摘要
以Ni(OH)_2和活性炭为正负极组成复合电化学电容器。用氮吸附和接触角测定润湿性以恒流充、放电等表征方法,研究孔径、比表面积、浸润性对混合电容器电化学性能的影响。结果表明:高润湿性的活性炭有利于电容器容量的提高;具有较多中孔含量的活性炭有利于电容器大电流充放电性能的提高。
Hybrid supercapacitors were fabricated using Ni（OH）2 positive negative and electrodes of activated carbon. The effects of the pore size distribution,BET specific surface and wet characteristic on the capacitance and high power charge discharge performance of the supercapacitors were discussed by means of nitrogen gas adsorption,wetting angle measurement and constant current charge discharge techniques. Resuits show that activated carbon with high wet characteristic and high existence of mesopore structure can give large capacitance and good high power charge and discharge performance.
出处
《炭素》
2007年第1期9-11,共3页
Carbon
关键词
活性炭
浸润性
比表面积
超级电容器
activated carbon
wet characteristic
BET
supercapacitors
