Joseph von Fraunhofer Prize 2021

Redox flow batteries: A step toward the mass market

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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).

©  Foto: Fraunhofer
 

Winners of the Joseph von Fraunhofer Prize 2021:

Prof. Christian Doetsch and Lukas Kopietz (Fraunhofer Institute for Environmental, Safety and Energy Technology UMSICHT) 
Dr. Thorsten Seipp (Volterion GmbH)

 

Redox flow batteries: A step toward the mass market

Redox flow batteries are perfect for storing large quantities of regenerative 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.


Christian Doetsch and Lukas Kopietz from Fraunhofer UMSICHT and Dr. Thorsten Seipp from Volterion GmbH have been awarded the Joseph von Fraunhofer Prize for this development. Explaining the reasons for its decision, the jury mentioned “the spin-off and its successful exit from Fraunhofer, which serves as a prototype for marketing new manufacturing technologies.”