| abstract |
The invention belongs to the technical field of secondary battery electrode materials, and in particular relates to a MOF-derived core-shell structure lithium ion battery negative electrode material and a preparation method. The invention provides a preparation method of MOF (metal organic framework) derived core-shell structure MoS 2 @Fe 2 O 3 -C lithium ion battery negative electrode material, which uses iron-based MOF derivative Fe 2 O 3 -C as the core substrate material, The in-situ growth of MoS2 nanoshells on its surface forms a heterostructure. While improving the conductivity, the MOF precursor framework structure inherited by the core material can also adjust the volume change of the electrode material during charging and discharging, while also increasing the Lithium intercalation active site. The electrode material prepared by the invention simultaneously improves the conductivity, structural stability and electrochemical activity of MoS2, and the overall preparation process has the advantages of low cost, simple operation, environmental friendliness and the like. |