A Five Micron Thick Aramid Nanofiber Separator Enables Highly Reversible Zn Anode for Energy‐Dense Aqueous Zinc‐Ion Batteries

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(39)

Published: July 15, 2024

Abstract The rampant dendrites growth caused by uncontrolled deposition of Zn 2+ ions at metal anode poses a significant obstacle to the practical applications aqueous zinc‐ion batteries (ZIBs). Herein, an ultrathin (5 µm) aramid nanofiber (ANF) separator is reported enhance stability and ZIB energy density. Through systematic experimental studies DFT simulations, it demonstrated that ANF with unique surface polarity can modify solvation configuration, facilitate desolvation, regulate orientation ions. Consequently, demonstrates 85‐fold increase in running time beyond 850 h compared conventional glass fiber 5 mA cm −2 /2.5 mAh . Even under harsh depth discharge conditions 50% 80%, anodes still sustain extended cycling periods over 475 200 h, respectively. As pairing this thin high‐areal‐capacity Mn 2.5 V 10 O 24 ∙5.9H 2 cathode low negative capacity/positive capacity ratio (2.64) full cell, superior gravimetric/volumetric density (129.2 Wh kg −1 /142.5 L ) achieved, far surpassing majority counterparts literature. This work offers promising for promoting utilization energy‐dense ZIBs.

Language: Английский

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Pomegranate‐Inspired Cathodes Mitigate the Mismatch Between Carrier Transport and High Loading for Aqueous Zinc‐Ion Batteries

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(25)

Published: April 9, 2024

Abstract The development of high‐energy‐density aqueous zinc‐ion batteries requires the preparation cathodes with a thick layer active material. However, insulating nature and dissolution vanadium‐based oxides lead to low areal capacity (0.1,1 mA h cm −2 ) during charge/discharge cycle. Herein, V 2 O 5 nanospheres are generated by anchoring onto laser‐induced graphene (LIG) conductive network through defect‐induced adsorption, resulting in formation pomegranate‐like @LIG composites. unique abundant defect structure honeycomb LIG can trigger uniform high specific surface area interact electronically enhance electrical conductivity cathode materials up four orders magnitude. In contrast conventional carbon that cause steric hindrance for ion transport, micropores within shorten transport path cathode. Concurrently, encapsulated effectively prevents material corrosion. Under high‐loading mass 17.1 mg , full cell is stably cycled 200 cycles, possessing 92.5% retention, achieving 6.05 .

Language: Английский

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A Multi‐Colored, Structure‐Tolerant Vanadate Cathode for High‐Performance Aqueous Zinc‐Ion Batteries

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Abstract Vanadium‐based cathode materials for aqueous zinc‐ion batteries (AZIBs) have attracted much attention in large‐scale energy storage devices yet their unsatisfactory cyclic stability and slow diffusion rate of Zn 2+ ions during insertion extraction hinder further commercial applications. Therefore, the development vanadium‐based with stable crystal structures fast remains challenging. Herein, Na 2 CaV 4 O 12 (NCVO) nanowires are reported as a promising excellent electrochemical performance AZIBs, simultaneously rendering high specific capacity (443.2 mAh g −1 at 0.1 A ) average voltage plateau (0.91 V) impressive density (403.3 Wh kg power (1533 W ). As NCVO features unique open structure alternately arranged inactive layers ([NaO 6 ] [CaO 8 polyhedra) active ([VO tetrahedra), expansion [VO tetrahedra is well balanced by contraction layer, thus enabling remarkable long‐term cycling (91.9% 80% retention after 5000 10 000 cycles , respectively). With electrochromic property cathode, AZIB can be used adaptive camouflage under range scenarios, shedding light on future high‐performance cathodes AZIBs.

Language: Английский

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N-Doping-Induced Amorphization for Achieving Ultrastable Aqueous Zinc-Ion Batteries

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(20), P. 26079 - 26087

Published: May 14, 2024

Vanadium-based oxides, known for their high capacity and low cost, have garnered significant attention as promising cathode candidates in aqueous zinc-ion batteries. Nonetheless, poor rate performance limited durability electrolytes present a challenge to the realistic implementation of vanadium-based Here, we synthesized nitrogen-doped V

Language: Английский

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A Comprehensive Strategy Enables High‐Loading BiOBr@BiOIO₃ Cathodes for Quasi Ah‐Level Aqueous Zn‐Ion Batteries

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Abstract Aqueous Zn‐ion batteries (AZIBs) recently have attracted broad attention. To achieve high energy density of AZIBs, constructing high‐loading cathodes is the prerequisite. However, cycling stability still faces great challenges. Herein, a comprehensive strategy proposed to improve structural cathode material and mechanical cathode. The BiOBr@BiOIO 3 heterostructure are successfully constructed via sharing interfacial oxygen atoms, in which effect can effectively enhance reaction dynamics stability. Meanwhile, biomimetic binder skillfully designed situ dual cross‐linking between guar gum cation ions application water‐based sustainable polymer AZIBs. Density functional theory calculations demonstrate possesses strong affinity toward firmly adhere active materials. Quantitative nanomechanic technology visually demonstrates robust properties as‐obtained As result, when loading increases as 100.71 mg cm −2 , an ultrahigh areal capacity 20.02 mAh be achieved. Specially, quasi‐Ah‐level (0.244 Ah) pouch‐type cell with 1.17 g constructed, showing practical potential.

Language: Английский

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Advances of Vanadium‐based Cathodes forAqueous Zinc Ion Batteries

Chemistry - A European Journal, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Aqueous zinc-ion batteries (AZIBs) are promising for energy storage due to their high safety, low cost, and environmental friendliness. Vanadium-based materials, including vanadium oxides, sulfides, vanadate, carbon composites, have gained attention diverse crystal structures, multiple oxidation states, theoretical capacities. This review summarizes recent advances in vanadium-based cathodes, focusing on structural design modification strategies, such as amorphous defect engineering, conductive matrices, cation pre-intercalation enhance Zn2+ storage. Vanadium oxides sulfides offer unique ion diffusion advantages, while vanadate composites improve conductivity stability. Vanadate is highlighted a critical approach reduce electrostatic repulsion facilitate (V-MOF derivations, @ carbon, combined with graphene polymer) advantages terms of conductivity, diffusion, Emerging materials like VN, VOPO₄ V2CTx also discussed. Future directions include multi-guest doping, anion pre-intercalation, advanced integration. aims guide the development high-performance AZIBs inspire future research this field.

Language: Английский

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Water molecule regulation enhanced stability and kinetics of V6O13 cathode for high-mass loading aqueous zinc-ion batteries

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179721 - 179721

Published: March 1, 2025

Language: Английский

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Coordination optimization of central V atoms induced by Cu2+ for enhanced Zn2+ storage in layered vanadium oxides

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 690, P. 137295 - 137295

Published: March 11, 2025

Language: Английский

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Insight Into Pre‐Intercalation of Layered Vanadium Oxide Cathodes: From Precise Control of the Interspace to Related Electrochemical Performance and Beyond

Carbon Energy, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

ABSTRACT Pre‐intercalation is the mainstream approach to inhibit unpredicted structural degradation and sluggish kinetics of Zn‐ions migrating in vanadium oxide cathode aqueous zinc‐ion batteries (AZIBs), which has been extensively explored over past 5 years. The functional principles behind improvement are widely discussed but have limited enlargement interspace between VO layers. As different types ions could change properties oxides various ways, review starts with a comprehensive overview pre‐intercalated molecules ions, such as metal water molecules, non‐metallic cations, along their resulting performance. Furthermore, cathodes reported so far summarized, comparing interlayer space, capacity, cycling rate, capacity retention after long cycling. A discussion relationship performance provided. widest interspaces result decay stability. Based on data, optimal likely be around 12 Å, indicating that precise control useful method. However, more consideration required regarding other impacts oxide. It hoped this can inspire further understanding cathodes, paving new pathway development advanced better stability larger energy density.

Language: Английский

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Defective 1T-VS2 with Fibonacci Pattern Unlocking High Mass-Loading and Self-Charging Cathodes for Aqueous Zinc-Ion Batteries

Energy & Environmental Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Defective 1T-VS 2 with fibonacci pattern designed a multi-scale strategy for high mass-loading and self-charging cathodes in aqueous zinc-ion batteries.

Language: Английский

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