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S²taR
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S²taR

S²taR – Development of All-Solid-State Battery Recycling Processes

Founded by: BMBF

Contact partners : Marco Ahuis, Dr. rer. nat. Peter Michalowski

Summary of the overall project:

The project “S²taR – Development of All-Solid-State Battery Recycling Processes” is funded by the German Federal Ministry of Education and Research (BMBF) as part of the competence cluster “Recycling/Green Battery” within the umbrella concept “Research Factory Battery”.
The project investigates and evaluates the recyclability of already promising solid-state batteries (“All Solid-State Batteries” (ASSBs)). In particular, recycling technologies that have been established in the processing of conventional lithium-ion batteries are to be transferred and further developed. In addition to pyrometallurgical and hydrometallurgical process approaches, mechanical and thermal processing methods are to be considered in particular. By developing holistic process chains for the three different types of solid-state batteries (sulfide, oxide and polymer-based), emerging questions regarding the recyclability and sustainability of innovative ASSBs can be answered even before these batteries reach market maturity.
Due to the still low level of technical realization, the opportunity arises to incorporate the knowledge gained from the project into an optimized, sustainable “design for recycling” and thus to influence the cell and module design of solid-state batteries in the long term. The implementation of efficient recycling processes and best possible construction methods in the battery life cycle will enable the establishment of a closed battery value chain within Germany and strengthen the competitiveness of Germany as a business location.

Goals and tasks of the iPAT

  • Production of polymer-based solid-state batteries for the investigation of recyclability
  • Development of mechanical treatment process chains for the different solid electrolyte classes
  • Material and energetic characterization of the mechanical and thermal processes
  • Economic and ecological evaluation of the individual process steps and assessment of the entire value chain

 
Project partners

Fraunhofer Institute for Surface Engineering and Thin Films (IST), Braunschweig (project coordinator)
Institute for Process Metallurgy and Metal Recycling (IME), RWTH Aachen University
Institute for Energy and Climate Research: Materials Synthesis and Processing (IEK-1), Forschungszentrum Jülich
Institute of Mineral and Waste Processing, Waste Disposal and Geomechanics (IFAD), TU Clausthal
Institute of Machine Tools and Production Technology (IWF), TU Braunschweig

 
Projektpartner

Fraunhofer-Institut für Schicht- und Oberflächentechnik (IST), Braunschweig (Projektkoordinator)
Institut für Metallurgische Prozesstechnik und Metallrecycling (IME), RWTH Aachen
Institut für Energie- und Klimaforschung: Werkstoffsynthese und Herstellungsverfahren, Forschungszentrum Jülich
Institut für Aufbereitung, Deponietechnik und Geomechanik (IFAD), TU Clausthal
Institut für Werkzeugmaschinen und Fertigungstechnik (IWF), TU Braunschweig

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