The Current Developments and Perspectives of V2O5 as Cathode for Rechargeable Aqueous Zinc‐Ion Batteries. Issue 2 (15th December 2020)

• Record Type: Journal Article
• Authors: Zhang, Wenwei; Zuo, Chunli; Tang, Chen; Tang, Wen; Lan, Binxu; Fu, Xudong; Dong, Shijie; Luo, Ping
• Is Part Of: Energy technology. Volume 9:Issue 2(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-12-15
• Subjects: aqueous zinc-ion batteries -- cathodes -- energy storage mechanisms -- flexible zinc-ion batteries -- V2O5; Energy development -- Periodicals; Power resources -- Periodicals; 333.79
• DOI: 10.1002/ente.202000789
• Languages: English
• ISSNs: 2194-4288

Abstract

Abstract : In recent years, zinc‐ion batteries (ZIBs) with near neutral (pH ≈ 4–6) Zn 2+ ‐containing aqueous electrolyte have received extensive research due to their advantages of high safety, low production cost, suitable anode zinc, and environmental friendliness, etc. At present, one of the key challenges of aqueous ZIBs is the development of cathode materials with stable structure, rapid kinetics, and high capacity, etc. Compared with other cathode materials, V2 O5 has an important potential application because of its high theoretical specific capacity (589 mA h g −1 ) based on two electron transfers, relatively low production cost, and suitable layered structure that facilitates zinc ion insertion/extraction. Herein, the following sections are proposed: 1) An understanding of the structure and energy storage mechanism of V2 O5 ; 2) The recent development on the aqueous Zn/V2 O5 battery from properties of V2 O5 cathode and composition optimization of battery structure; 3) The application of V2 O5 cathode in flexible ZIBs; and 4) The outlook and development trends in the future. Abstract : A review mainly focused on the advanced modification strategy of V2 O5 for aqueous Zn/V2 O5 batteries is presented, and the structure of V2 O5, energy storage mechanisms for aqueous Zn/V2 O5 batteries, and applications also are discussed.