Rechargeable Aqueous Zinc‐Ion Batteries with Mild Electrolytes: A Comprehensive Review. Issue 10 (7th July 2020)

• Record Type: Journal Article
• Authors: Kang, Litao; Cui, Mangwei; Zhang, Zhongtao; Jiang, Fuyi
• Is Part Of: Batteries & supercaps. Volume 3:Issue 10(2020)
• Page Start: 966
• Page End: 1005
• Publication Date: 2020-07-07
• Subjects: zinc-ion battery -- aqueous battery -- aqueous electrolyte -- Zn anode; Electrochemistry -- Periodicals; Electrodes -- Periodicals; Electric batteries -- Periodicals; 621.31242
• DOI: 10.1002/batt.202000060
• Languages: English
• ISSNs: 2566-6223

Abstract

Abstract: Different from the contrary‐old alkaline Zn‐based batteries, aqueous zinc‐ion batteries (ZIBs) refer to a series of safe, long‐life and low‐cost secondary batteries with divalent Zn 2+ working as charge carriers. Compared to market dominant lithium ion batteries (LIBs) and Pb‐acid batteries, aqueous ZIBs feature a precious balance between safety, cost, lifetime, environmental benignity and energy/power density, due to their unique chemistry. The high performances of these batteries stem from the high‐capacities and large redox potential differences of cathodes/anodes, along with the swift redox reactions in the high ionic conductive aqueous electrolytes. With all components being intrinsically safe, stable, low cost and non‐corrosive, aqueous ZIBs hold promising prospects in application fields ranging from large scale energy storage systems to wearable electronics. In this paper, we comprehensively reviewed significant advances in aqueous ZIBs since their innovation in 1986, regarding the Zn 2+ ‐storage mechanisms/design of cathodes, side reactions/stabilizing strategies of anodes/electrolytes, and especially the influence/optimization of current collectors and separators. Finally, a conclusion and outlook on current challenges and research trends of ZIBs is provided. This review attempts to present a general picture of the exploration and evolution of aqueous ZIBs, and to provide some guides for the further development of these energetic yet safe energy storage devices. Abstract : Zinc different ! Aqueous zinc‐ion batteries with mild electrolytes are attracting rapidly growing scientific attention for applications ranging from large scale energy storage systems to wearable electronics, because of their safe, mild, low cost yet energetic nature. In this paper, the history, chemistry, significant advances, challenges and improving strategies of these batteries are comprehensively reviewed and discussed. Finally, a conclusion and outlook on research trends and commercialization challenges of this charming device is provided to provide some guides for the further research.