In this work, flower-like ZnIn2S4 was synthesized via a hydrothermal reaction, and then a suspensionof the ZnIn2S4 and commercial graphene oxide (GO) was spray-dried at 200 oC to obtain theZnIn2S4@GO composite material. The ZnIn2S4 was completely wrapped by GO while its originalspherical, flower-like structure was maintained. The GO coating could relieve the mechanical stress ofvolume changes during charge/discharge cycling of ZnIn2S4. Moreover, GO provided an additionalchannel for electron supply, thus improving conductivity and reversible capacity. The nanometric sizeand the binary metal sulfide nature of the ZnIn2S4 particles also contributed to improving theelectrochemical behavior. The ZnIn2S4@GO anode showed excellent cycle performance withdischarge capacity of 476.14 mAh g-1after 200 cycles at a current density of 500 mA g-1. The excellentrate performance and cycling stability, both prove that the ZnIn2S4@GO composite is a highly suitableanode material for lithium ion batteries.
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