Chinese Hydrangea Lantern-like Co9S8@MoS2 Composites with Enhanced Lithium ion Battery Properties
Chinese hydrangea lantern-like Co9S8@MoS2 composites are prepared by a facile solvothermal method. Ultra-thin MoS2 nanosheets as the shell tightly and uniformly grow on the surface of the Co9S8 core. Due to its unique hierarchical core-shell structure and novel morphology, the composites show excellent electrochemical performance as the anode material of lithium ion batteries. It can deliver reversible discharge capacities around 1298, 1150, 1089, 1018 and 941 mAh g-1 at current densities of 0.1, 0.5, 1, 1.5 and 2.0 A g-1, respectively. Moreover, Co9S8@MoS2 composites can still maintain a discharge capacity of 1048 mAh g-1 after 300 cycles at current density of 1.0 A g-1.