Volume 125, Issue 12 e70070
RESEARCH ARTICLE

HfSe2 Monolayer as a Two-Dimensional Anode Material for Magnesium-Ion Batteries: First-Principles Study

Ning Liu

Corresponding Author

Ning Liu

Zhengzhou Railway Vocational Technical College, Zhengzhou, China

Correspondence: Ning Liu ([email protected])

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Xiaokun Li

Xiaokun Li

Zhengzhou Railway Vocational Technical College, Zhengzhou, China

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First published: 10 June 2025

Funding: This work was supported by Key Science and Technology Program of Henan Province (grant no. 242102210171).

ABSTRACT

The advancement of magnesium ion batteries necessitates the exploration of novel high-capacity anode materials. This research examines the viability of HfSe2 monolayers as a potential anode material for magnesium ion batteries, utilizing first-principles calculations. The findings indicate that HfSe2 demonstrates substantial electrical conductivity as an electrode material, with its electronic conductivity remaining unaffected by applied strain. Additionally, a low diffusion barrier of 0.071 eV contributes to its high rate performance. Notably, HfSe2 possesses a significant theoretical capacity of 480.735 mAh/g, accompanied by a relatively low open circuit voltage of 0.203 V. These results provide insights into the magnesium storage mechanism of HfSe2 monolayers and inform the design of magnesium ion batteries.

Conflicts of Interest

The authors declare no conflicts of interest.

Data Availability Statement

Data will be made available on request.

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