The commercialization of solid-state batteries, in which lithium metal can be used as the anode and a high-voltage storage material as the cathode, is a challenge due to the poor compatibility of the materials or the high resistance boundary layers that form between the components.

In the HIPSTER project, particular attention is being paid to improving the compatibility of key components in solid-state batteries and the production of high-performance, state-of-the-art artificial interface layers. The special feature of this project is the comprehensive comparison between chemically different battery systems in one project. For this purpose, the anode and cathode-side interfaces in different battery systems are prepared, examined and compared. This comparison and benchmarking should result in optimized, highly compatible interfaces that contribute to the improvement of battery technology. The data sets as a whole will be used to evaluate design principles for ideal batteries with minimized interface resistances on the one hand and optimized manufacturing processes on the other.