Advances in MoS2 based Hollow Structural Materials for High‐Performance Metal‐Ion Batteries

The design of MoS₂ based electrode materials with different dimension structure for metal ion battery could promote more active sites and shorten diffusion path of ion, constrain the stack of 2D MoS₂ and relieve volume expansion, which provides a constructive suggestion for synthesizing hollow materials with excellent electrochemical performance.

Abstract

The construction of a hollow structure could promote the diffusion of electrons and ions to improve the electrochemical performance of MoS₂ based materials for metal-ion batteries. Herein, we summarize the preparation technique of MoS₂ hollow structural materials with different dimensions. The approaches to construct 0D hollow MoS₂ materials for electrodes of metal-ion batteries can be divided into the hard template approach, soft template approach, self-template approach, and template-free approach. Among them, the hard template approach and self-sacrifice template approach are controllable but complicated, the soft template approach and template-free approach are simple and scalable but not controllable. Furthermore, as the electrode material of metal-ion batteries including lithium-ion battery, sodium-ion battery, potassium-ion battery or magnesium-ion battery, the 0D hollow structural MoS₂ based materials could improve the diffusion kinetics of ion and electron and restrict the stack of MoS₂. Furthermore, the 1D hollow MoS₂ can provide oriented electron diffusion along with the axial direction, and the 3D hollow MoS₂ can offer perforative pores for permeation of electrolytes and more active sites, which results in excellent rate capability and cycling stability. This paper could give inspiration for constructing MoS₂ hollow structural materials with different dimensions and provide a constructive suggestion for synthesizing hollow materials with excellent electrochemical performance.

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