| Title: |
Integrating Flow Field Geometries within Porous Electrode Architectures for Enhanced Flow Battery Performance |
| Authors: |
Liu, Baichen; Jacquemond, Rémy Richard; Muñoz-Perales, Vanesa; Buzzi, Simona; Hjelm, Johan; Forner-Cuenca, Antoni |
| Source: |
Liu, B, Jacquemond, R R, Muñoz-Perales, V, Buzzi, S, Hjelm, J & Forner-Cuenca, A 2026, 'Integrating Flow Field Geometries within Porous Electrode Architectures for Enhanced Flow Battery Performance', Small, vol. 22, no. 1, e11327. https://doi.org/10.1002/smll.202511327 |
| Publication Year: |
2026 |
| Subject Terms: |
electrochemical energy storage; flow field designs; mass transport; non-solvent induced phase separation; porous electrodes; redox flow batteries; /dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy; name=SDG 7 - Affordable and Clean Energy |
| Description: |
The large-scale adoption of renewable energy demands efficient and cost-effective storage solutions, with redox flow batteries (RFBs) emerging as promising candidates for grid-scale applications. However, their deployment remains constrained by high capital costs, largely driven by the need for advanced porous electrodes that balance high surface area, efficient mass transport, and low-pressure drop. Compared to conventional, carbon-fiber-based porous electrodes, non-solvent induced phase separation (NIPS) offers a versatile manufacturing approach to tailor electrode microstructures and enhance electrochemical performance, yet optimizing mass transport remains a key challenge. Here, a micro-patterning strategy is introduced that directly integrates flow field architectures into the electrode structure during NIPS fabrication as a potentially scalable manufacturing approach. Inspired by flow field designs used in fuel cells and flow batteries, we imprint groove and pillar micro-patterns to enhance in-plane and through-plane mass transport. Using symmetric iron flow cells and all-vanadium full cells, pillar-patterned electrodes, combined with an interdigitated flow field, are shown to significantly reduce mass transfer resistance and improve electrochemical performance while maintaining a low-pressure drop. This work presents a simple, scalable, and cost-effective electrode design strategy to boost RFB power density and advance the economic viability of redox flow battery technology. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
English |
| ISSN: |
1613-6810; 1613-6829 |
| Relation: |
info:eu-repo/semantics/altIdentifier/pmid/41134130; info:eu-repo/semantics/altIdentifier/pissn/1613-6810; info:eu-repo/semantics/altIdentifier/eissn/1613-6829 |
| DOI: |
10.1002/smll.202511327 |
| Availability: |
https://research.tue.nl/en/publications/db644652-8f07-4221-bb8a-9a031a960d68; https://doi.org/10.1002/smll.202511327; https://pure.tue.nl/ws/files/376332506/Small_-_2025_-_Liu_-_Integrating_Flow_Field_Geometries_within_Porous_Electrode_Architectures_for_Enhanced_Flow_Battery.pdf; https://www.scopus.com/pages/publications/105019710737 |
| Rights: |
info:eu-repo/semantics/openAccess ; http://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.2BA987F8 |
| Database: |
BASE |