Constructing MoS2/ZnS-NC heterostructures on carbon cloth as anode with enhanced diffusion kinetics for lithium-ion batteries

Abstract

Interface engineering is an effective strategy to optimize the electronic properties of MoS2, yielding significantly improved electrochemical performance of lithium-ion batteries. We have designed carbon cloth (CC) decorated by a MoS2/ZnS-NC heterostructure, where ZnS with N-doped carbon (ZnS-NC) is derived from zeolitic imidazolate framework‐8 (ZIF-8) carbonation. A MoS2/ZnS-NC@CC heterostructure with abundant heterointerfaces, high conductivity, and N heteroatom doping greatly enhances electron/ion diffusion kinetics, thereby improving electrochemical performance. The MoS2/ZnS-NC@CC anode exhibits improved lithium storage capacity due to its structural advantage. Electrochemical measurements reveal that the MoS2/ZnS-NC@CC binder-free electrode delivers an initial discharge capacity of 1427.2 mAh g−1 at a current density of 100 mA g−1 and good cycling stability after 200 cycles.