Uncovering the interactions and potentials of magnesium and boron nitride nanostructures for magnesium-ion batteries

Abstract

In present research paper, relationships between a magnesium atom and a magnesium ion (Mg2+) were examined with four different nanostructures: a boron nitride nanotube and a boron nitride nanocone. Our goal was to determine cell voltage (V) values for Mg-ion batteries (MIBs). We conducted calculations employing ωB97XD level of theory and 6-31G(d) basis set to analyze total energy, optimize the geometry, and examine the frontier molecular orbitals. The DFT calculations provided clarification regarding the energy adsorption changes (Ead) between the Mg2+ ion and nanostructures, indicating that the order of Ead is BN tube > BN cone. However, the nanocone exhibits the highest Vcell value, and alterations in Vcell for Mg-ion batteries follow order of BN cone > BN tube. Present research provides theoretical insights into the potential of magnesium as an anode material in batteries, highlighting its favorable Vcell.