Coupling of Mechanical, Self‐Healing, Adhesion, and High‐Ion Conducting Properties in Anti‐Freezing Hydrogel Electrolytes of Zinc Ion Batteries via Fe3+‐Carboxylate Coordination DOI
Yu Lin, Sijun Wang, Jing Huang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

Abstract Aqueous zinc‐ion batteries (AZIBs) based on hydrogel electrolytes are considered promising flexible power supplies owing to their intrinsic safety, competent volumetric energy density, and eco‐friendliness. However, severe mechanical deterioration of the caused by insufficient inter‐component contact, zinc (Zn) dendrites, freezing prevents commercialization. Herein, it is found that, doping a trace Fe 3+ ions afford ‐carboxylate supramolecular interaction, practicality an archetypal cellulose nanofiber‐reinforced electrolyte significantly improved in couple aspects, including three eight times increase tensile strength toughness without loss ion conducting ability (up 32 mS cm −1 ) being room‐temperature self‐healable strongly adhesive various battery components. Together with use anti‐freezing mixed Zn salt, resulting able deliver ultrahigh cycling reversibility (averaging 99.4%), great cyclability AZIBs (a high specific capacity 180 mAh g retention 81%), render operable under abuse conditions 180° folding, exposure liquid nitrogen, cutting–rehealing cycles. This work unlocks enormous potential chemistry development self‐healable, anti‐freezing, extreme‐environment‐adaptable gel for storage devices.

Language: Английский

Coupling of Mechanical, Self‐Healing, Adhesion, and High‐Ion Conducting Properties in Anti‐Freezing Hydrogel Electrolytes of Zinc Ion Batteries via Fe3+‐Carboxylate Coordination DOI
Yu Lin, Sijun Wang, Jing Huang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

Abstract Aqueous zinc‐ion batteries (AZIBs) based on hydrogel electrolytes are considered promising flexible power supplies owing to their intrinsic safety, competent volumetric energy density, and eco‐friendliness. However, severe mechanical deterioration of the caused by insufficient inter‐component contact, zinc (Zn) dendrites, freezing prevents commercialization. Herein, it is found that, doping a trace Fe 3+ ions afford ‐carboxylate supramolecular interaction, practicality an archetypal cellulose nanofiber‐reinforced electrolyte significantly improved in couple aspects, including three eight times increase tensile strength toughness without loss ion conducting ability (up 32 mS cm −1 ) being room‐temperature self‐healable strongly adhesive various battery components. Together with use anti‐freezing mixed Zn salt, resulting able deliver ultrahigh cycling reversibility (averaging 99.4%), great cyclability AZIBs (a high specific capacity 180 mAh g retention 81%), render operable under abuse conditions 180° folding, exposure liquid nitrogen, cutting–rehealing cycles. This work unlocks enormous potential chemistry development self‐healable, anti‐freezing, extreme‐environment‐adaptable gel for storage devices.

Language: Английский

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