ ions represents a fascinating avenue explored in this study. The deposition of Zn2+ during the charging and discharging processes can lead to undesirable side reactions, diminishing the battery’s lifespan. By leveraging the unique properties of MOFs/COFs, researchers aim to mitigate these issues by regulating the deposition of Zn2+. This approach holds immense promise in improving the overall performance and safety of ARZIBs.
In addition, the review emphasizes the potential of MOFs/COFs as separators and solid electrolytes. These components play a crucial role in facilitating ion transport within the battery system while preventing short circuits. The incorporation of MOFs/COFs as separators and solid electrolytes offers the prospect of enhanced ionic conductivity, improved stability, and superior safety, bringing us closer to the realization of high-performance and long-lasting zinc-ion batteries.
To conclude, Prof. Chunyi Zhi’s exhaustive review encapsulates the recent strides made in the development of MOF/COF-based materials for ARZIBs. Through meticulous exploration of material design, investigation of Zn2+ storage mechanisms, control of deposition behavior, and evaluation of their utility as separators and solid electrolytes, this research sets the stage for future advancements in energy storage technology. With continued efforts and innovative approaches, MOFs and COFs hold tremendous potential in enabling more efficient, safer, and sustainable rechargeable zinc-ion batteries.
