As part of the SIB:DE consortium, the Aachen-based company Cylib is participating in the development of an industrial recycling process for sodium-ion batteries. Twenty-five partners from industry and research are working on the project, including VARTA, EDAG, and several Fraunhofer Institutes. Funded by the Federal Ministry of Research, Technology, and Space, the project is scheduled to run until early 2029.
The project aims to develop large-format sodium-ion cells, while simultaneously investigating their recyclability. The aim is to lay the groundwork for industrial production before significant quantities of used batteries become available. EDAG Production Solutions coordinates the project activities. Cylib, in collaboration with the Technical University of Braunschweig, is leading the recycling activities.
Focus on two recycling pathways
Specifically, two different pathways are being examined. One is based on established mechanical and hydrometallurgical processes. The second approach, known as direct recycling, involves reusing active materials without complete chemical processing. According to the project description, this approach could reduce costs and preserve material properties, particularly for production waste. A pilot demonstration is planned for 2029.
cylib states that it is pursuing a strategy of building up recycling capacities at an early stage. The company is planning an industrial facility at CHEMPARK Dormagen with an annual processing capacity of up to 60,000 tons. The company has implemented a similar approach for lithium-ion batteries and raised over 140 million euros for this purpose.
