A novel anode Sn/g-C3N4 composite for lithium-ion batteries

[Display omitted] •Sn/g-C3N4 composite was prepared using a simple chemical reduction method.•The cycling performance of the Sn/g-C3N4 composite anode was significantly improved compared to pure Sn.•The presence of g-C3N4 support as a buffer material led to an enhancement in mechanical strength for the composite anode. In this work, the Sn/g-C3N4 composite was successfully synthesized via a facile chemical reduction method, in which Sn nanoparticles dispersed well on the porous framework of g-C3N4. The composite is used as anode material for Lithium-ion battery, which exhibits significantly improved cycling performance compared to the pure Sn.This result is due to the significant contribution of the g-C3N4 support in preventing volume change during lithiation/delithiation process of Sn.