Strong Dipole Inner Salt Molecule as Interface Ion Bridge for Rechargeable Aqueous Zn-Anode Batteries

The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 4097 - 4106

Published: April 17, 2025

Aqueous electrolyte additives are effective to improve the Zn anode performance, but their structural effect on electric double layer and plating remains elusive. By comparing several with varied compositions polarities, we reveal that dipole moment plays an important role in modulating electrode interface, while zincophilic functional groups crucial stripping/plating kinetics. A strongly dipolar inner salt, L-α-glycerylphosphorylcholine, is screened as a favorable additive stabilize hydrophobic surface of act Zn2+-migration bridge for fast desolvation. An aqueous 2 M ZnSO4 containing 75 mM L-α-glycerylphosphorylcholine results restriction parasitic hydrogen evolution, zinc sulfation hydroxylation, dendrite formation. Consequently, anodes achieve high Coulombic efficiency 99.8% Zn||Cu cells at 1 mA cm-2 sustain 1800 h cycling 50% depth discharge 3 cm-2. This study underscores screening mechanistic understanding salt formulate better electrolytes.

Language: Английский

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Ion-exchange induced statically activated zinc-containing hydroxyapatite interface toward stable zinc metal anodes

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 644, P. 237049 - 237049

Published: April 18, 2025

Language: Английский

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Electronic Conductive Metal–Organic Frameworks for Aqueous Rechargeable Zinc‐Ion Battery Cathodes: Design, Progress, and Prospects

Carbon Energy, Journal Year: 2025, Volume and Issue: unknown

Published: April 25, 2025

ABSTRACT Zinc‐ion batteries (ZIBs) have significant potential for advancements in energy storage systems owing to their high level of safety and theoretical capacity. However, ZIBs face several challenges, such as cathode capacity degradation short cycle life. Ordinary metal–organic frameworks (MOFs) are characterized by specific surface areas, large pore channels, controllable structures functions, making them suitable use ZIB cathodes with good performance. the insulating properties MOFs hinder further development. In contrast, electronic conductive (EC‐MOFs) show conductivity, which facilitates rapid electron transport ameliorates charging discharging efficiency ZIBs. This paper introduces unique conduction mechanism EC‐MOFs elaborates various strategies constructing conductivity stability. Additionally, synthesis methods EC‐MOF‐based materials elucidated. Finally, this presents a summary outlook on cathodes. review provides guidance designing applying other devices.

Language: Английский

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Regulating the gradient water distribution via hydro-philic/phobic compositional design in ionogels for stable zinc ion batteries

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162991 - 162991

Published: April 1, 2025

Language: Английский

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Insight into Aqueous Electrolyte Additives: Unraveling Functional Principles, Electrochemical Performance, and Beyond

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(19), P. 9939 - 9956

Published: Jan. 1, 2024

Aqueous electrolyte additives enhance the cycling stability of zinc-ion battery by inhibiting corrosion, zinc dendrite, and hydrogen evolution. This review examines mechanisms, challenges, future advancements toward commercializing AZIBs.

Language: Английский

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