Preparation and properties of amphoteric ion exchange membrane for all vanadium redox flow batteries

Jianjun Zhang; Xiaohua Chen; Rui Long; Jianlong Si; Chun Liu; Sude Ma

Results in Physics (Sep 2019)

Preparation and properties of amphoteric ion exchange membrane for all vanadium redox flow batteries

Jianjun Zhang,
Xiaohua Chen,
Rui Long,
Jianlong Si,
Chun Liu,
Sude Ma

Affiliations

Jianjun Zhang: Key Laboratory of Fluid and Power Machinery, Ministry of Education, School of Materials Science and Engineering, Xihua University, Chengdu, Sichuan Province 610039, PR China; Materials Research and Education Center, Auburn University, Auburn, AL 36849, USA
Xiaohua Chen: Key Laboratory of Fluid and Power Machinery, Ministry of Education, School of Materials Science and Engineering, Xihua University, Chengdu, Sichuan Province 610039, PR China
Rui Long: Global Opto-Electro Energy-Saving Technology Co., Ltd., Yibin 644000, PR China
Jianlong Si: Global Opto-Electro Energy-Saving Technology Co., Ltd., Yibin 644000, PR China
Chun Liu: Key Laboratory of Fluid and Power Machinery, Ministry of Education, School of Materials Science and Engineering, Xihua University, Chengdu, Sichuan Province 610039, PR China
Sude Ma: Key Laboratory of Fluid and Power Machinery, Ministry of Education, School of Materials Science and Engineering, Xihua University, Chengdu, Sichuan Province 610039, PR China; Corresponding author at: Key Laboratory of Fluid and Power Machinery of Ministry of Education, School of Materials Science and Engineering, Xihua University, Chengdu 610039, PR China.

Journal volume & issue: Vol. 14

Abstract

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The amphoteric ion exchange membrane basing on cheap polyetheretherketone (PEEK) engineering plastics was prepared by modification reactions and casting method in this investigation. The membrane was characterized by Fourier transformer infrared and thermogravimetric analysis. The IEC and sheet resistance of the membrane were also measured. The energy efficiency was tested by an experimental application device. Results show that the sulfonic acid and quaternary ammonium groups are introduced into the molecule chain successfully. The membrane has good thermal stability and IEC as high as 2.58 mol/kg, and the sheet resistance of which is 0.11 Ω/cm2. The energy efficiency of the membrane is 74.87%. The good properties and low price of the product in this investigation imply the large scale potential applications in VRFBs. Keywords: All vanadium redox flow battery, Ion exchange membrane, Ion exchange capacity, Sheet resistance, Energy efficiency

Published in Results in Physics

ISSN: 2211-3797 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/results-in-physics/

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