Ternary Gel Electrolyte Enabling Wide‐Temperature and High‐Rate Performance in Aqueous Zinc‐Ion Batteries DOI

Jinpeng Guan,

Yongbiao Mu,

Xiyan Wei

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 7, 2025

Abstract Aqueous zinc‐ion batteries (AZIBs) offer significant potential for grid‐scale energy storage due to their cost‐effectiveness, safety, and eco‐friendliness. However, interfacial instability parasitic reactions under extreme temperatures (−20 60 °C) severely degrade cyclability. To address these limitations, a ternary copolymer gel electrolyte (PAM‐T‐S) is developed through copolymerization of acrylamide (AM) with [2‐(methacryloyloxy)ethyl]dimethyl(3‐sulfopropyl)ammonium betaine (SPE) thymine (Thy), forming multidimensional crosslinked network. Thy immobilizes free water molecules suppress activity, while SPE establishes rapid Zn 2+ transport pathways, boosting ionic conductivity. Synergistically, reconstruct the solvation sheath induce hybrid organic–inorganic solid interphase (SEI) via preferential adsorption decomposition, effectively inhibiting dendrite growth side reactions. Consequently, Zn||Zn symmetric cells PAM‐T‐S achieve long lifespans 3200 h at 1 mA cm −2 /1 mAh 1000 20 , along exceptional wide‐temperature performance (3000 −20 °C 820 °C, ). The Zn||VO 2 full cell retains 87.8% capacity after 2000 cycles 5C, highlighting its high‐rate durability. This multifunctional hydrogel design advances AZIBs toward reliable operation across broad temperature ranges, providing scalable strategy next‐generation systems.

Язык: Английский

Ternary Gel Electrolyte Enabling Wide‐Temperature and High‐Rate Performance in Aqueous Zinc‐Ion Batteries DOI

Jinpeng Guan,

Yongbiao Mu,

Xiyan Wei

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 7, 2025

Abstract Aqueous zinc‐ion batteries (AZIBs) offer significant potential for grid‐scale energy storage due to their cost‐effectiveness, safety, and eco‐friendliness. However, interfacial instability parasitic reactions under extreme temperatures (−20 60 °C) severely degrade cyclability. To address these limitations, a ternary copolymer gel electrolyte (PAM‐T‐S) is developed through copolymerization of acrylamide (AM) with [2‐(methacryloyloxy)ethyl]dimethyl(3‐sulfopropyl)ammonium betaine (SPE) thymine (Thy), forming multidimensional crosslinked network. Thy immobilizes free water molecules suppress activity, while SPE establishes rapid Zn 2+ transport pathways, boosting ionic conductivity. Synergistically, reconstruct the solvation sheath induce hybrid organic–inorganic solid interphase (SEI) via preferential adsorption decomposition, effectively inhibiting dendrite growth side reactions. Consequently, Zn||Zn symmetric cells PAM‐T‐S achieve long lifespans 3200 h at 1 mA cm −2 /1 mAh 1000 20 , along exceptional wide‐temperature performance (3000 −20 °C 820 °C, ). The Zn||VO 2 full cell retains 87.8% capacity after 2000 cycles 5C, highlighting its high‐rate durability. This multifunctional hydrogel design advances AZIBs toward reliable operation across broad temperature ranges, providing scalable strategy next‐generation systems.

Язык: Английский

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