Surface Tension‐Derived Electrical Double Layer Modification Enables Practical Zinc‐Ion Pouch Cells

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 2, 2025

Abstract Interface issues such as parasitic reactions and dendrite growth have long been major obstacles hindering the longevity of aqueous zinc‐ion batteries (AZIBs). The quest for more effective strategies to regulate highly active interface remains a focal point in AZIBs. Herein, novel interface‐targeted additive N‐Acetoacetylmorpholine (NHM) is introduced, by lowering interfacial tension modifying electrical double layer, improve performance This reconfiguration results H 2 O‐poor inner Helmholtz plane, which suppresses reactions, accelerates kinetics, fosters uniform zinc deposition. Consequently, anode demonstrates impressive cycling durability, exceeding 3800 h plating/stripping process 400 steady cycle at high depth discharge (DOD) 60%. Zn/NH 4 V O 10 full cell superior performance, achieving 80% capacity retention after 1500 cycles. Moreover, pouch cells with highloading cathodes (13.5 mg cm −2 ) can maintain 70% 300 cycles 0.5 A g −1 . controlled N/P ratio (2.63:1) shows excellent stability 130 These findings provide valuable insights into design offer promising enhancing practicality

Язык: Английский

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In-Situ Hydrophobic Protective Layer for Suppressing Hydrogen Evolution Corrosion and Enabling High-Efficiency Silicon-Air Batteries with Wide Temperature Adaptability

Composites Part B Engineering, Год журнала: 2025, Номер unknown, С. 112456 - 112456

Опубликована: Март 1, 2025

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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Trace multi-site adenosine additive for high performance Zn-ion batteries

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162389 - 162389

Опубликована: Апрель 1, 2025

Язык: Английский

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Zinc-Ion Coordinated Inorganic Silicone Quasi-Solid Electrolyte for Low Self-Discharge and Stable Zinc Metal Batteries

Electrochimica Acta, Год журнала: 2025, Номер 530, С. 146409 - 146409

Опубликована: Май 6, 2025

Язык: Английский

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