Thin Reinforced Ion-Exchange Membranes Containing Fluorine Moiety for All-Vanadium Redox Flow Battery

In this work, we developed pore-filled ion-exchange membranes (PFIEMs) fabricated for the application to an all-vanadium redox flow battery (VRFB) by filling a hydrocarbon-based ionomer containing a fluorine moiety into the pores of a porous polyethylene (PE) substrate having excellent physical and...

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Autores principales:	Ha-Neul Moon, Hyeon-Bee Song, Moon-Sung Kang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	pore-filled ion-exchange membranes all-vanadium redox flow battery hydrocarbon-based ionomer fluorine moiety porous polyethylene substrate oxidation stability Chemical technology TP1-1185 Chemical engineering TP155-156
Acceso en línea:	https://doaj.org/article/8a30eb0d91924689939df714e1d0b745
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spelling	oai:doaj.org-article:8a30eb0d91924689939df714e1d0b7452021-11-25T18:19:55ZThin Reinforced Ion-Exchange Membranes Containing Fluorine Moiety for All-Vanadium Redox Flow Battery10.3390/membranes111108672077-0375https://doaj.org/article/8a30eb0d91924689939df714e1d0b7452021-11-01T00:00:00Zhttps://www.mdpi.com/2077-0375/11/11/867https://doaj.org/toc/2077-0375In this work, we developed pore-filled ion-exchange membranes (PFIEMs) fabricated for the application to an all-vanadium redox flow battery (VRFB) by filling a hydrocarbon-based ionomer containing a fluorine moiety into the pores of a porous polyethylene (PE) substrate having excellent physical and chemical stabilities. The prepared PFIEMs were shown to possess superior tensile strength (i.e., 136.6 MPa for anion-exchange membrane; 129.9 MPa for cation-exchange membrane) and lower electrical resistance compared with commercial membranes by employing a thin porous PE substrate as a reinforcing material. In addition, by introducing a fluorine moiety into the filling ionomer along with the use of the porous PE substrate, the oxidation stability of the PFIEMs could be greatly improved, and the permeability of vanadium ions could also be significantly reduced. As a result of the evaluation of the charge–discharge performance in the VRFB, it was revealed that the higher the fluorine content in the PFIEMs was, the higher the current efficiency was. Moreover, the voltage efficiency of the PFIEMs was shown to be higher than those of the commercial membranes due to the lower electrical resistance. Consequently, both of the pore-filled anion- and cation-exchange membranes showed superior charge–discharge performances in the VRFB compared with those of hydrocarbon-based commercial membranes.Ha-Neul MoonHyeon-Bee SongMoon-Sung KangMDPI AGarticlepore-filled ion-exchange membranesall-vanadium redox flow batteryhydrocarbon-based ionomerfluorine moietyporous polyethylene substrateoxidation stabilityChemical technologyTP1-1185Chemical engineeringTP155-156ENMembranes, Vol 11, Iss 867, p 867 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	pore-filled ion-exchange membranes all-vanadium redox flow battery hydrocarbon-based ionomer fluorine moiety porous polyethylene substrate oxidation stability Chemical technology TP1-1185 Chemical engineering TP155-156
spellingShingle	pore-filled ion-exchange membranes all-vanadium redox flow battery hydrocarbon-based ionomer fluorine moiety porous polyethylene substrate oxidation stability Chemical technology TP1-1185 Chemical engineering TP155-156 Ha-Neul Moon Hyeon-Bee Song Moon-Sung Kang Thin Reinforced Ion-Exchange Membranes Containing Fluorine Moiety for All-Vanadium Redox Flow Battery
description	In this work, we developed pore-filled ion-exchange membranes (PFIEMs) fabricated for the application to an all-vanadium redox flow battery (VRFB) by filling a hydrocarbon-based ionomer containing a fluorine moiety into the pores of a porous polyethylene (PE) substrate having excellent physical and chemical stabilities. The prepared PFIEMs were shown to possess superior tensile strength (i.e., 136.6 MPa for anion-exchange membrane; 129.9 MPa for cation-exchange membrane) and lower electrical resistance compared with commercial membranes by employing a thin porous PE substrate as a reinforcing material. In addition, by introducing a fluorine moiety into the filling ionomer along with the use of the porous PE substrate, the oxidation stability of the PFIEMs could be greatly improved, and the permeability of vanadium ions could also be significantly reduced. As a result of the evaluation of the charge–discharge performance in the VRFB, it was revealed that the higher the fluorine content in the PFIEMs was, the higher the current efficiency was. Moreover, the voltage efficiency of the PFIEMs was shown to be higher than those of the commercial membranes due to the lower electrical resistance. Consequently, both of the pore-filled anion- and cation-exchange membranes showed superior charge–discharge performances in the VRFB compared with those of hydrocarbon-based commercial membranes.
format	article
author	Ha-Neul Moon Hyeon-Bee Song Moon-Sung Kang
author_facet	Ha-Neul Moon Hyeon-Bee Song Moon-Sung Kang
author_sort	Ha-Neul Moon
title	Thin Reinforced Ion-Exchange Membranes Containing Fluorine Moiety for All-Vanadium Redox Flow Battery
title_short	Thin Reinforced Ion-Exchange Membranes Containing Fluorine Moiety for All-Vanadium Redox Flow Battery
title_full	Thin Reinforced Ion-Exchange Membranes Containing Fluorine Moiety for All-Vanadium Redox Flow Battery
title_fullStr	Thin Reinforced Ion-Exchange Membranes Containing Fluorine Moiety for All-Vanadium Redox Flow Battery
title_full_unstemmed	Thin Reinforced Ion-Exchange Membranes Containing Fluorine Moiety for All-Vanadium Redox Flow Battery
title_sort	thin reinforced ion-exchange membranes containing fluorine moiety for all-vanadium redox flow battery
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8a30eb0d91924689939df714e1d0b745
work_keys_str_mv	AT haneulmoon thinreinforcedionexchangemembranescontainingfluorinemoietyforallvanadiumredoxflowbattery AT hyeonbeesong thinreinforcedionexchangemembranescontainingfluorinemoietyforallvanadiumredoxflowbattery AT moonsungkang thinreinforcedionexchangemembranescontainingfluorinemoietyforallvanadiumredoxflowbattery
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Thin Reinforced Ion-Exchange Membranes Containing Fluorine Moiety for All-Vanadium Redox Flow Battery

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