S-functionalized 2D V2B as a promising anode material for rechargeable lithium ion batteries

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

1 Scopus Citations
View graph of relations

Detail(s)

Original languageEnglish
Pages (from-to)4015-4024
Journal / PublicationPhysical Chemistry Chemical Physics
Volume25
Issue number5
Online published27 Dec 2022
Publication statusPublished - 7 Feb 2023

Link(s)

Abstract

The development of novel high specific capacity anode materials is urgently needed for rechargeable metal ion batteries. Herein, S-functionalized V2B as the electrode material for Li/Na/K ion batteries are comprehensively investigated using first-principles calculations. Specifically, V2BS2 was verified with good electrical conductivity via band structure and density of states calculations. Phonon dispersion and ab initio molecular dynamic simulations were performed and confirmed the dynamic and thermal stability of V2BS2. The use of V2BS2 with a high theoretical specific capacity of 606 mA h g-1 for lithium ion batteries (LIBs) due to the bilayer adsorption of Li atoms is encouraging, which is attributed to the double empty orbitals of the S atoms and small lattice mismatch (1.5%) between the Li layers and substrate. Furthermore, dendrite formation would be well prohibited and safety issues for battery operation would be ensured for V2BS2 as electrode materials because of the low open circuit voltage with 0.37 V. The high charge/discharge rate for LIBs is also achievable owing to the high mobility of adatoms on the surface of V2BS2. Our work not only finds use as a promising material for the field of energy storage, but also provides constructive design strategies for developing high performance anode materials for rechargeable metal ion batteries.

Research Area(s)

  • CAPACITY ELECTRODE MATERIAL, TOTAL-ENERGY CALCULATIONS, AB-INITIO, LI-ION, MONOLAYER, NA, MXENE, INTERCALATION, VOLTAGE, POINTS

Download Statistics

No data available