Hollow Zn2SnO4 boxes coated with N-doped carbon for advanced lithium-ion batteries

Hollow Zn2SnO4@N–C composites were synthesized after the calcined process of precursor. The N-doped carbon coating layers, as a physical buffering matrix to reinforce the hollow structure, prevent interparticle agglomeration and improve the electronic conductivity of the electrodes. Compared with our previous studies, Zn2SnO4@N–C composites show an enhanced electrochemical performance (616 mA h g−1 after 45 cycles) and high rate capability. With rational and delicate design, this kind of composites may be the potential anode materials for lithium-ion batteries.