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.