β-MnO2 nanolayer coated on carbon cloth as a high-activity aqueous zinc-ion battery cathode with high-capacity and long-cycle-life

• Published in: Materials letters Vol. 248; pp. 207 - 210
• Main Authors: Deng, Zhihong, Huang, Jingdong, Liu, Jun, Ren, Lu, Zhu, Lingze, Xiao, Xinyu, Tan, Mixue
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.08.2019; Elsevier BV
• Subjects: Aqueous zinc-ion battery; Batteries; Carbon; Carbon cloth; Cathodes; Cloth; Composite materials; Electrochemical analysis; Energy storage and conversion; Manganese dioxide; Materials science; Product development; Structural; Zinc; β-MnO2; β-MnO2; Carbon cloth; Composite materials; Structural; Energy storage and conversion; Aqueous zinc-ion battery
• ISSN: 0167-577X; 1873-4979
• DOI: 10.1016/j.matlet.2019.04.036

•β-MnO2 nanolayer coated on carbon cloth (MnO2@CC) was synthesized for aqueous Zn-MnO2 battery.•The battery demonstrates good electrochemical performance.•The excellent performance is attributed to its unique structure. A β-MnO2 nanolayer coated on carbon cloth (MnO2@CC) was prepared for aqueous Zn-MnO2 battery. The MnO2@CC cathode demonstrates good electrochemical performance, including high specific capacity (326 mA h g−1 at 100 mA g−1) and excellent long term cycling performance (90–100 mA h g−1 at 2000 mA g−1 for 700 cycles). The excellent performance is attributed to its unique structure: the outer surface of β-MnO2 nanolayer is fully in contact with the electrolyte and the inner surface is closely combined with the conductive carbon cloth.