Cooperative Design of Magnesium Ions with Cations or Anions in 2D VS<sub>2</sub> Electrodes

Two-dimensional vanadium disulfide (VS<sub>2</sub>) is widely used in electrode materials for aqueous batteries but still suffers from limited capacity and rate. We designed an interlayer reaction based on VS<sub>2</sub> in synergy of Mg<sup>2+</sup> with conventional cations or anions (H<sup>+</sup>, NH<sub>4</sub><sup>+</sup>, OH<sup>-</sup>, NO<sub>3</sub><sup>-</sup>, F<sup>-</sup>, Cl<sup>-</sup>, and SO<sub>4</sub><sup>2-</sup>) (dividing these ions' workings into dual-ion batteries, Mg<sup>2+</sup>-anion co-(de)intercalation, and gap-filling). Relatively more suitable paired ions were recommended for each of the three mechanisms. Furthermore, combined with molecular dynamic simulation and experiments, the effectiveness of Mg<sup>2+</sup>/Cl<sup>-</sup> co-(de)intercalation in enhancing battery performance was verified. This work provides a new dimension for optimizing battery performance.

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Publication Details

Journal
Nano Letters
Published
2025-08-29
DOI
https://doi.org/10.1021/acs.nanolett.5c03419
Primary Topic
Advanced battery technologies research
Type
article
Field-Weighted Citation Impact
0.00

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article

Cooperative Design of Magnesium Ions with Cations or Anions in 2D VS2 Electrodes

Yujie Zheng, Yuting He, Yingfang Li, Qianzhi Gou et al.
Nano Letters
Advanced battery technologies research
article

Cooperative Design of Magnesium Ions with Cations or Anions in 2D VS2 Electrodes

Yujie Zheng, Yuting He, Yingfang Li, Qianzhi Gou, Baihua Qu, Xiaojin Lian, Ziga Luogu, Meng Li, Kaixin Wang
article en

Abstract

Two-dimensional vanadium disulfide (VS<sub>2</sub>) is widely used in electrode materials for aqueous batteries but still suffers from limited capacity and rate. We designed an interlayer reaction based on VS<sub>2</sub> in synergy of Mg<sup>2+</sup> with conventional cations or anions (H<sup>+</sup>, NH<sub>4</sub><sup>+</sup>, OH<sup>-</sup>, NO<sub>3</sub><sup>-</sup>, F<sup>-</sup>, Cl<sup>-</sup>, and SO<sub>4</sub><sup>2-</sup>) (dividing these ions' workings into dual-ion batteries, Mg<sup>2+</sup>-anion co-(de)intercalation, and gap-filling). Relatively more suitable paired ions were recommended for each of the three mechanisms. Furthermore, combined with molecular dynamic simulation and experiments, the effectiveness of Mg<sup>2+</sup>/Cl<sup>-</sup> co-(de)intercalation in enhancing battery performance was verified. This work provides a new dimension for optimizing battery performance.

Nano LettersVol. 25(36)
Xi'an University of Architecture and Technology (CN), Chongqing University (CN), Science and Engineering Services (United States) (US), Shenyang Aluminum & Magnesium Engineering & Research Institute (China) (CN), Energy Storage Systems (United States) (US)
National Natural Science Foundation of China, Natural Science Foundation of Chongqing, National Key Research and Development Program of China
Openalex Percentile: Top 78%
Advanced battery technologies research
DOISourceOpenAlex
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Cooperative Design of Magnesium Ions with Cations or Anions in 2D VS<sub>2</sub> Electrodes — Yujie Zheng, Yuting He, et al. · Nano Letters (2025) | TGRS Research Map | TGRS