The proposed LTP shall enable us to link tightly high-resolution 3D imaging at ID16B with processing to establish more enhanced all solid-state batteries (ASSB). In particular we would like to focus within this LTP on the (1) development of sophisticated design guidelines for ceramic electrolyte blends (Argoyrodites, Nasicons, Garnets, Anti-Perovskites) thereby imaging the architectured 3D morphology in correlation with chemical information for various processing parameters down to 50 nm, (2) improvement of ceramic cathode composites e.g. NCM/LATP or LCM/Argyrodite systems using high resolution 3D morphology characterization in correlation with chemical information down to a resolution of 50 nm, and (3) development of an in-situ setup to witness in a novel ASSB system (composite cathode/ceramic electrolyte blend) the dynamical evolution of the morphology and degradation with cycling. The LTP shall provide the necessary continuous access for high resolution nano-tomography at ID16B.