A one-pot in situ pyrrole polymerization strategy, followed by controllable atomic layer deposition of TiO2 and pyrolysis process, is carried out to construct the core-shell SnO2/NC@TiO2 with sub-5 nm SnO2 nanoparticles uniformly dispersing in interconnected nitrogen-doped carbon nanospheres coated by TiO2 layer. Benefiting from the unique structural stability of SnO2/NC@TiO2, as anode materials for LIBs, they show much improved cycling stability and rate capability compared with the bare SnO2 and SnO2/NC electrodes. Specifically, the SnO2/NC@TiO2 electrode with a 10 nm TiO2 coating layer demo...
