Promoted de-solvation effect and dendrite-free Zn deposition enabled by in-situ formed interphase layer for high-performance zinc-ion batteries

Energy Materials, Год журнала: 2025, Номер 5(3)

Опубликована: Янв. 11, 2025

The use of aqueous electrolytes and Zn metal anodes in Zn-based energy storage systems provides several benefits, including competitive density, excellent safety, low cost. However, dendrites growth slow ion transfer at the electrode/electrolyte interphase reduce cycle stability rate capability anode. Herein, V2O5-x interface layer was rationally controllably constructed on surface through situ spontaneous redox reaction between V2O5 layer, with an optimized thickness, plays a crucial role screening de-solvation, leading to uniform dispersion Zn2+ ions dendrite-free morphology. Moreover, as transports V element low-valence state allows oxygen anions bind more easily Zn2+. This interaction enables fast diffusion channel interfacial layer. Consequently, symmetric cells V@Zn achieve stable plating/stripping for than 1400 h 1 mA cm-2. In particular, full cell paired cathode exhibits capacity nearly 275.9 g-1 5 A after 2500 cycles without obvious deterioration, further highlighting potential practical applications.

Язык: Английский

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Orbital and Electrical Dual Function of Polymer Intercalant for Promoting NH₄⁺ Storage in Vanadium Oxide Anode

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 26, 2025

Abstract Polymer‐intercalated metal oxides have attracted considerable attention for ammonium ions (NH 4 + ) storage due to their enhanced interlayer space, which, through the pillar effect, facilitates rapid and efficient transport of NH . However, understanding remains limited regarding how polymer intercalants affect intrinsic structure host materials, especially variations in atomic orbital electronic structural induced by intercalants. Herein, a polyaniline‐intercalated vanadium oxide (P‐VO x is developed and, first time, its behavior validated as an anode material. Using various spectroscopy techniques combined with theoretical simulation, changes are analyzed intercalant. Spectroscopy studies reveal that insertion polyaniline optimizes V 2 O 5 , promoting transition electrons 3d xy state increasing occupation t 2g orbital, thereby enhancing electrical conductivity. Computational results confirm P‐VO lowers migration barrier, electron/NH transfer. As result, electrode demonstrates outstanding capacity unprecedented long‐term cycling stability. This study provides new insights into intercalant underscores advantages polymer‐intercalated VO high‐performance storage.

Язык: Английский

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A high-entropy zero-strain V-based cathode for high performance aqueous zinc-ion batteries

Energy storage materials, Год журнала: 2025, Номер 76, С. 104098 - 104098

Опубликована: Фев. 7, 2025

Язык: Английский

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Chromium-doped tunnel-structured VO2(B) nanorods as high-capacity and stable cathode materials for aqueous zinc-ion batteries

Journal of Energy Storage, Год журнала: 2025, Номер 114, С. 115826 - 115826

Опубликована: Фев. 14, 2025

Язык: Английский

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Ultrafast Tailoring Amorphous Zn0.25V2O5 with Precision‐Engineered Artificial Atomic‐Layer 1T′‐MoS2 Cathode Electrolyte Interphase for Advanced Aqueous Zinc‐Ion Batteries

Angewandte Chemie International Edition, Год журнала: 2024, Номер 64(1)

Опубликована: Сен. 30, 2024

Vanadium (V)-based oxides as cathode materials for aqueous zinc-ion batteries (AZIBs) still encounter challenges such sluggish Zn

Язык: Английский

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Advances on Defect Engineering of Niobium Pentoxide for Electrochemical Energy Storage

Small, Год журнала: 2025, Номер unknown

Опубликована: Янв. 22, 2025

Abstract The reasonable design of advanced anode materials for electrochemical energy storage (EES) devices is crucial in expediting the progress renewable technologies. Nb 2 O 5 has attracted increasing research attention as an candidate. Defect engineering regarded a feasible approach to modulate local atomic configurations within . Therefore, introducing defects into considered be promising way enhance performance. However, there no systematic review on defect process. This systematically analyzes first crystal structures and mechanisms Subsequently, systematical summary latest advances EES presented, mainly focusing vacancy modulation, ion doping, planar defects, porosity, amorphization. Of particular note effects : improving electronic conductivity, accelerating diffusion, maintaining structural stability, active sites. further summarizes diverse methodologies inducing commonly used techniques characterization In conclusion, article proposes current challenges outlines future development prospects achieve high‐performance with both high power densities.

Язык: Английский

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Advancing aqueous zinc‐ion batteries with carbon dots: A comprehensive review

EcoEnergy, Год журнала: 2024, Номер unknown

Опубликована: Дек. 3, 2024

Abstract Recent years have witnessed a surge in research on aqueous zinc‐ion batteries (AZIBs) due to their low cost, stability, and exceptional electrochemical performance, among other advantages. However, practical manufacturing deployment of AZIBs been hindered by challenges such as energy density, significant precipitation‐related side reactions, slow ion migration, dendritic growth. Addressing these issues enhancing the application necessitates development novel materials. Carbon dots (CDs), with distinctive structure superior properties, represent an innovative class carbon‐based materials broad potential applications for optimizing AZIBs' performance. This study offers comprehensive review how CDs can address aforementioned AZIBs. It begins overview composition mechanism before delving into classification, preparation techniques, functionalization strategies CDs. The also thoroughly summarizes sophisticated roles modifiers electrolytes electrodes, both positive negative, briefly discusses membranes. Additionally, it provides summary current difficulties encountered utilizing aims provide insights guidance designing next generation high‐performance

Язык: Английский

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Electrochemical activation of vanadium-based cathodes in aqueous zinc-ion batteries: Advances, challenges and prospects

Energy storage materials, Год журнала: 2024, Номер unknown, С. 103799 - 103799

Опубликована: Сен. 1, 2024

Язык: Английский

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Ammonium ion storage in hydrated vanadium oxide for energy storage

Journal of Alloys and Compounds, Год журнала: 2024, Номер unknown, С. 177915 - 177915

Опубликована: Дек. 1, 2024

Язык: Английский

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Cationic Vacancy Modulation of Mn₃O₄ as a Superior Cathode for Durable Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Год журнала: 2024, Номер 35(3)

Опубликована: Сен. 26, 2024

Abstract Aqueous zinc‐ion batteries (AZIBs) have attracted more and attention owing to their high safety, low cost, environmental friendliness. Mn‐based materials are considered as one of the most promising cathode for AZIBs because output voltage, eco‐friendliness, abundance. However, electrochemical activity manganese dissolution Mn 3 O 4 lead specific capacity inferior cycling stability, hindering its practical applications. Herein, a facile low‐cost strategy is designed that combines cationic vacancy modulation with ion‐confinement effect in synergistic action boost zinc ion energy storage capability inert (designated V ‐Mn @C). The endows active sites, resulting an increased capacity. Meanwhile, inhibited via carbon framework, thereby improving stability cathode. Consequently, developed Zn/V @C deliver 280.9 mAh g −1 98.4% retention after 100 cycles at 0.1 A . More importantly, cathodes maintain superior 5000 nearly 100% 1

Язык: Английский

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