CeY bimetallic oxide coating with abundant oxygen vacancies and superior semiconductor property for the stable zinc metal anode

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162304 - 162304

Опубликована: Апрель 1, 2025

Язык: Английский

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Cathodic dehalogenation polymerization of 2′,3′,5′,6′-tetrafluoro-4,4″-diiodo-1,1′:4′,1″-terphenyl on zinc metal surface for anode protection

Microstructures, Год журнала: 2025, Номер 5(3)

Опубликована: Апрель 17, 2025

Fluorine-containing poly(p-phenylene) (CityU-42) films on zinc surfaces were directly synthesized using a cathodic dehalogenation C-C coupling strategy. The as-prepared polymers can effectively protect the substrate in aqueous zinc-ion batteries. Because CityU-42 is rich electronegative fluorine group, it attract uniform deposition and rapid diffusion of Zn2+ surface anode. Moreover, large number benzene rings provide certain mechanical strength, enabling protective layer to inhibit growth dendrites. As result, symmetric Zn cell used CityU-42@Zn stably cycle for over 1,900 h under 5 mA cm-2 1 mAh cm-2, while V2O5 full cells maintain high capacity retention after 800 cycles at A g-1. results highlight potential synthesizing conjugated technology, paving way further advancement field energy storage technology.

Язык: Английский

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Self-Assembled Monolayer Enables a Nucleophilic Interfacial Layer for Highly Reversible Zinc Metal Anode

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Апрель 22, 2025

Aqueous zinc-ion batteries (AZIBs) are promising candidates for next-generation energy storage systems. However, the practical implementation is hindered by challenges associated with zinc (Zn) dendrite growth and parasitic side reactions. Here, we designed a self-assembled monolayer (SAM) using theanine (CA) to modify Zn anode. As expected, CA can strongly interact substrate through carboxyl groups, forming compact uniform SAM. The amino amide functional groups of exhibit high affinity, effectively regulating Zn2+ flux achieving deposition. ultrathin interface provided acts as barrier water molecules, thereby suppressing hydrogen evolution reactions (HER) minimizing formation undesirable byproducts. result, anodes protected demonstrate exceptional durability, operating over 2000 h at current density 5 mA cm-2 an areal capacity 2 mAh cm-2. Additionally, full cells paired NH4V4O10 cathodes also superior reaction reversibility retention. CA-based SAM holds promise overcoming critical faced in anode advancing development stable efficient AZIBs.

Язык: Английский

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Anion Capture-Cation Anisotropic Transport Mediator Enables Fast Zinc-Ion Solid Electrolyte Design

Energy storage materials, Год журнала: 2025, Номер unknown, С. 104282 - 104282

Опубликована: Апрель 1, 2025

Язык: Английский

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Wind-eroded landform-inspired organic salt protective coating for highly reversible zinc anodes

Journal of Power Sources, Год журнала: 2025, Номер 647, С. 237304 - 237304

Опубликована: Май 12, 2025

Язык: Английский

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Immobilizing Zwitterionic Molecular Brush in Functional Organic Interfacial Layers for Ultra-Stable Zn-Ion Batteries

Nano-Micro Letters, Год журнала: 2025, Номер 17(1)

Опубликована: Май 20, 2025

Abstract Rechargeable zinc-ion batteries have emerged as one of the most promising candidates for large-scale energy storage applications due to their high safety and low cost. However, use Zn metal in suffers from many severe issues, including dendrite growth parasitic reactions, which often lead short cycle lives. Herein, we propose construction functional organic interfacial layers (OIL) on anodes address these challenges. Through a well-designed organic-assist pre-construction process, densely packed artificial layer featuring immobilized zwitterionic molecular brush can be constructed, not only efficiently facilitate smooth plating stripping, but also introduce stable environment battery reactions. density theory calculations experimental characterizations, verify that propane sulfonate significantly lower barrier increase kinetics 2+ transport. Thus, anode with OIL improve life symmetric cell over 3500 h operation. When paired H 2 V 3 O 8 cathode, aqueous Zn-ion full cells continuously cycled 7000 cycles, marking an important milestone development potential industrial applications.

Язык: Английский

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A Spatiotemporal‐Orchestrated Hybrid Interphase for Highly Reversible Zinc Batteries

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 27, 2025

Abstract In situ construction of multifunctional solid electrolyte interphases (SEIs) has proved effective in mitigating dendrite, corrosion, and hydrogen evolution challenges aqueous zinc (Zn) batteries. However, current SEI formation occurs predominantly during the electrochemical process, rendering Zn anode susceptible to parasitic reactions prior process. Herein, a spatiotemporal‐orchestrated hybrid is proposed, using hydrous organic comprising hydrated Zn(BF 4 ) 2 salt propylene carbonate (PC) solvent. The facilitates initial rigid inorganic ZnF component battery resting, providing immediate protection for anodes upon contact with electrolyte, followed by generation flexible species via electro‐decomposition PC molecules cycling. This rigid‐flexible coupled capable accommodating substantial volume changes plating/stripping, preventing cracking ensuring long‐term stability. As result, sustains stable cycling over 1500 h, high Coulombic efficiency 99.8%, enhanced performance even conventional electrolytes. Zn||V O 5 full cells configured coin, cylindrical, pouch formats also show significantly extended findings provide new insights into design high‐performance, practical metal

Язык: Английский

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In Situ Construction of Crystalline–Amorphous Hybrid Passive Interphase for Stable and Reversible Zinc Metal Anode

ACS Applied Energy Materials, Год журнала: 2024, Номер 7(11), С. 4975 - 4984

Опубликована: Май 22, 2024

One advantage of aqueous zinc-ion batteries (AZIBs) is the utilization zinc metal as an anode. However, long-term stable operation anodes hindered by dendrites and corrosion. Herein, we introduce a Zn–Y–V-oxide-based in situ passive interphase (PI) with crystalline–amorphous hybrid structure that has been optimized for highly reversible Zn anodes. This interface layer enhances corrosion resistance anode electrolyte, reduces side reactions, optimizes electro-crystallization orientation, resulting dendrite-free plating. The modified PI exhibits remarkable stability, sustaining plating/stripping process 2000 h at 1 mA·cm–2 while maintaining high cycling stability good capacity retention when paired NH4V4O10 or α-MnO2 cathodes. Our research presents straightforward one-step reaction fabrication PI, offering approach toward durable long-lasting AZIBs.

Язык: Английский

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Zincophile Zn²⁺ Conductor Regulation by Ultrathin Nano MoO₃ Coating for Dendrite‐Free Zn Anode

Small Methods, Год журнала: 2024, Номер unknown

Опубликована: Сен. 13, 2024

Abstract Aqueous battery with nonflammable and instinctive safe properties has received great attention. However, issues related to Zn anode such as side reactions rampant dendrite growth hinder the long‐term circulation of AZMBs. Herein, an ultrathin(35 nm) MoO 3 coating is deposited on by means vacuum vapor deposition for first time. Due peculiar layer structure , insertion 2+ in x acts ion conductor, which regulates ordered manner. Additionally, can also inhibit hydrogen evolution corrosion at interface. Therefore, both Zn//MoO @Cu asymmetric symmetric cells manage deliver satisfactory electrochemical performances. The cell assembled @Zn shows a significant long cycle life more than 1600 h current density 2 mA cm −2 . Meanwhile, @Zn//Cu exhibits ultrahigh deposition/stripping efficiency 99.82% after stable cycling 650 This study proposes concept “zincophile conductor regulation” dictate electrodeposition broadens novel design evaporation nano modified anodes.

Язык: Английский

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Organic Small Molecules of Hydroxy-Rich Vitamins as Electrolyte Additives for Inducing Dendrite-Free and High-Performance Aqueous Zn-Ion Batteries

Energy & Fuels, Год журнала: 2024, Номер unknown

Опубликована: Окт. 3, 2024

Язык: Английский

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