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 Cd2SnO4–SnO2 micro-cubes. When configured as an anode material for lithium-ion batteries (LIBs), the micro-cubic Cd2SnO4–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 SnO2. These results indicate that this hybrid can be a promising anode candidate for LIBs. The improved electrochemical performance of the Cd2SnO4–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.