| 不对称电化学电容器的大电流充放电性能 |
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| 引用本文： | 胡耀强,詹亮,杨俊和,张睿,梁晓怿,凌立成.不对称电化学电容器的大电流充放电性能[J].医学教育探索,2007(5):619-623. |
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| 作者姓名： | 胡耀强 詹亮 杨俊和 张睿 梁晓怿 凌立成 |
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| 作者单位： | 华东理工大学化学工程联合国家重点实验室;上海应用技术学院材料科学与工程系; |
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| 基金项目： | 国家自然科学基金(50672025);;上海市科委资助项目 |
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| 摘 要： | 采用Ni(OH)2和比表面积为1114 m2/g的活性炭分别作正、负电极材料,不对称电化学电容器(67 mm×20 mm×170 mm)在0.24 A/s的放电速率下,电容量达14000 F,6000次反复充放电的容量衰减为9.4%,72 h后的自放电为17%。分析表明:高比表面积活性炭的表面化学性质、杂质含量以及测试温度都将影响不对称电化学电容器的容量稳定性。
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| 关 键 词： | 电化学电容器 不对称电极 活性炭 |
Charge/Discharge Electrode Properties of Asymmetry Electrochemical Capacitor with High Currents |
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| HU Yao-qiang,ZHAN Liang,YANG Jun-he,ZHANG Rui,LIANG Xiao-yi,LING Li-cheng.Charge/Discharge Electrode Properties of Asymmetry Electrochemical Capacitor with High Currents[J].Researches in Medical Education,2007(5):619-623. |
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| Authors: | HU Yao-qiang ZHAN Liang YANG Jun-he ZHANG Rui LIANG Xiao-yi LING Li-cheng |
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| Institution: | 1.State Key Laboratory of Chemical Engineering;East China University of Science and Technology;Shanghai 200237;China;2.Department of Materials Science and Engineering;Shanghai Institute of Technology;Shanghai 200235;China |
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| Abstract: | Electrochemical capacitor with 67 mm length,20 mm width and 170 mm height,was assembled with asymmetry electrode,in which Ni(OH)_2 and activated carbon was used as the anode and cathode electrode materials,respectively.High capacitance was given of 14 000 F with the high discharge velocity of 0.24 A/s if activated carbon with the specific surface area of 1 114 m~2/g was chosen. Moreover,its(capacitance) would keep high and decrease only 9.4% even if it was charged and discharged repeatedly from 1.6 to 0.8 V... |
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| Keywords: | electrochemical capacitor asymmetry electrode activated carbon |
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