Tunnel‐Oriented VO₂ (B) Cathode for High‐Rate Aqueous Zinc‐Ion Batteries

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(25)

Published: March 16, 2024

Tunnel-type vanadium oxides are promising cathodes for aqueous zinc ion batteries. However, unlike layer-type with adjustable layer distances, enhancing ion-transport kinetics in tunnels characterized by fixed sizes poses a considerable challenge. This study highlights that the macroscopic arrangement of electrode crucially determines tunnel orientation, thereby influencing transport. By changing material morphology, orientation can be optimized to facilitate rapid diffusion. In proof-of-concept demonstration, it is revealed (00l) facets-dominated VO

Language: Английский

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Constructing ultra-stable, high-energy, and flexible aqueous zinc-ion batteries using environment-friendly organic cathodes

Chemical Science, Journal Year: 2024, Volume and Issue: 15(13), P. 4952 - 4959

Published: Jan. 1, 2024

Aqueous zinc batteries using environment-friendly and sustainable quinone cathodes realize a long life cycle, high active mass loading, excellent flexibility, showing its potential for application in wearable electronics.

Language: Английский

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Failure Mechanisms and Strategies for Vanadium Oxide‐Based Cathode in Aqueous Zinc Batteries

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

Published: Jan. 7, 2025

Abstract With the increasing safety concerns and consensus on sustainability, aqueous zinc‐ion batteries (AZIBs) are gaining significant attention as a green efficient alternative for energy storage technologies. However, prolonged persistent chemical dissolution electrochemical capacity fading of one dominant vanadium oxide cathodes has long posed an unavoidable challenge. Meanwhile, mechanism AZIBs remains controversial, along with formation parasitic derived cathode‐related products during repeated charge/discharge procedure. Herein, this review expects to provide comprehensive analysis fundamental redox reactions in oxide‐based AZIBs, particular emphasis nanostructure features their evolution, ionic transference, occupation, elucidate underlying mechanisms involved system. Furthermore, several effective strategies, including cathode modification electrolyte design summarized. Finally, offers potential avenues advancing materials, inorganic colloids, high‐entropy electrolytes, characterization, thereby contributing continued development field.

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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Structural Engineering of Vanadium Oxide Cathodes by Mn²⁺ Preintercalation for High-Performance Aqueous Zinc-Ion Batteries

ACS Applied Energy Materials, Journal Year: 2023, Volume and Issue: 6(11), P. 6201 - 6213

Published: May 15, 2023

Aqueous zinc-ion batteries (ZIBs) have attracted much attention because of their high theoretical capacity and inherent safety. An essential requirement is to design robust cathodes match the excellent electrochemical properties zinc anodes. Herein, we report a facile strategy that designed an intercalation-type cathode by incorporating interlayer engineering Mn2+ oxygen defects into tunnel-type VO2 nanoribbons. The embedded ions act as pillars extend tunnel structure with improved fast reversible intercalation/deintercalation Zn2+ in ZIBs, enhancing electrical conductivity improving redox activity. In addition, vacancies MnVO nanoribbons can provide extra electrochemically active sites for storage. As result, electrode delivers 462.5 mA h g–1 at 0.1 A g–1, outstanding rate performance (120 5 after 2500 cycles), ultralong cycling 10 remaining 52 over 10,000 cycles. Therefore, this work provides enlightened superior vanadium-based oxide toward advanced ZIBs.

Language: Английский

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Zinc-ion hybrid capacitors: Electrode material design and electrochemical storage mechanism

Journal of Power Sources, Journal Year: 2024, Volume and Issue: 610, P. 234638 - 234638

Published: May 18, 2024

Language: Английский

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Dual mechanism with graded energy storage in long-term aqueous zinc-ion batteries achieved using a polymer/vanadium dioxide cathode

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(18), P. 6666 - 6675

Published: Jan. 1, 2024

The functional groups on NDA can fix the iodine produced in oxidation process, forming a graded energy storage structure.

Language: Английский

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Rational design of amorphous vanadium pentoxide and hollow porous carbon spheres hybrid for superior zinc-ion battery

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 677, P. 608 - 616

Published: Aug. 13, 2024

Language: Английский

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Optimizing ammonium vanadate crystal structure by facile in situ phase transformation of VO₂/NH₄V₄O₁₀ with special micro–nano feature for advanced aqueous zinc ion batteries

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(4), P. 1266 - 1278

Published: Jan. 1, 2024

NH 4 + -defected V O 10 with microflower morphology was synthesized via hydrothermal method and in situ phase transition to improve specific capacity (494.0 mA h g −1 ), Zn 2+ diffusion efficiency structural stability (71.8% for 2000 cycles).

Language: Английский

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Synergy of structural engineering and VO2 self-transformation enables ultra-high areal capacity cathodes for zinc-ion batteries

Carbon, Journal Year: 2024, Volume and Issue: 226, P. 119241 - 119241

Published: May 13, 2024

Language: Английский

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