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

页码：190 / 194

页数：5

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