In-situ grown hierarchical MoS2 nanoflakes on three-dimensional carbon fiber papers as free-standing anodes for lithium-ion battery

Abstract

Owing to the high capacity of MoS2, it's considered to be a next-generation lithium ion batteries (LIB) anode material. However, the weak electron transfer limits its application. Herein, hierarchical MoS2@CFP composite materials based on in-situ grown hierarchical MoS2 nanoflakes on three-dimensional carbon fiber paper (CFP) is prepared. The hierarchical MoS2/CFP composites serve as self-supporting electrodes and show potential for improved battery performance. The 1st discharge capacity reached 1332 mAh/g and still reached 703 mAh/g after 100 cycles at a current density of 0.1 A/g. The superior performance of the MoS2@CFP composites was mainly attributed to the combination of a high capacity ability of MoS2 and the high electron transport capability of carbon fibers. In addition, this synthetic strategy provides a certain idea for the synthesis of other layered composite materials.