Constructing unique and highly stable structures with plenty of electroactive sites in sodium storage materials is a key factor for achieving improved electrochemical properties through favorable sodium ion diffusion kinetics.An SnS2@carbon hollow nanospheres (SnS2@C) has been designed and fabricated via a facile solvothermal route,followed by an annealing treatment.The SnS2@C hybrid possesses an ideal hollow structure,rich active sites,a large electrode/electrolyte interface,a shortened ion transport pathway,and,importantly,a buffer space for volume change,generated from the repeated insertion/extraction of sodium ions.These merits lead to the significant reinforcement of structural integrity during electrochemical reactions and the improvement in sodium storage properties,with a high specific reversible capacity of 626.8 mAh g-1 after 200 cycles at a current density of 0.2 A g-1 and superior high-rate performance (304.4 mAh g-1 at 5 A g-1).