High specific capacity and mechanism of a metal–organic framework based cathode for aqueous zinc-ion batteries. (23rd November 2022)

• Record Type: Journal Article
• Authors: Gou, Wenshan; Chen, Hao; Xu, Zhao; Sun, Yifei; Han, Xuguang; Liu, Mengmeng; Zhang, Yan
• Is Part Of: Energy advances. Volume 1:Number 12(2022)
• Page Start: 1065
• Page End: 1070
• Publication Date: 2022-11-23
• Subjects: Periodicals; Fuel cells; Electrochemistry; Chemical engineering; Thermoelectricity; 621.31242
• DOI: 10.1039/d2ya00257d
• Languages: English
• ISSNs: 2753-1457

Abstract

Abstract : MOF-73 is explored as a novel cathode for aqueous zinc-ion batteries, and a co-contribution zinc ion storage mechanism is illustrated. Abstract : Rechargeable aqueous zinc-ion batteries (AZIBs) are promising for large-scale energy storage due to their high safety and low cost but the reported cathode materials still suffer from limited specific capacities and poor cycle performance. Herein, the Mn-based metal–organic framework (MOF), MOF-73, is used for the first time to make a novel cathode for AZIBs and its great capacity enhancement mechanism is investigated. Results show that MOF-73 can render a voltage plateau of ∼1.45 V and induce manganese ions to co-contribute a high-specific capacity of 815 mA h g −1 (0.84 mA h cm −2 ). This work sheds light on the fundamentals of the electrochemical zinc energy storage of MOFs while holding great promise for exploring novel MOFs as cathodes for AZIBs.