超级电容器
材料科学
比表面积
化学工程
电解质
电极
多孔性
阴极
功率密度
锂(药物)
碳纤维
电化学
复合材料
化学
有机化学
复合数
物理
工程类
内分泌学
物理化学
医学
催化作用
功率(物理)
量子力学
作者
Min Eui Lee,Jiseon Yoo,Hyoung‐Joon Jin,Se Youn Cho,Yong Suk Chung
标识
DOI:10.1016/j.apsusc.2021.148979
摘要
On this work, we prepared the porous activated carbon as cathode of lithium-ion capacitor through two-step fabrication process using kenaf as biomass carbon precursor possible easily scaled-up for industrial production. The biomass-derived porous carbon shows an extremely high specific surface area of 2,719 m2 g−1 and relatively applicable pore volume of 1.6 m3 g−1 as well as well-developed carbon structure. As a result, it exhibits excellent lithium-ion capacitive performances with specific capacity of ~195 mA h g−1 at a current rate of 0.1 A g−1, good rate capability at current rates ranging from 0.1 to 4 A g−1, and outstanding cycling stability in organic electrolyte. These results suggest that the optimization of pore and carbon microstructure of biomass-derived carbon is contributed to outstanding electrochemical performance for improving the energy density of lithium-ion capacitor.
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