Activated carbon electrodes optimization
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LI Shengjuan;WANG Shulin;XU Bo;CHEN Xinlong
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李生娟;王树林;徐波;陈新龙
上海理工大学动力工程学院化工机械研究所,上海 200093
Abstract: In the present study,the commercial activated carbon(AC) as electrode material used by electric double-layer capacitor(EDLC) were modified through physical method.The experiment was carried out in a vibration mill.The resultant activated carbon was characterized by BET surface area, pore size, pore volume and electrochemical performance.BET surface area increased from 1739.77 m28226;g-1 to 2215.40 m28226;g-1 after modification,micro-pore surface and mesopore increased 22% and 35% respectively and pore volume increased by 20%—30%.Both high pore volume and more rational pore distribution of active carbon contributed to better electrochemical characteristics.The modified activated carbon increased the specific capacitance of electrode by 10%, up to 424 F8226;g-1.
摘要: 通过物理方法对双电层电容器用活性炭电极进行改性实验,探讨了活性炭电极的结构(比表面积、孔径分布、孔容)和性能(比电容、充放电特性)的优化问题.改性后活性炭电极BET比表面积从1739.77 m28226;g-1增至2215.40 m28226;g-1,其中微孔比表面积增幅22%,中孔比表面积增幅35%,孔容积也有20%~30%的增幅量,孔径分布更为合理.优化的活性炭电极结构改善了电极材料的电化学特性,比电容量可达424 F8226;g-1,增幅10%.
LI Shengjuan;WANG Shulin;XU Bo;CHEN Xinlong.
李生娟;王树林;徐波;陈新龙 . 双电层电容器活性炭电极的优化 [J]. CIESC Journal.
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https://hgxb.cip.com.cn/EN/Y2006/V57/I7/1617