Engineering vanadium vacancies to accelerate ion kinetics for high performance zinc ion battery

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 684, С. 439 - 448

Опубликована: Янв. 7, 2025

Язык: Английский

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Synergistic Oxygen Defect Engineering and Neodymium-Ion Intercalation Endows MIL-88B(V)-Derived V₂O₅ with Fast Diffusion Kinetics and Enhanced Cycling Stability for Aqueous Zinc-Ion Batteries

ACS Sustainable Chemistry & Engineering, Год журнала: 2025, Номер 13(6), С. 2553 - 2563

Опубликована: Янв. 31, 2025

Vanadium-based oxides with unique layered structures and multiple oxidation states have attracted considerable attention for aqueous zinc-ion batteries (AZIBs). However, the inferior conductivity nearly nonporous structural characteristics of commercial V2O5 inevitably hinder transport electrons/ions, inherently narrow interlayer spacing strong electrostatic interactions severely restrict further development cathodes. In this work, neodymium (Nd) ions were employed as guests to intercalate into MIL-88B(V)-derived (denoted OV-NVO) by a one-step hydrothermal process stable cathode materials AZIBs. Benefiting from its well-designed honeycomb-like porous structure, large surface area, expanded spacing, abundant oxygen vacancies, feeble interactions, OV-NVO delivered prominent discharge capacity 455.2 mAh g–1 at 0.1 A exhibited satisfactory rate capability (341.5 5.0 g–1) cycling stability (90.8% retention after 2000 cycles g–1). Impressively, assembled Zn//OV-NVO flexible battery can operate stably under extreme bending conditions exhibits superior electrochemical behavior. Furthermore, reversible Zn2+ storage mechanism evolution analyzed kinetic analysis, ex situ characterizations, density functional theory calculations. This synergistic strategy combining Nd-ion intercalation defect engineering provides an effective approach design high-performance vanadium-based materials, offering more possibilities practical applications

Язык: Английский

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Exploration of the zinc storage mechanism and kinetics of vanadium sulfides/reduced graphene oxide composites for aqueous zinc-ion battery cathodes

Advanced Composites and Hybrid Materials, Год журнала: 2025, Номер 8(2)

Опубликована: Фев. 25, 2025

Язык: Английский

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Enabling Fast and Stable Zinc-Ion Storage in Vanadyl Phosphate Cathodes

Nano Letters, Год журнала: 2025, Номер unknown

Опубликована: Фев. 26, 2025

VOPO4·2H2O (VOP) has attracted significant attention as a cathode material for aqueous zinc-ion batteries owing to its layered structure and high-voltage plateau. However, application is hindered by sluggish Zn2+ transport kinetics instability in electrolytes, leading rapid capacity fading over cycling. In the present work, diethylene glycol (DEG) pre-intercalated VOP (DEG-VOP) with flower-like morphology prepared facile hydrothermal method. The DEG molecules enlarge interplanar lattice of (001) plane introduce oxygen vacancies, accelerating mass charge transfer kinetics. addition, pre-intercalation induces self-assembly nanosheets into structure, which exposes more (201) planes, providing additional ion channels. also enhances hydrophobicity VOP, effectively suppressing decomposition dissolution. These result significantly improved discharge capacity, retention 86% after 2000 cycles at 1 A g–1.

Язык: Английский

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Representative By‐Products of Aqueous Zinc‐Vanadium Batteries: Origins, Roles, Strategies, and Prospects

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract Aqueous zinc‐ion batteries (AZIBs) are of interest in next‐generation energy storage applications owing to their safety, environmental friendliness, and cost‐effectiveness. Vanadium‐based oxides promising cathodes for AZIBs due appropriate structure multielectron redox processes. Although hundreds studies devoted understanding the mechanisms developing high‐performance vanadium‐based cathodes, many puzzles controversies still exist, especially regarding two representative by‐products, basic zinc salt (BZS) pyrovanadate (ZVO). BZS ZVO often observed on cathode anode during cycling, directly affecting battery performance. However, by‐products’ controversial unclassified insights unclear have severely limited Zn‐V batteries’ progress. Therefore, this review aims exhaustively elucidate “past present” by‐products following a logical sequence origin, role, inhibition strategy, prospect. Notably, incorporates substantial comments understandings long‐neglected issues related BZS‐related ZVO‐related dissolution mechanisms. This is expected provide scientific guidelines future optimization commercialization batteries.

Язык: Английский

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Aqueous Zinc‐Based Batteries: Active Materials, Device Design, and Future Perspectives

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 5, 2025

Abstract Aqueous zinc‐based batteries (AZBs) are emerging as a compelling candidate for large‐scale energy storage systems due to their cost‐effectiveness, environmental friendliness, and inherent safety. The design development of high‐performance AZBs have thus been the focus considerable study efforts; yet, certain properties electrode materials electrolytes still limit development. Here, comprehensive overview evaluation current progress, existing limitations, potential solutions achieve long‐cycle stability fast kinetics in is provided. Detailed analyses structural design, electrochemical behavior, zinc‐ion mechanisms various presented. Additionally, key issues research directions related zinc anodes selection systematically discussed guide future with superior performance. Finally, this review provides outlook on AZBs, highlighting challenges opportunities, foster continued rapid advancement broader practical applications field.

Язык: Английский

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Uncovering the Structure Evolution of ZnCo Heptaclusters for Electrochemical Behavior Transformation via the Total Reduction Strategy

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 25, 2025

Abstract In the realm of energy conversion and storage devices, transition metal porous oxide composites have been subject extensive research interest. Supercapacitors electrocatalysis, as two important modalities, exhibit a competitive yet balanced relationship, much like state equilibrium. this work, comprehensive reduction approach is employed during pyrolysis anionic/cationic doped molecular clusters, specifically [Zn 7 L 6 ( μ 3 ‐OCH ) ]·[CoCl 4 ] (where = 2‐methoxy‐6‐((methylimino)‐methyl)phenolate, abbreviated Zn Co 1 ). Notably, within an inert atmosphere, significant quantity diverse range reducing gases are generated throughout entire temperature spectrum , monitored by thermogravimetry‐mass spectrometry (TG‐MS). It observed that production these led to in valence oxides, thereby inducing shift electrochemical behavior from oxygen evolution supercapacitive performance at different temperatures. The ‐350 sample demonstrated reaction (OER) performance, with overpotential 168 mV current density 10 mA·cm −2 . Conversely, ‐700 exhibited excellent capacitance attaining 1406 F·g −1 A·g findings offer novel synthesis clusters electrical capabilities via total strategy.

Язык: Английский

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Advances in Defect Engineering Enhances Lithium-Ion Battery Anodes

Energy & Fuels, Год журнала: 2025, Номер unknown

Опубликована: Апрель 2, 2025

Язык: Английский

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Regulatory engineering of cathode for advanced quasi-solid-state zinc-ion battery

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 180283 - 180283

Опубликована: Апрель 1, 2025

Язык: Английский

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Recent progress and challenges of high-loading cathodes for aqueous Zn-ion batteries

Energy Materials, Год журнала: 2025, Номер 5(8)

Опубликована: Апрель 23, 2025

Owing to the advantages of low cost, rich resources, and intrinsic safety, aqueous Zn-ion batteries have attracted broad attention as promising energy storage technology for large-scale smart grids. The cathodes developed rapidly, including Mn-based cathodes, V-based halogen cathodes. High specific capacity long cycling lifespan been achieved. However, when mass loading cathode materials is scaled up practical level, stability rate property are very unsatisfactory. Therefore, in this review, we deeply analyze key issues that limit electrochemical performance high-loading batteries. Subsequently, comprehensively summarize effective solutions above issues, (1) rational binder design, (2) three-dimensional (3) material structural optimization, (4) interface engineering Zn anodes. Finally, give a critical perspective from commercial application future development high-energy-density

Язык: Английский

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