| 钒电池电解液体积变化规律研究 |
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| 引用本文： | 赵永涛,席靖宇,滕祥国,武增华,邱新平. 钒电池电解液体积变化规律研究[J]. 化学学报, 2011, 69(2): 132-136 |
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| 作者姓名： | 赵永涛 席靖宇 滕祥国 武增华 邱新平 |
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| 作者单位： | (1 清华大学深圳研究生院绿色化学电源实验室 深圳 518055)(2 清华大学化学系 北京 100084)(3 哈尔滨工业大学(威海)应用化学系 威海 264209) |
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| 基金项目： | 国家自然科学基金(No.20973099); 深圳市基础研究计划(No.JC200903180530A)资助项目 |
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| 摘 要： | 研究了钒电池在使用阳离子交换膜稳定运行过程中电解液体积的变化情况, 分析了影响因素, 并总结了变化规律. 离子的电迁移使电解液体积随充放电容量的变化线性改变, 充电过程正极电解液体积线性减小, 负极电解液体积线性增大; 放电过程反之. 多次充放电循环过程中, 钒离子的净渗透方向是由负极到正极, 水的净变化方向与钒离子相同, 最终使得多次循环过程正极电解液的体积逐渐增加.
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| 关 键 词： | 钒电池 电解液 体积变化率 离子电迁移率 |
Electrolyte Volume Change Study in All Vanadium Redox Flow Battery |
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| Zhao Yongtao,Xi Jingyu,Teng Xiangguo,Wu Zenghua,Qiu Xinping. Electrolyte Volume Change Study in All Vanadium Redox Flow Battery[J]. Acta Chimica Sinica, 2011, 69(2): 132-136 |
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| Authors: | Zhao Yongtao Xi Jingyu Teng Xiangguo Wu Zenghua Qiu Xinping |
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| Affiliation: | (1 Laboatory of Advanced Power Sources, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055)(2 Department of Chemistry, Tsinghua University, Beijing 100084)(3 Department of Applied Chemistry, Harbin Institute of Technology (Weihai), Weihai 264209) |
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| Abstract: | Rule of electrolyte volume change was studied when the all vanadium redox flow battery was running stably with a cation exchange membrane.Electric transfer of ions will make the volume change linearly with the changing of charge-discharge capacity,that is,the positive electrolyte will be less and the negative electrolyte will be more during the charge process,which will be reversed in the discharge process.The direction of net infiltration of vanadium ions is from the negtive electrolyte to the positive ele... |
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| Keywords: | all vanadium redox flow battery electrolyte rate of volume change ionic mobility |
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