Whether in connection with new energies or e-mobility, the storage of energy is of vital significance. In the LOEWE research cluster STORE-E chemistry, physics and materials science experts are conducting fundamental research in the field of chemical and electrochemical storage, with a view to enabling urgently needed new technologies. In cooperation with partners from the business sector, their aim is to explore what is needed to produce new, higher-performance batteries, storage catalytic converters and supercapacitors. The main focus is on the electrochemistry of solid materials and the development of new methods and materials. Particular attention is paid to the role played by inner interfaces.