In the research field of electrochemistry, the scientists examine, among other things, the interfaces between the electrode (electron conductor) and electrolyte (ion conductor), where the battery-specific redox reaction takes place. The focus is on the structure of the interface down to the atomic level in order to understand the electrochemical processes and interactions occurring therein. The aim is to use models to record the processes in real energy storage systems and thus derive improvement approaches for the efficiency and stability of batteries. At the same time, alternatives to conventional lithium are being tested in order to create the basis for the battery type for the next generation and beyond.