A low-cost SPEEK-K type membrane for neutral aqueous zinc-iron redox flow battery

被引：56
作者：
Chang, Shunli [1 ]
Ye, Jiaye [1 ,2 ]
Zhou, Wei [3 ]
Wu, Chun [1 ]
Ding, Mei [1 ]
Long, Yong [1 ]
Cheng, Yuanhang [4 ]
Jia, Chuankun [1 ,5 ]
机构：
[1] Changsha Univ Sci & Technol, Coll Mat Sci & Engn, Changsha 410114, Hunan, Peoples R China
[2] Chongqing Univ, Sch Mat Sci & Engn, State Key Lab Mech Transmiss, Chongqing 400044, Peoples R China
[3] Hunan Univ Technol, Coll Met & Mat Engn, Zhuzhou 412008, Peoples R China
[4] Natl Univ Singapore, Dept Mat Sci & Engn, Singapore, Singapore
[5] Changsha Univ Sci & Technol, Sch Traff & Transportat Engn, Changsha 410114, Hunan, Peoples R China
来源：
SURFACE & COATINGS TECHNOLOGY | 2019年 / 358卷
关键词：
SPEEK membrane; Zinc-iron redox flow battery; High efficiency; Energy density; Ion exchange membrane; HIGH-ENERGY DENSITY; POROUS MEMBRANES; ION; STABILITY; STORAGE; CARBON;
D O I：
10.1016/j.surfcoat.2018.11.028
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The ions exchange membrane is the key component in the redox flow battery (RFB), which determines the cycle life and the cost of RFB. Herein, we successfully prepared a low-cost K+ formed sulfonated poly(ether ether ketone) (SPEEK-K) membrane for the neutral Zn-Fe redox flow battery (ZFB) by solution casting method. The ZFB based on our SPEEK-K membrane shows outstanding performance with the coulombic efficiency and energy efficiency over 95% and 78%, respectively, at a high current density of 40 mA cm(-2). The cost of SPEEK-K membrane for ZFB is also investigated, compared with commercial Naflon 117 membrane. The comprehensive performance of the SPEEK-K membrane for high energy density ZFB makes this membrane as one of the promising candidates for next generation large-scale energy storage system.
引用
收藏
页码：190 / 194
页数：5
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