Synthesis of Cd–Sn–SnO2@C heterocomposite anode with superior electrochemical performance

• Cd–Sn–SnO2@C heterocomposite was synthesized by carbon reduction of CdSnO3 during carbonization of oleic acid.
• Cd–Sn–SnO2@C electrode maintained a discharge capacity of 571.4 mAh g−1 at a current density of 50 mA g−1 after 50 cycles.
• Cd–Sn–SnO2@C heterocomposite exhibited an enhanced electrochemical performance due to the synergistic effect of carbon and cadmium.

The hetero-structures of chemically distinct materials have been regarded as superior anode materials, since they could effectively overcome the large capacity fading due to the characteristics of their structures. Herein, Cd–Sn–SnO2@C heterocomposite has been synthesized by carbon reduction of CdSnO3 during carbonization of oleic acid. Electrochemical results show that the as-obtained Cd–Sn–SnO2@C electrode could maintain a discharge capacity of 571.4 mAh g−1 at a current density of 50 mA g−1 after 50 cycles. It demonstrates that the as-synthesized Cd–Sn–SnO2@C heterocomposite might be a promising anode material for high-performance lithium-ion batteries.