Wenyao Li1,2, Kaibing Xu2, Bo Li2, J. F. Sun3,2, Feiran Jiang2, Zhishui Yu1, Rujia Zou2, Zhigang Chen2, Junqing Hu2
1School of Material Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
2State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institution Donghua University, Shanghai 201620 (PR China)
3Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032 (PR China)
Tóm tắt
AbstractLarge‐area α‐MnO2 nanoflower arrays are synthesized by using a facile and template‐free electrochemical deposition on flexible graphite paper. These nanoflower arrays exhibit a high specific capacitance of 314 F g−1 at a current density of 1 A g−1 with remarkable rate capability (61.1 % retention at 40 A g−1) and excellent cycle stability. Furthermore, the fabricated flexible symmetric supercapacitor also displays good performance and flexibility.
