Synthesis of Cd₂SnO₄-SnO₂ hybrid micro-cubes with enhanced electrochemical performance for lithium-ion batteries

Novel Cd₂SnO₄-SnO₂ hybrid micro-cubes assembled from fine nanoparticles were successfully prepared through a facile hydrothermal method followed by thermal treatment. The NH₄F used in our experiment plays an important role in the formation of the Cd ₂SnO₄-SnO₂ micro-cubes. When configured as an anode material for lithium-ion batteries (LIBs), the micro-cubic Cd ₂SnO₄-SnO₂ hybrid exhibited an enhanced reversible capacity of 523.4 mAh g^-1 at 100 mA g^-1 after 25 cycles compared to pristine Cd₂SnO₄ and SnO ₂. These results indicate that this hybrid can be a promising anode candidate for LIBs. The improved electrochemical performance of the Cd ₂SnO₄-SnO₂ hybrid may in general be attributed to the synergetic effect of the small diffusion length in the nanoparticle building blocks as well as the hybrid structural features.