中文摘要：

分析了灰分对活性炭制备、孔结构及电化学性能的影响。在活性炭制备过程中,灰分会增加活化剂用量和热量能耗,改变活性炭孔结构;将活性炭用于超级电容器中,灰分会增大电容器的漏电流、电解液扩散电阻及电子传递电阻,增强电容器的自放电,破坏电容器的电化学稳定性。为获得超低灰活性炭,需结合原料特性、制备工艺及活性炭用途选择合适的脱灰时机。

英文摘要：

The effects of ash on the preparation, pore structure and electrochemical properties of activated carbons were analyzed in this paper. During the preparation of activated carbons, the ash will increase the amount of activator and the quantity of heat, and change the pore structure of activated carbons. When the activated carbons are used for supercapacitor electrode, the ash will cause the increase of the leakage current, electrolyte diffusion resistance and electron transfer resistance. At the same time, the ash will enhance the self-discharge of the supercapacitors, and decrease the electrochemical stability. In order to obtain the ultra-low ash activated carbons, it is necessary to combine the characteristics of raw materials, the preparation process and the appropriate time to remove the ash.