Regulating Hybrid Anodes for Efficient Li⁺/Na⁺ Storage

Abstract

Hybrid\narchitectures can effectively integrate the merits of individual\ncomponents to promote the storage properties of lithium and sodium\nions. Herein, a delicate design of Fe₇S₈@NC@MoS₂ with three-dimensional heterostructure is produced via a\nprecise template-engaged strategy by the aid of a metal organic framework\nand followed by covering <i>in situ</i> formed MoS₂ nanosheets. The well-designed anode material shows adjustable voids\nbetween the core Fe₇S₈ and the carbon shell\nto buffer the volume change upon intercalation and deintercalation\nof metal ions. Additionally, the outer MoS₂ layer enhances\nboth electronic conductivity and metal ion transfer, which further\nresults in fast rate performance for both lithium- and sodium-ion\nbatteries.