| 超电容器活性炭电极储电影响因素的研究 |
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| 引用本文： | 孟庆函,刘玲,宋怀河,凌立成.超电容器活性炭电极储电影响因素的研究[J].电子元件与材料,2003,22(12):1-3,6. |
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| 作者姓名： | 孟庆函 刘玲 宋怀河 凌立成 |
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| 作者单位： | 1. 北京化工大学可控化学反应科学与技术基础教育部重点实验室,北京,100029
2. 中科院山西煤炭化学研究所煤转化国家重点实验室,山西,太原,030001 |
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| 基金项目： | 北京化工大学青年教师基金资助项目(QN0249)，国家自然科学基金资助项目(50272070) |
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| 摘 要： | 用活性炭作为超电容器的电极材料,在不同条件下对超电容器进行充放电测试,考察其在不同充电条件下的容量变化。实验发现,微孔活性炭比表面积较大时有储电的优势,电容器在充电电流强度较小时有较大的容量;随着电流强度的增加,充放电容量逐渐降低。不同的充电方式对其储电容量有较大的影响,漏电流是影响双电层电容器性能的一个重要因素。
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| 关 键 词： | 超电容器 活性炭 储电机制 |
| 文章编号： | 1001-2028(2003)12-0001-03 |
Study on Influencing Factors of Energy-storage of the Activated Carbon Electrodes for Supercapacitors |
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| MENG Qing-han,LIU Ling,SONG Huai-he,LING Li-cheng.Study on Influencing Factors of Energy-storage of the Activated Carbon Electrodes for Supercapacitors[J].Electronic Components & Materials,2003,22(12):1-3,6. |
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| Authors: | MENG Qing-han LIU Ling SONG Huai-he LING Li-cheng |
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| Institution: | MENG Qing-han1,LIU Ling1,SONG Huai-he1,LING Li-cheng2 |
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| Abstract: | Activated carbons (AC) were used as the electrode materials for the supercapacitors in an aqueous electrolytic solution. The changes of the double-layer capacitance of the supercapacitors were investigated using the different charge-discharge ways. It was found that the carbon electrodes with a higher porosity had a higher capacitance and better performance in charge and discharge. The data also showed that the values of discharge capacitance of activated carbons decreased with the increase in the charge current density, and the supercapacitors had the different charge-discharge capacities under the different current densities. The influence of the leakage current of the carbon electrodes on the capacitances could not be considered to be negligible. |
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| Keywords: | supercapacitor activated carbon electricity-storage mechanism |
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