Low-Cost Membranes for Vanadium Redox-Flow Batteries

被引：3
|
作者：
Dueerkop, Dennis [1 ]
Widdecke, Hartmut [1 ]
Kunz, Ulrich [2 ]
Schilde, Carsten [3 ]
Schmiemann, Achim [1 ]
机构：
[1] Ostfalia Hsch, Angew Wissensch, Inst Recycling, Robert Koch Pl 8a, D-38440 Wolfsburg, Germany
[2] Tech Univ Clausthal, Inst Chem & Elektrochem Verfahrenstech, Leibnizstr 17, D-38678 Clausthal Zellerfeld, Germany
[3] TU Braunschweig, Inst Partikeltech, Volkmaroder Str 5, D-38104 Braunschweig, Germany
来源：
CHEMIE INGENIEUR TECHNIK | 2021年 / 93卷 / 09期
关键词：
Ion exchange membrane; Vanadium redox flow battery;
D O I：
10.1002/cite.202100033
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Reinforced proton exchange membranes (gPEM) are fabricated by coating a polymer suspension onto a polymer mesh. The polymer suspension contains solved poly(ether sulfone) (PES) and dispersed poly(styrene). The poly(styrene) is cross linked, sulfonylated and sulfonated. By using a poly(ether ether ketone) (PEEK) mesh with a thickness of 128 mu m higher proton conductivities were measured compared to Selemion CMVN and Nafion N115 at 25 degrees C. An energy efficiency of 68.6 % was measured with Nafion N115, an energy efficiency of 53.1 % with CMVN and an energy efficiency of 69.4 % with a fabricated reinforced membrane at a current density of 100 mA cm(-2) in a vanadium redox flow cell.
引用
收藏
页码：1445 / 1450
页数：6
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