SiO 2 @SnO 2 /graphene composite with a coating and hierarchical structure as high performance anode material for lithium ion battery

In order to ease the agglomeration and huge volume change of SnO2 particles, SnO2 nanoparticles were usually anchored on reduced graphene oxide (rGO) and used as anode materials for lithium ion batteries. Unfortunately, graphene sheets tended to overlap with adjacent ones and SnO2 nanoparticles still suffered from agglomeration and huge volume changes to some extent. In this paper, a composite SiO2@SnO2/rGO with coating and hierarchical...