电源技术Issue(4)：696-697,752,3.
新型聚合物电解质膜在液流电池中的应用
Application of novel polymer electrolyte membrane in all vanadium redox flow battery
王宇翔 1余晴春1
作者信息
- 1. 上海交通大学燃料电池研究所，上海200240
- 折叠
摘要
Abstract
Compared to Nafion117 electrolyte membrane, the feasibility of benzimidazole group-containing sulfonated polyimides (Im-SPI) electrolyte membrane used in al vanadium redox flow battery was investigated. The proton conductivity and VO2+ions penetration rate in 1.5 mol/L VOSO4 solution of Im-SPI membrane were measured. The results show that the proton conductivity of Im-SPI is 0.10 S/cm, much higher than that of Nafion117 membrane, while the permeability of VO2+is 3.43×10-7 cm2/s, a little higher than that of Nafion117 membrane. The single celltest shows that the coulombic efficiency and voltage efficiency of Im-SPI membrane reach 99.67%and 82.41%, and the power efficiency improves by 1.65%than that of Nafion117 membrane under the current density of 60 mA/cm2.关键词
Im-SPI膜/电流效率/电压效率Key words
Im-SPI membrane/coulombic efficiency/voltage efficiency分类
信息技术与安全科学引用本文复制引用
王宇翔,余晴春..新型聚合物电解质膜在液流电池中的应用[J].电源技术,2015,(4):696-697,752,3.
