An Organometallic Chelated Electrolyte Based on 5‐Sulfosalicylic Group Coordination for Elevated Performance in Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 30, 2025

Abstract In aqueous ZnSO 4 electrolyte, the highly reactive water ligands induce severe dendrite formation, hydrogen evolution reaction (HER), and zinc anode corrosion, significantly hampering plating/stripping efficiency cycling durability of zinc‐ion batteries (AZIBs). To address these challenges, a metal‐organic chelated electrolyte is developed utilizing 5‐sulfosalicylic acid (SA) group coordinated salt (ZSA). Theoretical calculations reveal that lowest unoccupied molecular orbital (LUMO) ZSA predominantly localized on SA 2− ligand rather than H 2 O, resulting in reduced activity O. Consequently, exhibits enhanced Zn reversibility compared to conventional electrolyte. Zn//Zn symmetric employing achieve life exceeding 1400 h, while Cu//Zn asymmetric using attain an average Coulombic 99.1%, outperforming ‐based Microscopy electrode‐electrolyte interface studies confirm effectively suppresses growth, HER, corrosion. A demonstrated poly(1,5‐diaminonaphthalene) (1,5‐PDAN)//Zn battery ultralong lifespan over 7500 cycles, maintaining capacity retention above 71% at 1.0 g −1 . This study highlights significant potential rationally designed complex electrolytes developing cost‐effective, long‐cycling, environmentally friendly multi‐valent secondary batteries.

Язык: Английский

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Quasi-Solid-State Electrolytes: Bridging the gap between solid and liquid electrolytes for Zinc-Ion batteries

Chemical Engineering Journal, Год журнала: 2025, Номер 514, С. 162994 - 162994

Опубликована: Май 1, 2025

Язык: Английский

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Subzero Temperature Operation of Aqueous Zn Metal Batteries by Tailoring Electrolyte Solvation Structure

ACS Energy Letters, Год журнала: 2025, Номер unknown, С. 2650 - 2659

Опубликована: Май 8, 2025

Язык: Английский

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Functionally Segregated Ion Regulation Enables Dual Confinement Effect for Highly Stable Zinc‐Iodine Batteries

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 13, 2025

Abstract Conventional electrolytes in aqueous zinc‐iodine batteries struggle to suppress the shuttle effect and enhance interfacial stability, resulting high self‐discharge rate, low areal capacity, short cycle life. To address these issues, a dual‐confinement hydrogel electrolyte (DCHE) is designed simultaneously stabilize iodine cathode zinc anode at capacities via functionally segregated ion regulation strategy. As for cathode, anion‐functional groups DCHE repel polyiodides, while cation‐functional adsorb those that escape repulsion, thereby reinforcing suppression of polyiodide migration toward anode. This dual confinement effect, validated by theoretical simulations situ characterization, effectively mitigates effect. Additionally, hydrophilic zincophilic functional regulate hydrogen‐bond network Zn 2+ flux, strengthening electrochemical stability result, Zn//ZnI 2 cell assembled with delivers practical capacity 4.5 mAh cm −2 achieves record‐long lifespan exceeding 6000 h 88.9% retention 100 mA g −1 . Furthermore, single‐layer pouch exhibits good mechanical retaining 80% its after cycles 90° bending. work highlights importance advancing high‐performance batteries.

Язык: Английский

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A novel water-reducer-based hydrogel electrolyte for robust and flexible Zn-I2 battery

Energy storage materials, Год журнала: 2024, Номер unknown, С. 103981 - 103981

Опубликована: Дек. 1, 2024

Язык: Английский

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Achievement of advanced alkaline Ni-Zn batteries with good durability at a high areal capacity of 10 mAh cm−2 via the synergistic regulation of dual electrolyte additives

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 155757 - 155757

Опубликована: Сен. 1, 2024

Язык: Английский

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Multifunctional zinc-nickel alloy enabling high-performance aqueous zinc ion batteries

Journal of Alloys and Compounds, Год журнала: 2024, Номер 1005, С. 176159 - 176159

Опубликована: Авг. 25, 2024

Язык: Английский

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High Hydrophilic/Zincophilic Interpenetrating Double-Network Hydrogel Electrolyte Constructing Stable Organic–Inorganic Anode Interface toward Nickel–Zinc Batteries

Nano Energy, Год журнала: 2024, Номер unknown, С. 110595 - 110595

Опубликована: Дек. 1, 2024

Язык: Английский

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Achieving Uniform Deposition of Zn with Amide Additives for Metal Anodes Stabilization

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 26, 2024

The practical applications of aqueous zinc-ion batteries (AZIBs) are hindered by detrimental effects such as dendrites formation at the Zn metal anode interface and parasitic side reactions induced H2O. Hence, we propose adding amide additives to sulfate electrolyte (ZSO) regulate composition properties electrolytes, thereby stabilizing interface. Different molecules containing formamide (FA), acetamide (AA), or trifluoroacetamide (TFA) discussed. polar C═O group shared can interact with Zn2+, forming their solvation shells. also facilitate transport Zn2+ increase conductivity electrolytes. Additionally, H2O through hydrogen bonds limit erosion active on anode. unique –H, −CH3, −CF3 groups result in different polarities varying numbers interaction sites leading some differences protective stability lifespan Zn||Zn assembled electrolytes have significantly improved, especially those TFA. Moreover, Zn||NH4V4O10 full cells demonstrate remarkable capacity retention, overall performance has been enhanced.

Язык: Английский

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Multifunctional electrolyte additives enabled adaptable interface toward stabilizing Zn metal anodes

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 158737 - 158737

Опубликована: Дек. 1, 2024

Язык: Английский

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