Improve electrochemical performances of SnS2/C by destroying the crystal structure

SnS 2 -based materials are potential anodes of sodium ion batteries (SIBs) due to their high specific capacity, high theoretical coulombic efficiency, and low toxic. Herein, we demonstrate an effectual strategy to improve the integral electrochemical performances of SnS 2 /C by decreasing crystallinity; the Na ions diffuse coefficient, reversible capacity, and rate capacity were increased by a large margin. At 100 mA g −1 , un-milled SnS 2 /C, direct-milled SnS 2 /C, and SnS 2 /C milled with NaCl were delivered about 311, 384, and 509 mAh g −1 at 100th cycle, and at 500 mA g −1 , the capacity vanish ratio in corresponding SnS 2 /C were 0.414%, 0.552%, and 0.292% per cycle from 2nd to 100th cycle. It is expected that the simple synthesize method may provide some inspiration to SnS 2 -based anode research.