Yanchun Pei, Zhichao Ren, Xueyan Wu, Yan Lv, Na Liang, Hongxia Gao, Pengfei Dong, Xin Luo, Jixi Guo
Supercapacitors have the advantages of fast charging and discharging speeds, high power density, long cycle life, and wide operating temperature range. They are widely used in portable electronic equipment, rail transit, industry, military, aerospace, and other fields. The design and preparation of low-cost, high-performance electrode materials still pose a bottleneck that hinders the development of supercapacitors. In this paper, coal was used as the raw material, and the coal-based porous carbon electrode material was constructed using the iodine intercalation-assisted activation method and used for supercapacitors...
May 5, 2024: Journal of Colloid and Interface Science