Robust Negative Electrode Materials Derived from Carbon Dots and Porous Hydrogels for High‐Performance Hybrid Supercapacitors

• Published in: Advanced materials (Weinheim) Vol. 31; no. 5; pp. e1806197 - n/a
• Main Authors: Wei, Ji‐Shi, Ding, Chen, Zhang, Peng, Ding, Hui, Niu, Xiao‐Qing, Ma, Yuan‐Yuan, Li, Chao, Wang, Yong‐Gang, Xiong, Huan‐Ming
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 01.02.2019
• Subjects: Carbon; Carbon dots; Construction materials; Electrode materials; Electrodes; hierarchical porous carbons; hybrid supercapacitors; Hydrogels; Lithium; Materials science; Optimization; Porous materials; Supercapacitors; surface states; surface states; hybrid supercapacitors; carbon dots; hierarchical porous carbons; hydrogels
• ISSN: 0935-9648; 1521-4095; 1521-4095
• DOI: 10.1002/adma.201806197

Hybrid supercapacitors generally show high power and long life spans but inferior energy densities, which are mainly caused by carbon negative electrodes with low specific capacitances. To improve the energy densities, the traditional methods include optimizing pore structures and modifying pseudoca...