Facile synthesis and electrochemical performances of activated bamboo charcoal supported MoS2 nanoflakes as anodes materials for lithium-ion batteries

Abstract Bamboo charcoal (BC) has a natural hierarchical porous three-dimensional network structure and good electrical conductivity. Herein, MoS 2 nanoflakes supported by modified bamboo charcoal (MBC) have been prepared via a facile hydrothermal method using ammonium molybdate. SEM observations show that appropriate MoS 2 nanoflakes are uniformly dispersed on the porous MBC. In addition, the hybrids exhibit good lithium storage property as anode materials for lithium ion batteries. The optimal MoS 2 /MBC (MS-2) composite delivers a high initial capacity of 1867 mAh g −1 at the current density of 200 mA g −1 , along with a stable reversible capacity of 672 mAh g −1 during 200 cycles and the impressive high-rate capacity of 581 mAh g −1 even at a higher current density of 1600 mA g −1 . The superior electrochemical performances of MoS 2 /MBC composites can be attributed to the synergistic effects between MoS 2 nanosheets and the hierarchical porous structure of MBC, which buffers the volume change of materials, enhances the conductivity of composites and transmission of electrolyte.