Comprehensive crystallographic engineering for high-efficiency and durable zinc metal anodes

Progress in Materials Science, Год журнала: 2025, Номер unknown, С. 101453 - 101453

Опубликована: Фев. 1, 2025

Язык: Английский

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Highly Reversible Aqueous Zinc‐Ion Batteries via Multifunctional Hydrogen‐Bond‐Rich Dulcitol at Lower Temperature

Small, Год журнала: 2025, Номер 21(11)

Опубликована: Янв. 31, 2025

Abstract Aqueous zinc‐ion batteries (AZIBs) are considered one of the most promising next‐generation energy storage devices due to cost‐effectiveness and high safety. However, uncontrolled dendrite growth intolerance against low temperatures hinder application AZIBs. Herein, hydrogen‐bonding‐rich dulcitol (DOL) is introduced into ZnSO 4 , which reshaped hydrogen‐bond network in electrolyte optimized solvation sheath structure, effectively reducing amount active water molecules inhibiting hydrogen evolution parasitic reaction at zinc anode. In addition, higher adsorption DOL preferentially adsorbs on surface anode, guiding uniform deposition Zn 2+ formation dendrites. also enhances interaction between free improves resistance freeze electrolyte. Consequently, Zn//Zn symmetric cells assembled with extremely stable cycled for 2000 h 2 mA cm −2 . The NH V O 10 (NVO)//Zn full cell showed more excellent specific capacity 183.07 mAh g −1 after 800 cycles. Even temperature −10 °C, still maintains 155.95 600 This work provides a new strategy subsequent study AZIBs stability temperatures.

Язык: Английский

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Accelerated Discovery of Solvation Structure Engineering for Stable Aqueous Rechargeable Zinc Batteries via Physics‐Guided Bayesian Active Learning

Small, Год журнала: 2025, Номер unknown

Опубликована: Фев. 28, 2025

Aqueous rechargeable zinc batteries, despite advantages like safety and performance, struggle with water-based side reactions such as hydrogen evolution corrosion. Regulating the solvation structure of Zn2+ is essential for stability. Introducing n-hexane, a nonpolar alkane, modifies coordination stabilizes Zn anode-electrolyte interface. The miscibility n-hexane improved through formation an oil-in-water macroemulsion amphiphilic Zn(OTf)2 β-cyclodextrin. Macroemulsion stability highly sensitive to component concentrations, requiring precise balance ensure proper electrolyte function. However, designing multi-component electrolytes remains empirical. To address this, Bayesian optimization framework presented, incorporating physical relationships into machine learning efficiently explore design space. This approach rapidly identifies critical concentration stability, which key maintaining phase in electrolyte. optimized maintains low overpotential (30 mV) over 1300 h Zn||Zn symmetric cell, current density 1 mA cm-2.

Язык: Английский

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Branch Chain Variations Modulate Pyridine Derivative Adsorption for Long‐Life Zinc‐Ion Battery

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 17, 2025

Abstract Aqueous zinc‐ion batteries (AZIBs), candidates for large‐scale energy storage, face limitations due to the poor reversibility of zinc anodes. It reports on pyridine derivatives with high donor characteristics, including 2‐chloro‐1‐methylpyridinium iodide (CMPI) and pyridine‐2‐acetaldoxime methyl (PAMI), as effective additives. At lower concentrations, these additives markedly curtail dendrites formation evolution hydrogen anode, thereby prolonging AZIBs life. Through a combination theory experiments, impact side‐chain groups kinetic process depositioni is elucidated. In contrast PAM + , CMPI demonstrates enhanced adsorption self‐assembles at anode‐electrolyte interface, forming barrier free water protective ZnI layer via I − ion integration. This dual‐layer strategy boosts plating/stripping by 100‐fold achieves coulombic efficiency 99.7% in zinc–copper half‐ batteries. The findings advance understanding electrolyte additive structures deposition, providing molecular framework screening aqueous metal‐ion

Язык: Английский

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Polyhydroxy Sodium Salt Additive to Regulate Zn²⁺ Solvation Structure and Zn Deposition Texture for High‐Stability and Long‐Life Aqueous Zinc Batteries

Small, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract Electrolyte additives are commonly employed in aqueous zinc‐ion batteries (ZIBs) to suppress dendrite growth, corrosion, and hydrogen evolution. However, rational design principles systematic mechanistic studies for selecting suitable regulate reversible Zn plating/stripping chemistry worth in‐depth study. Using L‐ascorbic acid sodium (LAAS) as the representative, theoretical calculations combined with situ experimental analyses manifest that polyhydroxy‐sodium‐salts preferentially chemisorbed on surface construct H 2 O‐poor interfacial microenvironment, suppressing undesirable water‐related side reactions. Concurrently, ions provide an armor shielding layer electric field guide (002) deposition texture. Specifically, sodium‐salts replace O molecules coordinated shell of hydrated 2+ ions, improving electrochemical stability window (ESW) extend working voltage ZIBs. Therefore, Zn||Zn symmetric cell additive exhibits impressive cumulative capacity 7875 mAh cm −2 at high current density 30 mA . Even when discharge expands 1.8 V, Zn||V 5 full realizes a retention 98.26% over 500 cycles. This work quickens advanced ZIBs by green cheap electrolyte additive, which is expected herald innovative phase research high‐stability batteries.

Язык: Английский

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Fundamentals, Advances and Perspectives in Designing Eutectic Electrolytes for Zinc-Ion Secondary Batteries

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Март 6, 2025

Zinc-ion secondary batteries have been competitive candidates since the "post-lithium-ion" era for grid-scale energy storage, owing to their plausible security, high theoretical capacity, plentiful resources, and environment friendliness. However, many encumbrances like notorious parasitic reactions Zn dendrite growth hinder development of zinc-ion remarkably. Faced with these challenges, eutectic electrolytes aroused notable attention by virtue feasible synthesis tunability. This review discusses definition advanced functionalities in detail divides them into nonaqueous, aqueous, solid-state regard state component electrolytes. In particular, corresponding chemistry concerning solvation structure regulation, electric double layer (EDL) structure, solid-electrolyte interface (SEI) charge/ion transport mechanism is systematically elucidated a deeper understanding Moreover, remaining limitations further are discussed electrolyte design extended applications.

Язык: Английский

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Sugar Alcohols Induced Steric Hindrance Modulation Boosting Unconventional Zn(101) Facet Texture Anode

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 10, 2025

Abstract The electrode/electrolyte interfacial side reaction is a critical issue for aqueous zinc ion batteries (ZIBs). In this study, it presents an innovative electrolyte designed to utilize steric hindrance effects modulate Zn deposition behavior while mitigating undesirable hydrogen evolution reactions. incorporation of sugar alcohols into the facilitates reconfiguration bonding network, alters solvation structure 2 ⁺ ions, and promotes rapid desolvation process, resulting in enhanced transport kinetics. Additionally, xylitol molecules preferentially adsorb onto (100) crystalline surface, inducing structural changes promote (101) growth. Consequently, configuration enables anode achieve impressive operational lifespan 2100 h exceptional Coulombic efficiency 99.8%. Furthermore, when paired with ZnHCF as anode, full cell operates at high voltage 1.75 V, illustrating promising pathway practical application ZIBs.

Язык: Английский

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Synergistic Long‐ and Short‐Range Sodium‐Ion Transport Pathways for Enhanced Low‐Temperature Performance in Ceramic‐DEE‐Polymer Electrolytes

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 21, 2025

Abstract The sluggish movement of polymer chains at low temperatures limits the performance polymer‐based solid‐state batteries, especially for transporting large sodium ions. This study introduces a synergistic ion transport strategy integrating short‐ and long‐range pathways enhanced sodium‐ion mobility. Electrospun ceramic nanofibers, modified with acylamino groups, form interfacial channels, while deep eutectic electrolytes (DEE) confined within these channels enable temperature‐independent, transport. Surrounding facilitate short‐range migration between DEE. composite electrolyte achieves high ionic conductivity (0.088 mS cm⁻¹ −50 °C) exceptional rate up to 20 C. structure confines DEE fiber interfaces, preventing formation gel‐like state due DEE‐polymer mixing, maintaining robust mechanical properties. interacts polar groups on both fibers matrix, reducing side reactions metal anode improving cycle stability. retains 92.2% capacity retention −30 °C after 100 cycles 97.7% 1000 26 °C, stable over 10 000 5 design offers an efficient pathway enabling superior even ultra‐low temperatures.

Язык: Английский

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Multiple Regulation of Electrolyte with Trace Amounts of Sodium Dehydroacetate Additives Enables High‐Performance Aqueous Zinc‐Ion Batteries

Small, Год журнала: 2025, Номер unknown

Опубликована: Март 26, 2025

Rechargeable aqueous zinc-ion batteries (AZIBs) draw much attention for low cost and high safety. However, hydrogen evolution reaction (HER) uneven Zn2+ deposition shorten lifespan, hampering commercial use. In this study, sodium dehydroacetate (SD) containing carbonyl keto-carbonyl is introduced as multifunctional electrolyte additives, which effectively modifies the solvent shell structure, achieving a transference number of up to 0.72. Acting bond acceptor, SD disrupts water network thereby increasing HER overpotential by 22 mV corrosion potential 9 mV. The polar functional groups in can reversibly capture H⁺ ions dynamically neutralize OH⁻ ions, maintaining interfacial pH balance on zinc anode suppressing HER. Notably, not only alters electrolyte's kinetic but also induces uniform along (002) plane, inhibiting dendrite growth minimizing side reactions. This phenomenon demonstrated both symmetric full-cell configurations. Zn//Zn cell achieves an ultra-long cycling lifespan 2800 hours at 5 mA cm⁻2, Zn//VO2 full battery maintains capacity retention rate 73.09% after 2000 cycles with average coulombic efficiency 99.98%, underscoring effectiveness additive enhancing performance.

Язык: Английский

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Zeolite‐Based Solid‐State Electrolyte for Highly Stable Zinc Metal Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 25, 2025

Abstract Solid‐state electrolytes are demonstrated great inhibition effect on cathodic dissolution and anodic side reactions in zinc‐ion batteries. In this work, a novel zeolite‐based solid electrolyte (Zeolite‐Zn) enriched with zinc ions, high ionic conductivity (2.54 mS cm −1 ) Zn 2+ transference number (0.866) is prepared through ion‐exchange strategy. Owing to the anhydrous characteristic, Zeolite‐Zn effectively extends electrochemical window 2.5 V inhibits hydrogen evolution reaction. As for Zn||Zeolite‐Zn||NH 4 O 10 batteries, high‐capacity retention rate of 84.9% can be achieved after 1010 cycles at 0.5 A g . Even temperature 60 °C, NH cathode able maintain reversible capacity 239.2 mAh 110 cycles, which attributed superior structural stability, weak interfacial reaction, low migration barrier, inhibited vanadium electrolyte. addition, as‐fabricated Zn||Zeolite‐Zn||AC@I 2 batteries have also brilliant performances, suggesting its promising potential practical application zinc‐based secondary This study provides mechanistic insights inspiration original design inorganic electrolytes.

Язык: Английский

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