Manganese dioxide nanorod arrays on carbon fabric for flexible solid-state supercapacitors

• Published in: Journal of power sources Vol. 239; pp. 64 - 71
• Main Authors: Yu, Minghao, Zhai, Teng, Lu, Xihong, Chen, Xiaojun, Xie, Shilei, Li, Wei, Liang, Chaolun, Zhao, Wenxia, Zhang, Liping, Tong, Yexiang
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.10.2013; Elsevier
• Subjects: Applied sciences; Capacitors. Resistors. Filters; Electrical engineering. Electrical power engineering; Exact sciences and technology; Flexible; Manganese dioxide; Nanorods; Supercapacitors; Various equipment and components; Manganese dioxide; Supercapacitors; Flexible; Nanorods; Array; Solid state; Flexible structure; Supercapacitor; Manganese Oxides; Electrolytic capacitor; Carbon; Nanorod
• ISSN: 0378-7753; 1873-2755
• DOI: 10.1016/j.jpowsour.2013.03.083

We reported the synthesis of large-area manganese oxide nanorods (MONRAs) on carbon fabric and their implementation as flexible supercapacitors. Electrochemical measurements demonstrated that MONRAs exhibited a high capacitance (678Fg−1 at a current density of 0.3Ag−1) with high flexibility and excellent cycle performance (less than 3% capacitance loss after 10,000 cycles). Furthermore, the fabricated solid-state devices based on these MONRAs electrodes exhibited good electrochemical performance and could power a red LED well for about 5min after charging at 0.5mAcm−2 for 30s, with an energy utilization efficiency of about 80%. These findings show that MONRAs are a kind of very promising electrode material for flexible supercapacitors. [Display omitted] •Controllable growth of MnO2 nanorods on 3D conductive carbon cloth.•The MnO2 nanorods achieved a high specific capacitance of 678Fg−1 at 0.3Ag−1.•A flexible and solid-state supercapacitor based on MnO2 has been demonstrated.•The fabricated device exhibited good electrochemical performance.