A Critical Update on the Design of Dense Ion‐Conducting Membranes for Redox Flow Batteries DOI

Francesca Niccolai,

Elisa Guazzelli,

Zakaria El Koura

et al.

Advanced Sustainable Systems, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 27, 2024

Abstract Recent progress in the design and preparation of dense ion‐conducting membranes, to improve redox flow batteries (RFBs) performance are critically examined. The ideal membrane has balance a high ionic conductivity, low crossover ion/redox‐active species, coulombic voltage efficiencies. Several ion exchange membranes analyzed, with focus on proton (PEMs), that most mature technology RFBs, led by gold standard Nafion. Key developments include synthesis tailored (co)polymers, post‐functionalization commercially available ones, formation techniques like electrospinning, polymer blending, additions organic inorganic fillers, surface modification. Dense, asymmetric composite reported discussed. effects properties macromolecular parameters (polymer backbone, type length side chains, acidity ion‐exchanging group) highlighted. Correlations between chemical structure, discussed, targeting trade‐off selectivity overall RFB cell. Although significant steps forward development were made, improvements electrochemical long‐term stability, while reducing costs, still challenging necessary large‐scale application RFBs.

Language: Английский

A Critical Update on the Design of Dense Ion‐Conducting Membranes for Redox Flow Batteries DOI

Francesca Niccolai,

Elisa Guazzelli,

Zakaria El Koura

et al.

Advanced Sustainable Systems, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 27, 2024

Abstract Recent progress in the design and preparation of dense ion‐conducting membranes, to improve redox flow batteries (RFBs) performance are critically examined. The ideal membrane has balance a high ionic conductivity, low crossover ion/redox‐active species, coulombic voltage efficiencies. Several ion exchange membranes analyzed, with focus on proton (PEMs), that most mature technology RFBs, led by gold standard Nafion. Key developments include synthesis tailored (co)polymers, post‐functionalization commercially available ones, formation techniques like electrospinning, polymer blending, additions organic inorganic fillers, surface modification. Dense, asymmetric composite reported discussed. effects properties macromolecular parameters (polymer backbone, type length side chains, acidity ion‐exchanging group) highlighted. Correlations between chemical structure, discussed, targeting trade‐off selectivity overall RFB cell. Although significant steps forward development were made, improvements electrochemical long‐term stability, while reducing costs, still challenging necessary large‐scale application RFBs.

Language: Английский

Citations

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