Thermal‐Cyclized Polyacrylonitrile Artificial Protective Layers Toward Stable Zinc Anodes for Aqueous Zinc‐Based Batteries

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(21)

Published: Jan. 14, 2024

Abstract Aqueous Zn‐based batteries (AZBs) have appealed numerous attentions in the energy storage field due to their low cost, environmental friendliness and high safety. However, Zn metal anode faces severe challenges of short cycle life because dendrite growth side reactions, which hinders practical application AZBs. Herein, an artificial coating layer cyclized polyacrylonitrile (cPAN) is designed on through spin‐coating thermal treatment. The cPAN possesses abundant N‐containing groups delocalized π‐conjugation structure, endows with nucleation barrier homogeneous electric field. Benefiting from these synergetic advantages, overpotential remarkably decreased. Furthermore, no obvious byproduct observed cPANZ‐Zn after cycling. As a result, resultant delivers long lifespan 600 h reversibility. cPANZ‐Zn||MnO 2 full cells are further assembled exhibited stable cycling rate capability.

Language: Английский

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Heterojunction tunnelled vanadium-based cathode materials for high-performance aqueous zinc ion batteries

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 665, P. 564 - 572

Published: March 25, 2024

Language: Английский

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Construction of Stable Zn Metal Anode by Inorganic Functional Protective Layer Toward Long-Life Aqueous Zn-Ion Battery

Energy storage materials, Journal Year: 2024, Volume and Issue: 71, P. 103628 - 103628

Published: July 8, 2024

Language: Английский

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Construct wave-like structure on the anode surface for achieving controllable zinc deposition in aqueous zinc-ion batteries

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 115, P. 115991 - 115991

Published: Feb. 27, 2025

Language: Английский

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Tunable N-doped Carbon Dots/SnO2 Interface as a Stable Artificial Solid Electrolyte Interphase for High-Performance Aqueous Zinc-Ion Batteries

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: 1013, P. 178521 - 178521

Published: Jan. 1, 2025

Language: Английский

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Recent progress and perspectives on highly utilized Zn metal anode - towards marketable aqueous Zn-ion batteries

Energy storage materials, Journal Year: 2024, Volume and Issue: 72, P. 103689 - 103689

Published: Aug. 6, 2024

Language: Английский

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Size Confinement Strategy Effect Enables Advanced Aqueous Zinc–Iodine Batteries

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(44)

Published: Aug. 6, 2024

Abstract Aqueous Zn–I 2 batteries have considerable potential owing to their environmental friendliness and high safety. However, the slow iodine conversion kinetics shuttle effect prevent practical applicability. In this study, a series of Zn‐MOF‐74 rods with controllable diameters 40–500 nm are facilely prepared, denoted as P1–P5. A size confinement strategy derived porous carbon hosts is proposed suppress formation undesirable species, such I 3 − 5 . Moreover, graphitization degree samples, including P2‐900, P2‐1000, P2‐1100, play critical on kinetics. The P2‐1000 sample possesses conductive skeleton abundant mesopores, which improve adsorption ability toward species. electrochemical tests in situ technology reveal mechanism iodine. As result, @P2‐1000 cathode exhibits superior discharge capacity 179.9 mA h g −1 at 100 exceptional long‐term cycle after 5000 cycles. Furthermore, soft flexible quasi‐solid‐state capable powering devices, promising exhibit tremendous adaptability realize electronic devices various scenarios.

Language: Английский

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Issues and optimization strategies of binders for aqueous zinc metal batteries

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154916 - 154916

Published: Aug. 17, 2024

Language: Английский

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Multi‐Group Polymer Coating on Zn Anode for High Overall Conversion Efficiency Photorechargeable Zinc‐Ion Batteries

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 14, 2024

The solar-driven photorechargeable zinc-ion batteries have emerged as a promising power solution for smart electronic devices and equipment. However, the subpar cyclic stability of Zn anode remains significant impediment to their practical application. Herein, poly(diethynylbenzene-1,3,5-triimine-2,4,6-trione) (PDPTT) was designed functional polymer coating Zn. Theoretical calculations demonstrate that PDPTT not only significantly homogenizes electric field distribution on surface, but also promotes ion-accessible surface With multiple N C=O groups exhibiting strong adsorption energies, this reduces nucleation overpotential Zn, alters diffusion pathway

Language: Английский

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Stress Release of Zincophilic N‐Doped Carbon@Sn Composite on High‐Curvature Surface of Zinc Foam for Dendrite‐Free 3D Zinc Anode

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

Published: Jan. 15, 2025

Abstract Commercial 3D zinc foam anodes with high deposition space and ion permeation have shown great potential in aqueous batteries. However, the local accumulated stress from its high‐curvature surface exacerbates Zn dendrite issue, leading to poor reversibility. Herein, we employed zincophilic N‐doped carbon @ Sn composites (N‐C@Sn) as nano‐fillings effectively release of curvature foams toward dendrite‐free anode battery (AZIB). These electronegative conductive N‐C@Sn supporters can provide a highly channel for initial nucleation reduce current density regulating deposition. Uniform further assists homogenous distribution on platting surface, which gives positive feedback loop improve As result, composite (ZCSn Foam) symmetric cell achieves long cycle lifespan 1100h at 0.5 mA cm −2 , much more than that Foam (∼80 h lifespan). The full ZCSn Foam||MnO 2 exhibits remarkable reversibility 67% retention after 1000 cycles 0.8 A g −1 76% 1600 Ag . This 3D‐constructing strategy may offer promising practical pathway metal application.

Language: Английский

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