Abstract
Molybdenum disulfide (MoS 2 ) is a promising anode material in lithium ion batterys (LIBs). However, poor conductivity and stability severely hinder its application. Herein, carbon nitride nanotubes are used as template to in-situ grow ultrathin MoS 2 nanosheets and after removing carbon nitride nanotubes, MoS 2 nanosheets with an uniform tube-like structure can be obtained. Benefiting from hollow structure with long aspect ratio and well-dispersed ultrathin MoS 2 layers, the obtained MoS 2 nanotubes favor mass diffusion, shorten ion transfer distance and can effectively alleviate volume expansion. The obtained MoS 2 nanotubes deliver a reversible capacity of 1112.3 mAh g −1 (0.5 A g −1 after 500 cycles), a good long cycling life (428 mAh g −1 at 2 A g −1 after 1000 cycles). For the MoS 2 -NT//LiCoO 2 full cell, it exhibits stable cycling performance with discharge capacity of 143 mAh g −1 at 0.1 A g −1 after 100 cycles. The specific architecture of MoS 2 nanotubes could provide a useful design idea for the electrode of next-generation LIBs. • MoS 2 nanotube was successfully developed by a facile template method. • The nanotube structure of MoS 2 alleviates the volume changes. • MoS 2 with a high aspect ratio gives continuous electronic transmission channel. • MoS 2 nanotube exhibits an excellent cycle performance and rate capability.
Published Version
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