| Zn/V2O5水相二次电池的交流阻抗研究 |
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| 引用本文： | 周家宏,薛宽宏,孙冬梅,徐士民,孔景临.Zn/V2O5水相二次电池的交流阻抗研究[J].物理化学学报,2000,16(5). |
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| 作者姓名： | 周家宏 薛宽宏 孙冬梅 徐士民 孔景临 |
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| 作者单位： | 南京师范大学化学系,南京,210097 |
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| 基金项目： | 江苏省自然科学基金资助项目 |
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| 摘 要： | 钒的氧化物,特别是Ｖ6Ｏ13与Ｖ2Ｏ5,由于具有层状结构,可以嵌入一定量的小体积阳离子而保持原有的晶体结构基本不变,因而作为电池的可逆嵌入电极材料,一直受到广泛重视1-9].从考虑降低电池生产成本、提高电池的安全性和充分利用我国的钒资源角度出发,本课题组研究了锌与一些钒氧化物组成的二次电池,主要是Ｚｎ/Ｖ6Ｏ13有机相二次电池10]和Ｚｎ/Ｖ2Ｏ5水相二次电池11,12].研究结果表明,在一定范围内,锌离子能够可逆地嵌入到上述钒氧化物的层状结构中.该类二次电池具有价格低、安全性能好、能量密度大并具有适度的循环寿命和贮存寿命等优点…
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| 关 键 词： | 二次电池 锌电池 V_2O_5 交流阻抗 |
AC Impedance Study of the Aqueous Zn/V2O5 Secondary Battery |
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| Zhou Jiahong,Xue Kuanhong,Sun Dongmei,Xu Shimin,Kong Jinglin.AC Impedance Study of the Aqueous Zn/V2O5 Secondary Battery[J].Acta Physico-Chimica Sinica,2000,16(5). |
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| Authors: | Zhou Jiahong Xue Kuanhong Sun Dongmei Xu Shimin Kong Jinglin |
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| Abstract: | The dependence of charge transfer resistances of electrodes in the aqueous Zn/V 2O 5 secondary battery on the Zn 2 amount intercalated was studied by means of AC impedance experiments. The results showed that the electrode reaction on cathode was controlled by the diffusion of Zn 2 at the beginning of the discharge process. With the increase of Zn 2 amount intercalated into the cathode, the reaction became a kinetic controlled process, i.e.a process controlled by intercalation of Zn 2 in V 2O 5. |
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| Keywords: | Secondary battery Zinc battery V_2O_5 Impedance |
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