Vertically oriented MoS2 nanoflakes coated on 3D carbon nanotubes for next generation Li-ion batteries

Mumukshu D Patel; Eunho Cha; Nitin Choudhary; Chiwon Kang; Wonki Lee; Jun Yeon Hwang; Wonbong Choi

doi:10.1088/0957-4484/27/49/495401

Vertically oriented MoS₂ nanoflakes coated on 3D carbon nanotubes for next generation Li-ion batteries

Nanotechnology. 2016 Dec 9;27(49):495401. doi: 10.1088/0957-4484/27/49/495401. Epub 2016 Nov 9.

Authors

Mumukshu D Patel¹, Eunho Cha, Nitin Choudhary, Chiwon Kang, Wonki Lee, Jun Yeon Hwang, Wonbong Choi

Affiliation

¹ Department of Materials Science and Engineering, University of North Texas, Denton, TX 76207, USA.

PMID: 27827350
DOI: 10.1088/0957-4484/27/49/495401

Abstract

The advent of advanced electrode materials has led to performance enhancement of traditional lithium ion batteries (LIBs). We present novel binder-free MoS₂ coated three-dimensional carbon nanotubes (3D CNTs) as an anode in LIBs. Scanning transmission electron microscopy analysis shows that vertically oriented MoS₂ nanoflakes are strongly bonded to CNTs, which provide a high surface area and active electrochemical sites, and enhanced ion conductivity at the interface. The electrochemical performance shows a very high areal capacity of ~1.65 mAh cm^-2 with an areal density of ~0.35 mg cm^-2 at 0.5 C rate and coulombic efficiency of ~99% up to 50 cycles. The unique architecture of 3D CNTs-MoS₂ is indicative to be a promising anode for next generation Li-ion batteries with high capacity and long cycle life.