Preparation of SnS2/enteromorpha prolifera derived carbon composite and its performance of sodium-ion batteries

SnS 2 has aroused great interests for application of sodium-ion batteries, because of its graphene-like structure and high theoretical capacity. Herein, we present an effective nanocasting strategy to fabricate the SnS 2 / enteromorpha prolifera derived carbon (SnS 2 /EPC) composite, whose microstructure anchors the SnS 2 nanosheets on enteromorpha prolifera (EP) derived carbon. It can effectively solve the problems of poor conductivity and volume expansion of SnS 2 electrode during charging and discharging process. The optimized SnS 2 /EPC could deliver high reversible capacity of 443 mA h g −1 at 0.1 A g −1 , and maintain reversible capacity of 340 mA h g −1 at high rate of 2 A g −1 after 450 cycles, indicating that SnS 2 /EPC is a promising anode material for sodium storage.