The research work of the Fraunhofer Institute for Material and Beam Technology IWS focuses on a solid-state cell architecture with reduced electrolyte content, which enables higher energy densities with improved cycle stability. The work is being carried out as part of the AnSiLiS project, funded by the German Federal Ministry of Research, Technology and Space, and TALISSMAN, funded by the EU's Horizon Europe program. The aim is to develop a practical solid-state cell that achieves more than 600 Wh/kg - twice as much as today's lithium-ion batteries.
From material development to industrial scaling
In the AnSiLiS project, TU Dresden, the University of Jena and the Helmholtz-Zentrum Berlin are working with the IWS to develop a sulfur-carbon composite cathode and ultra-thin lithium metal anodes. Molecular dynamic simulations support the evaluation of electrochemical stability. The EU project TALISSMAN complements this basic research with industrial scaling. Nine partners from four countries are developing cell generations with energy densities of up to 550 Wh/kg and non-combustible quasi-solid electrolytes. At the same time, production costs are to be reduced to less than 75 euros per kilowatt hour. The DRYtraec process developed by the Fraunhofer IWS plays a key role. This solvent-free dry coating process reduces energy requirements by up to 30%, avoids emissions and is transferable to industrial production.
Fields of application in aviation and mobility
Applications are expected primarily in aviation, drone technology and electromobility, where the ratio of weight to performance is crucial. Functional prototypes are to be developed in the coming years in preparation for the practical use of the new cell generation.