QUB Scientists Release £74 Iron Flow Battery Design, Undercutting £3,000 Research Cells
Updated
Updated · bbc.co.uk · Jul 20
QUB Scientists Release £74 Iron Flow Battery Design, Undercutting £3,000 Research Cells
3 articles · Updated · bbc.co.uk · Jul 20
Summary
QUB researchers have distributed a 3D-printed iron flow battery design free to labs worldwide, aiming to standardize experiments and speed development of long-duration renewable energy storage.
£74 is the build cost for the roughly 10-part cell, versus £2,000-£3,000 for commercial units that pushed postdoctoral researcher Hugh O'Connor to design his own during his PhD.
Iron replaces vanadium, a costlier material with concentrated global supply, while an "Ikea-style" guide lets other institutions assemble identical cells and compare results more reliably.
QUB and partner universities are already using the printed cell in multi-institution studies and are now testing larger stacks to see how the approach could scale from lab work to industry.
Flow batteries are seen as important for storing wind and solar power when generation dips, a need growing as renewables supplied more global electricity than coal last year.
Could a university's free, 3D-printed battery design truly disrupt the multi-billion-dollar energy storage industry?
With China also advancing iron batteries, can an open-source model win the global race for grid-scale energy storage?
Will a free DIY battery fix science's replication crisis, or does real-world impact require commercial investment and control?
Affordable Iron Flow Batteries Go Open Source: QUB’s 2026 Breakthrough Democratizes Renewable Energy Storage Research
Overview
In early 2026, Queen's University Belfast (QUB) announced a breakthrough in iron flow battery technology, making these batteries much more affordable and accessible. Historically, high costs and complex equipment made it difficult for researchers to enter the field, but QUB’s innovation dramatically lowers these barriers. As a result, more scientific groups worldwide can now participate in developing and testing new battery materials and chemistries. This open and collaborative approach is expected to speed up advancements and encourage the wider adoption of flow battery systems, supporting a more sustainable energy future.