中文摘要：

以化学和物理性质稳定、导电性好的活性炭纤维（ACF）为电极材料，KOH溶液为电解液，研制炭基双电层电容器。研究了电解液浸渍电极时体系的真空度、KOH质量分数、电极片组成及厚度对双电层电容器性能的影响，并通过正交实验优化制备双电层电容器的工艺条件。结果显示，高真空度、高质量分数电解液有助于提高电容量。以质量分数40％KOH溶液为电解液，电极组成为ACF：石墨：聚四氟乙烯=1．6：0．4：1，单个电极片质量为0．10g的最佳工艺条件，得到的双电层电容器中活性炭纤维的比电容可达到152．81F／g。

英文摘要：

Carbon -based electric double -layer capacitors （EDLC） were made with activated carbon fiber （ACF） as electrode material and KOH as electrolyte. The influence of preparation conditions on the performance of EDLCs, such as vacuity when the electrodes were immersed in the electrolyte solution, KOH concentration, proportion and amount of ACF in the electrode and the thickness of electrode were investigated. The results show that high vacuity and high concentration of KOH are favorable to increase the capacity of EDLCs. The optimal parameters obtained through a designed orthogonal experiment are as follows： KOH concentration, 40% ; the ratio of ACF： Graphite： Polytetrafluomethylene = 1.6： 0. 4： 1; the specific capacity of ACF in the EDLC made under the optimized conditions could be as high as 152. 8 F/g.