3D flower-like hierarchitectures constructed by SnS/SnS 2 heterostructure nanosheets for high-performance anode material in lithium-ion batteries

Sn chalcogenides, including SnS, Sn2S3, and SnS2, have been extensively studied as anode materials for lithium batteries. In order to obtain one kind of high capacity, long cycle life lithium batteries anode materials, three-dimensional (3D) flowerlike hierarchitectures constructed by SnS/SnS2 heterostructure nanosheets with thickness of ∼20nm have been synthesized via a simple one-pot solvothermal method. The obtained samples exhibit excellent electrochemical performance as anode for Li-ion batteries (LIBs), which deliver a first discharge capacity of 1277 mAhg-1 and remain a reversible capacity up to 500 mAhg-1 after 50 cycles at a current of 100 mAhg-1.