| 恒压对万法级MnO2/C超级电容器性能影响研究 |
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| 引用本文： | 张春霞,舒畅,陈野,张密林,韩丹丹.恒压对万法级MnO2/C超级电容器性能影响研究[J].中国锰业,2006,24(2):21-24. |
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| 作者姓名： | 张春霞 舒畅 陈野 张密林 韩丹丹 |
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| 作者单位： | 哈尔滨工程大学,化工学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 采用固相法制备了纳米棒状MnO2,用XRD和TEM对其结构与形貌进行了表征.以所制备的MnO2和活性碳为电极活性物质,组装成混合型超级电容器,并就恒压时间对其电容性能的影响进行了研究.结果表明,恒压时间越长,超级电容器的放电电容越大,自放电速率越低.16 A恒流充放电时,最佳恒压时间为10 min,此时超级电容器的电容为11006.1 F;50 A恒流充放电时,最佳恒压时间为5 min,此时超级电容器的电容为10 083.3 F.
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| 关 键 词： | 超级电容器 恒压时间 自放电 |
| 文章编号： | 1002-4336（2006）02-0021-04 |
| 收稿时间： | 2006-03-16 |
| 修稿时间： | 2006年3月16日 |
Properties of Ten Thousand Farad MnO2/C Supercapacitor With Different Time of Constant Potential |
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| ZHANG Chun-xia,SHU Chang,CHEN Ye,ZHANG Mi-lin,HAN Dan-dan.Properties of Ten Thousand Farad MnO2/C Supercapacitor With Different Time of Constant Potential[J].China's Manganese Industry,2006,24(2):21-24. |
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| Authors: | ZHANG Chun-xia SHU Chang CHEN Ye ZHANG Mi-lin HAN Dan-dan |
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| Affiliation: | Department of Chemical Engineering, Harbin Engineering University, Haerbin, Heilongjiang 150001, China |
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| Abstract: | Rod shaped-MnO2 was prepared by solid state reaction. Its structure was characterized by XRD and TE M. A supercapacitor was assembled with Nano-MnO2 and activated carbon. Electrochemical properties and the rate of self-discharge were measured by constant current charge/discharge with different time of constant potential. The result shows that the longer is the time of constant potential, the bigger is the discharge capacitance and the lower is the self-discharge rate. The best time of constant potential is 15rain under constant current charge/ discharge with 16A and the capacitance is 11006.1F. For 50A, the best time of constant potential is 5min and the capacitance is 10083.3F. |
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| Keywords: | MnO2 |
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