【摘要】 碳纳米管由于具有良好的导电性、较高的比表面积、优良的化学稳定性,因而被认为是超级电容器的理想电极材料.本文制备了基于碳纳米管的双电层电容器.其比容量为21F/g,等效电阻为2Ω,漏电流为1.5mA.同活性炭相比,碳纳米管电极因为独特的孔隙结构而具有高的比表面积利用率和低的等效电阻.在高功率大容量电容器方面有着广阔的应用前景.更多还原

【Abstract】 Carbon nanotubes are regarded as ideal electrode material used in super capacitors because of its good conductivity,high specific surface area,and excellent chemical stability.In this paper,we fabricate a kind of capacitor based on carbon nanotubes.Its specific capacity is 21 F/g,equivalent series resistance is 2 Ω,leak current 1.5 mA.Compared with activated carbon,carbon nanotubes have higher specific surface area availability and lower equivalent series resistance.The results show that carbon nanotubes will have great prospect for use as a kind of high power and energy capacitors.更多还原