Stability and Performance of Commercial Membranes in High-Temperature Organic Flow Batteries.
Membranes (Basel)
; 14(8)2024 Aug 15.
Article
en En
| MEDLINE
| ID: mdl-39195429
ABSTRACT
Redox flow batteries (RFB) often operate at extreme pH conditions and may require cooling to prevent high temperatures. The stability of the battery membranes at these extreme pH-values at high temperatures is still largely unknown. In this paper, a systematic screening of the performance and stability of nine commercial membranes at pH 14 and pH ≤ 0 with temperatures up to 80 °C is conducted in an organic aqueous RFB. Swelling, area resistance, diffusion crossover, battery performance and membrane stability after 40-80 °C temperature treatment are shown, after which a recommendation is made for different user scenarios. The Aquivion E98-05 membrane performed best for both the Tiron/2,7-AQDS battery and the DHPS/Fe(CN)6 battery at 40 mA/cm2, with stable results after 1 week of storage at 80 °C. At 80 mA/cm2, E-620-PE performed best in the DHPS/Fe(CN)6 battery, while Sx-050DK performed best in the Tiron/2,7-AQDS battery.
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1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Membranes (Basel)
Año:
2024
Tipo del documento:
Article
País de afiliación:
Bélgica
Pais de publicación:
Suiza