Antimony Trisulfide with Graphene Oxide Coated Titania Nanotube Arrays as Anode Material for Lithium-ion Batteries

Abstract

The performance of the Lithium Ion Batteries (LiBs) is significantly influenced with the synergetic chemical properties of two different materials in a composite form. The specific capacity of both titanium dioxide arrays (TNAs) and Antimony trisulfide (Sb2S3) bottleneck the performance of LiB due to the low conductivity after the implantation as anode material. Herein, a novel multifunctional composite composed of highly dispersed Sb2S3 on freestanding tubular TNAs host via chemical bath deposition method (CBD) for use as anode material in lithium-ion batteries (LIBs). The loading quantity of Sb2S3 with reduced graphene oxide (rGO) was regulated to achieve adjustable outcomes. The composite anode consisting of TNAs/ Sb2S3/G in lithium-ion batteries (LIBs) has a specific capacity that is three times greater than conventional anodes. Furthermore, this composite anode maintains stable cyclic performance even after undergoing 300 cycles. The initial coulombic efficiency of the composite electrode is 100%, whereas the bare TNAs had a coulombic efficiency of 45%. The cycle performance analysis demonstrated that the TNAs/ Sb2S3/G composite has superior specific capacity and efficiency, even under high current density conditions of 500 µA/cm2. The rate performance is greatly improved, indicating the efficacy of this innovative composite anode material for high-performance LIBs.