Designed synthesis of SnO2@C yolk-shell spheres for high-performance lithium storage

This paper reports the synthesis of novel SnO2@C yolk-shell spheres by using Sn spheres as sacrificial templates. When tested as a potential anode for lithium-ion batteries (LIBs), the SnO2@C yolk-shell spheres demonstrate higher capacities, improved cycling stability, and higher rate capability owing to the unique structural characteristics. The enhanced lithium storage capabilities of SnO2@C yolk-shell spheres make it an ideal anode candidate for advanced LIBs with long cycle life, high energy and power densities.