A facile and universal route has been developed to synthesize metal oxides-based yolk-shelled structures with controllable void size. Based on this approach, a yolk-shelled SnO 2 @N dopped C (yolk-shelled SnO 2 @NxC) composite has been successfully synthesized for lithium-ion battery electrodes....

Metallic tin has been considered as one of the promising anode candidates for next-generation lithium-ion batteries. However, its poor cycling stability due to the severe volume expansion upon lithiation hinders its further application. Here we propose a shell-to-yolks evolution strategy to...