Ultrafine nanocrystals SnS2, Confined adherent growth, Hybrid storage mechanism, Li+ batteries, Na+ batteries
Gradient lithiophilic structure, Homogenized electric field strength, dendrite inhibition, COMSOL simulation, Li metal composite anodes
Heterogeneous double-layer hollow spheres, Confinement sacrifice template method, SnO2 hollow spheres, Size controllable, Li+/Na+ batteries