The Performance of 600F Power Super Capacitor Using Carbon Nanotubes Electrodes and Nonaqueous Electrolyte

• 作者: WANGXiaofeng
• 来源期刊: 电子学报(英文版)
• 学科: 工学
• 关键词: 碳纳米管 双层电容 非水电解液 超级电容
• 年，卷（期）: 2005,（1）
• 页码范围: 45-48
• 页数: 4页
• 分类号: TM535
• 语种: 中文

摘要

Many applications for supercapacitors have been proposed in recent years. The popularity of these devices is derived from their high energy density compared with conventional capacitors and their long cycle life and high power density relative to batteries. Supercapacitors based on charge storage at the interface between a high surface area carbon nanotubes electrode and LiClO4/PC electrolyte is assembled in this paper. The carbon nanotubes prepared catalytically exhibited double layer capacitance of 12F.g^-1 in LiClO4/PC electrolyte. The performance of the capacitor depends not only on the materials used in the cells but also on the construction of the cells. Evaluation of capacitor performance by different techniques is also discussed. The performance of carbon nanotubes based capacitors for high power sources used in electronic equipment or hybrid vehicle application are described. From a constant charge-discharge test, the capacitance of 600 F and impedance of 2.5mΩ are obtained for this device. Values for the specific energy and specific power of 0.SWh-kg-1 and lkW-kg-1, respectively, are demonstrated for a cell with 2.5V maximum operating voltage.