Video Redox flow batteries: A step toward the mass market

Joseph von Fraunhofer Prize 2021

80 percent lighter, only half the size and much more cost-effective. Thanks to their invention, redox flow batteries have moved an important step closer to the mass market: Prof. Christian Doetsch, Lukas Kopietz and Dr. Thorsten Seipp (from left to right).

Redox flow batteries are perfect for storing large quantities of renewable energy, but they have always been too expensive for the mass market. Researchers at the Fraunhofer Institute for Environmental, Safety and Energy Technology UMSICHT have now completely redesigned the heart of a redox flow battery — the stack — and have brought about a massive reduction in material usage and costs. Their efforts have earned them the Joseph von Fraunhofer Prize.