Ion transport properties of porous polybenzimidazole membranes for vanadium redox flow batteries obtained via supercritical drying of swollen polymer films

ABSTRACT A novel method of membrane preparation for use in vanadium redox flow batteries by preswelling of poly(2,5‐benzimidazole) films in organic solvent followed by supercritical CO2 assisted solvent removal is proposed. Influence of the organic solvent type on the morphology, proton, and vanadyl...

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Bibliographic Details
Published in:Journal of applied polymer science 2018-05, Vol.135 (20), p.n/a
Main Authors: Sizov, Victor E., Kondratenko, Mikhail S., Gallyamov, Marat O.
Format: Article
Language:English
Subjects:
Carbon dioxide
Ion transport
Ions
Materials science
membrane
Membranes
polybenzimidazole
Polymer films
Polymers
Rechargeable batteries
Solvents
supercritical carbon dioxide
Transport properties
Vanadium
vanadium redox battery
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Summary:ABSTRACT A novel method of membrane preparation for use in vanadium redox flow batteries by preswelling of poly(2,5‐benzimidazole) films in organic solvent followed by supercritical CO2 assisted solvent removal is proposed. Influence of the organic solvent type on the morphology, proton, and vanadyl ion transport properties is studied. The performance of the obtained membranes inside single cells of vanadium redox flow batteries is compared to pristine dense poly(2,5‐benzimidazole) and Nafion 115 membranes. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46262.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.46262