文献类型：期刊文献

中文题名：超级电容器用复合炭极板电极的电化学性能

英文题名：Study on electrochemical characterization of activated carbon composite electrodes used in supercapacitors

作者：孟庆函[1];刘玲[1];宋怀河[1];凌立成[2]

机构：[1]北京化工大学可控化学反应科学与技术基础教育部重点实验室,北京100029;[2]华东理工大学化工学院,上海200237

年份：2004

卷号：28

期号：7

起止页码：405

中文期刊名：电源技术

外文期刊名：Chinese Journal of Power Sources

收录：CSTPCD;;Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

基金：北京化工大学青年教师基金(QN 0249);国家自然科学基金(50272070)

语种：中文

中文关键词：超级电容器;活性炭;成型

外文关键词：supercapacitor; activated carbon; formed

摘要：用高比表面积活性炭作为原料,酚醛树脂为粘结剂,在高温下粘结成型制备系列超级电容器用固体活性炭极板.采用直流恒流循环法和低温N2吸附对超级电容器电极进行充放电和孔结构分布测试,考察其电化学性能和结构的关系.实验发现,在不同组成的成型活性炭电极中,微孔活性炭含量大,则比电容高,炭化时温度高于800℃复合活性炭电极比电容下降.成型活性炭炭化后比表面积降低,微孔孔结构分布变宽,孔容在2～3 nm左右的分布明显加宽.
High surface area activated carbons were mixed with phenolic resin to prepare the composite electrodes for supercapacitors. And the electrochemical characterization was carried out for activated carbon composites used as polarizable electrodes of super- capacitors in an aqueous electrolytic solution. The porous structures and electrochemical double-layer capacitance of activated carbons were investigated using nitrogen gas adsorption and constant current cycling (CCC) methods. Results show that the BET surface area of formed activated carbons decreases with the increasing of carbonization temperature, while the pore volume distribution at 2-3 nm increases. The more activated carbon content in the formed composite, the higher capacitance the electrode can be reached, but the capacitance of formed activated carbon electrode changes negligibly though the content of the activated carbon decreases.