MoS2/graphene nanosheet composites prepared by xylitol-assisted ball milling as high-performance anode materials for lithium-ion batteries

Nano-MoS 2 and MoS 2 /graphene nanocomposites are prepared by a simple xylitol auxiliary ball milling method. Xylitol can increase the shear force in the ball milling process and overcome the interlayer van der Waals force between MoS 2 and the graphite layer, thus improving the efficiency of preparing nanomaterials by ball milling method. As a result, the MoS 2 /graphene hybrid nanosheets exhibit higher discharge capacity and better cycle stability as lithium-ion anode materials. When the original addition amount of MoS 2 and graphite is 1:1, the materials have the best electrochemical behaviors. The initial discharge capacity is as high as 1014 mAh·g −1 at a current density of 50 mA·g −1 , after 300 cycles at a current density of 250 mA·g −1 , the capacity remains at 664 mAh·g −1 without decay. Therefore, the xylitol auxiliary ball milling method is suitable for the scalable preparation of new transition metal sulfide (TMDS)-based anodes for lithium-ion batteries.