中文摘要：

为了开发体积小巧、大功率放电性能优良的超级电容器，选用比表面积1660m^2／g的椰壳活性炭，采用扣式电池结构，通过恒电流充放电、电化学阻抗谱、扫描电子显微镜等方法对其用于超级电容器的性能进行了考察。结果表明，选用椰壳活性炭的最大比容量为79F／g，大功率放电性能优良。继而采用该种椰壳活性炭为电极活性物质，以6mol／L KOH为电解液，外包装采用涂覆防腐蚀尼龙层的铝箔袋软包装组装了1V、70F的超级电容器，外形尺寸为35mm×43mm×6mm。测试结果表明其比功率密度为170W／kg或330W／L，比能量密度1Wh／kg，大功率放电特性较好。

英文摘要：

In an attempt to develop small high-power supercapacitors a 1 V-70 F, 9 cm^3, coin-shaped supercapacitor was fabricated using coconut-shell activated carbon with a surface area of 1660 m^2/g and 6 mol/L KOH as the electrolyte. The outer package was made from laminated aluminum foil covered with a nylon insulating layer. The electrochemical behavior was measured by constant current charge/discharge and electrochemical impedance spectroscopy. A specific capacitance of 79 F/g was obtained. Results show that a specific power density of 170 W/kg or 330W/L, and a specific energy density of 1 Wh/kg can be reached with an excellent discharge performance under high current density.