| 离子交换膜全钒液流电池的研究 |
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| 引用本文： | 文越华,张华民,钱鹏,衣宝廉.离子交换膜全钒液流电池的研究[J].电池,2005,35(6):414-416. |
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| 作者姓名： | 文越华 张华民 钱鹏 衣宝廉 |
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| 作者单位： | 中国科学院大连化学物理研究所燃料电池工程中心,辽宁,大连,116023;防化研究院,北京,100083;中国科学院大连化学物理研究所燃料电池工程中心,辽宁,大连,116023 |
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| 基金项目： | 中国科学院知识创新工程项目 |
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| 摘 要： | 阴离子交换膜JAM-10和阳离子交换膜Nafion-117用于全钒液流电池,其物理和电化学性能的研究表明:全氟化Nafion-117膜的机械强度和化学稳定性优于JAM-10膜,且Nafion-117膜的导电性好,适合大电流充放电,但正、负极钒溶液更易于相互渗透,水的转移快,电池的库仑效率低于用JAM-10膜的电池.JAM-10膜对阳离子存在排斥效应,可有效抑制正、负极溶液的交叉污染,但水的转移减慢,电极电阻增大;JAM-10膜电池的库仑效率高,而电压效率低,大电流充放电时更明显.
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| 关 键 词： | 离子交换膜 全钒液流电池 JAM-10 Nafion-117 评价 |
| 文章编号： | 1001-1579(2005)06-0414-03 |
| 修稿时间： | 2005年5月7日 |
Study on ion exchange membrane as a separator for all-vanadium redox flow battery |
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| WEN Yue-hua,ZHANG Hua-min,QIAN Peng,YI Bao-lian.Study on ion exchange membrane as a separator for all-vanadium redox flow battery[J].Battery Bimonthly,2005,35(6):414-416. |
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| Authors: | WEN Yue-hua ZHANG Hua-min QIAN Peng YI Bao-lian |
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| Abstract: | The physical and electrochemical properties of anion exchange membrane JAM-10 and cation exchange membrane Nafion-117 were studied in all-vanadium redox flow battery(VRB).It was shown that the mechanical intensity and chemical stability of perfluorinated Nafion-117 membrane were better than that of JAM-10 membrane.In addition,Nafion-117 membrane with high conductivity was suitable for high charge-discharge current.It was easier for vanadium solution to permeate through the Nafion-117 membrane than the JAM-10 membrane,leading to quicker water transport and relatively lower coulombic efficiency.In the case of JAM-10 membrane,the cross-mixing of positive and(negative) electrolytes and the extent of water transfer were(minimized) due to the exclusion effect on cation,but its resistance was(large.) Thus,using the JAM-10 membrane,the VRB had high coulombic efficiency and low voltage efficiency,(especially) at high charge-discharge current. |
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| Keywords: | JAM-10 Nafion-117 |
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