A membrane based on sulfonated polystyrene for a vanadium solid-salt battery

作者：Wang, Zhian; Hu, Junping; Wu, Xiongwei^*; Ye, Hongqi^*; Zhou, Weibin; Wu, Yuping^*; Holze, Rudolf^*

来源：Journal of Solid State Electrochemistry, 2016, 20(4): 943-948.

DOI：10.1007/s10008-015-2931-7

• Vanadiumsolid-salt battery
• Ion exchange membranes
• Polystyrene
• Energy efficiency

An ion exchange membrane (IEM) usually serves as a separator between the two half-cells and provides an ionic conduction path in redox flow batteries. The new vanadium solid-salt battery (VSSB) presents higher energy density than the traditional vanadium redox flow batteries (VRFBs). However, present IEMs are based on very expensive Nafion (R) membranes. In pursuit of lower cost, a membrane from sulfonated polystyrene (PE-01) is used for VSSB. In comparison with the traditional Nafion (R) 1135, PE-01 shows high energy efficiency with good cycling performance at current densities less than 10 mA cm(-2). This suggests that sulfonated polystyrene membrane is a promising candidate as separator for VSSB.

• 出版日期2016-4
• 单位湖南农业大学; 中南大学