{"title":"Theoretical design of Zr2B as a universal electrode for multivalent (Li, Na, K, Mg, Ca) ion batteries","authors":"Ming-Liang Qin , Cheng-Wei Lv , Yu-Pu He, Shao-Yi Wu, Qin-Sheng Zhu","doi":"10.1016/j.physe.2025.116375","DOIUrl":null,"url":null,"abstract":"<div><div>Rechargeable metal-ion batteries demand advanced anode materials that simultaneously offer high storage capacity, rapid ion transport, and structural robustness. This study conducts first-principles computation using density functional theory (DFT) to systematically estimate the promising of a two-dimensional (2D) Zr<sub>2</sub>B monolayer as an anode material for Li, Na, K, Mg and Ca-ion batteries (LIBs, NIBs, KIBs, MIBs and CIBs). The results indicate that Zr<sub>2</sub>B exhibits outstanding mechanical integrity, thermal and kinetic stability, and metallic conductivity favorable for efficient electron transport. Remarkably, the migration barriers of alkali metal ions (Li, Na, and K) on the Zr<sub>2</sub>B surface are exceptionally low. Particularly, Na presents a barrier of only 6 meV, remarkably smaller than the reported values for most MXenes. In addition, the open-circuit voltages (OCV) values for Li, Na, and K remain well-aligned with the ideal voltage window (0.1–1.0 V), enabling high energy density and mitigating dendrite risks. The results suggest that Zr<sub>2</sub>B is a strong contender for use in advanced MXene-based anodes and provide valuable implications for future electrode development.</div></div>","PeriodicalId":20181,"journal":{"name":"Physica E-low-dimensional Systems & Nanostructures","volume":"175 ","pages":"Article 116375"},"PeriodicalIF":2.9000,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physica E-low-dimensional Systems & Nanostructures","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S138694772500205X","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"NANOSCIENCE & NANOTECHNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Rechargeable metal-ion batteries demand advanced anode materials that simultaneously offer high storage capacity, rapid ion transport, and structural robustness. This study conducts first-principles computation using density functional theory (DFT) to systematically estimate the promising of a two-dimensional (2D) Zr2B monolayer as an anode material for Li, Na, K, Mg and Ca-ion batteries (LIBs, NIBs, KIBs, MIBs and CIBs). The results indicate that Zr2B exhibits outstanding mechanical integrity, thermal and kinetic stability, and metallic conductivity favorable for efficient electron transport. Remarkably, the migration barriers of alkali metal ions (Li, Na, and K) on the Zr2B surface are exceptionally low. Particularly, Na presents a barrier of only 6 meV, remarkably smaller than the reported values for most MXenes. In addition, the open-circuit voltages (OCV) values for Li, Na, and K remain well-aligned with the ideal voltage window (0.1–1.0 V), enabling high energy density and mitigating dendrite risks. The results suggest that Zr2B is a strong contender for use in advanced MXene-based anodes and provide valuable implications for future electrode development.
期刊介绍:
Physica E: Low-dimensional systems and nanostructures contains papers and invited review articles on the fundamental and applied aspects of physics in low-dimensional electron systems, in semiconductor heterostructures, oxide interfaces, quantum wells and superlattices, quantum wires and dots, novel quantum states of matter such as topological insulators, and Weyl semimetals.
Both theoretical and experimental contributions are invited. Topics suitable for publication in this journal include spin related phenomena, optical and transport properties, many-body effects, integer and fractional quantum Hall effects, quantum spin Hall effect, single electron effects and devices, Majorana fermions, and other novel phenomena.
Keywords:
• topological insulators/superconductors, majorana fermions, Wyel semimetals;
• quantum and neuromorphic computing/quantum information physics and devices based on low dimensional systems;
• layered superconductivity, low dimensional systems with superconducting proximity effect;
• 2D materials such as transition metal dichalcogenides;
• oxide heterostructures including ZnO, SrTiO3 etc;
• carbon nanostructures (graphene, carbon nanotubes, diamond NV center, etc.)
• quantum wells and superlattices;
• quantum Hall effect, quantum spin Hall effect, quantum anomalous Hall effect;
• optical- and phonons-related phenomena;
• magnetic-semiconductor structures;
• charge/spin-, magnon-, skyrmion-, Cooper pair- and majorana fermion- transport and tunneling;
• ultra-fast nonlinear optical phenomena;
• novel devices and applications (such as high performance sensor, solar cell, etc);
• novel growth and fabrication techniques for nanostructures