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

页码：1445 / 1450

页数：6

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