用于超级电容器的杉树皮基衍生多孔碳材料

Spruce Bark Derived Porous Carbon Material for Supercapacitors

摘要: 高制造成本一直阻碍着我国超级电容器进入市场化的进程。为了解决这一问题，将价格低廉的杉树皮作为碳电极材料前驱体，最终成功制备高性能的生物质衍生多孔碳材料。在6 M KOH电解液中进行测试(三电极)，比容量可以达到312 F/g (0.5 A/g)，在50 A/g的高电流密度下比电容仍保持43%；在两电极测试时，具有1.4 V大电势窗和6.4 Wh/Kg的能量密度，同时拥有接近7000 W/Kg的功率密度(10 A/g)。

Abstract: High manufacturing costs have been hindering the process of supercapacitors entering the market in our country. In order to solve this problem, the cheap Chinese fir bark was used as the precursor of carbon electrode material, and the high performance biomass-derived porous carbon material was successfully prepared. When tested in A 6 M KOH electrolyte (three electrodes), the specific capacity can reach 312 F/g (0.5 A/g), and the specific capacitance remains 43% at a high current density of 50 A/g. In the two-electrode test, it has A large potential window of 1.4 V and an energy density of 6.4 Wh/Kg, while having a power density of nearly 7000 W/Kg (10 A/g).