Polyaniline(PANI) coated Zn₂SnO₄ cube as anode materials for lithium batteries

Zn₂SnO₄@PANI composites were synthesized via a micro emulsion polymerization method. The outer surfaces of monodispersed cubes are covered with amorphous aggregated PANI. The addition of PANI can create a buffering structure for Zn₂SnO₄ cubes. Compared with Zn₂SnO₄ cubes, Zn₂SnO₄@PANI composites show an improved electrochemical performance (491.0 mAh g ^-1 at a current density of 600 mAg^-1 after 50 cycles). It is believed that PANI coating is a simple and effective way to improve the cycling performance for lithium batteries.