HIGREEW (Affordable High-performance Green REdox floW batteries) designed, developed and validated an advanced redox flow battery based on a water-soluble, low-cost organic electrolyte, combined with an optimised low-resistance membrane and fast electrode kinetics, for high energy density and long service life.
The project showed that aqueous organic flow batteries can be an alternative for large-scale stationary energy storage, in line with the European Green Deal and the SET-Plan goals for low-cost, long-life storage.
Results
- A robust, highly soluble aqueous organic electrolyte with long-term stability, selective membranes and modified carbon electrodes with enhanced kinetics.
- A low-cost stack concept for aqueous organic flow batteries, developed, built and validated.
- A battery prototype with its own power conversion, battery management system and balance of plant.
- Integration and demonstration of the prototype at Siemens Gamesa's hybrid renewable plant in La Plana, Spain, including safety studies (HAZOP and SWIFT).
Pinflow's Role
Pinflow took part as a beneficiary and worked with stack engineering partner C-Tech Innovation to optimise the active components at laboratory scale and the battery stack design.
Consortium
The project was coordinated by CIC energiGUNE (Spain) and brought together research centres, universities and industry from Spain, the Czech Republic, France, Germany, the Netherlands and the United Kingdom, including the University of West Bohemia, CNRS, Fraunhofer, Siemens Gamesa and Gamesa Electric. Learn more at higreew-project.eu.