High performance polyanthraquinone/Co–Ni(OH)2 aqueous batteries based on hydroxyl and potassium insertion/extraction reactions. Issue 1 (31st October 2019)

• Record Type: Journal Article
• Authors: Liu, Chang; Ma, Ting; Xia, Kexin; Hou, Xuesen; Nian, Qingshun; Cai, Yichao; Liang, Jing
• Is Part Of: Sustainable energy & fuels. Volume 4:Issue 1(2020)
• Page Start: 132
• Page End: 137
• Publication Date: 2019-10-31
• Subjects: Renewable energy sources -- Periodicals; Fuel cells -- Periodicals; Electric batteries -- Periodicals; Electrochemistry -- Periodicals; 660.297
• DOI: 10.1039/c9se00598f
• Languages: English
• ISSNs: 2398-4902

Abstract

Abstract : A high performance poly(1, 4-anthraquinone)/Ni(OH)2 dual-ion battery is designed with high energy/power density and good cycling performance. Abstract : Aqueous potassium ion batteries (APIBs) are safe, robust, and environmentally friendly energy storage equipments. In this work, a high performance K + /OH − hybrid ion aqueous battery, using Co–Ni(OH)2 as the cathode and poly(1, 4-anthraquinone) (P14AQ) as the anode, is proposed and characterized. By tuning the polymerization degree of P14AQ, the P14AQ/Co–Ni(OH)2 battery delivers a high energy/power density of 93 W h kg −1 at 1040 W kg −1 with an improved cycle life. Moreover, this P14AQ/Co–Ni(OH)2 battery shows a wide temperature operation window ranging from −30 °C to 25 °C. This proposed system is expected to be a promising battery for large-scale energy storage.