Dissolution, solvation and diffusion in low-temperature zinc electrolyte design

Nature Reviews Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 8, 2025

Язык: Английский

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Functional Hydrogels for Aqueous Zinc‐Based Batteries: Progress and Perspectives

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 10, 2024

Aqueous zinc batteries (AZBs) hold great potential for green grid-scale energy storage due to their affordability, resource abundance, safety, and environmental friendliness. However, practical deployment is hindered by challenges related the electrode, electrolyte, interface. Functional hydrogels offer a promising solution address such owing broad electrochemical window, tunable structures, pressure-responsive mechanical properties. In this review, key properties that functional must possess advancing AZBs, including strength, ionic conductivity, swelling behavior, degradability, from perspective of full life cycle in AZBs are summarized. Current modification strategies aimed at enhancing these improving AZB performance also explored. The design considerations integrating with electrodes interface discussed. end, limitations future directions bridge gap between academia industries successful

Язык: Английский

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An Aqueous Zn||Br2 Battery by Electrolyte Activating the Positive Charge of Cyanidin Additive to Resolve Challenges of Both Anode and Cathode

Energy storage materials, Год журнала: 2025, Номер unknown, С. 104341 - 104341

Опубликована: Май 1, 2025

Язык: Английский

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Polydentate Ligand Stabilizes Electrolyte and Interface Layer for Anti‐Corrosion and Selective‐Deposited Zn Metal Aqueous Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 18, 2025

Abstract Zinc anode suffers from tough issues such as dendrite, corrosion, and hydrogen evolution, which lead to premature battery failure thus restrict the practical application of aqueous zinc‐metal batteries (ZMABs). Herein, a polydentate‐ligand tactic is introduced reconstruct solvation structure, improve corrosion resistance, trigger selective dendrite‐free deposition via β‐Alanyl‐L‐histidine (AH). With abundant amino, amide, carboxyl, imidazolyl groups, AH shows chelation effect, partially substitutes solvated SO 4 2− enters Zn 2+ sheath facilitate desolvation. Those groups also increase strong H‐bond proportion electrolyte, stabilizing water suppressing evolution reactions. Moreover, with multisite coordination, preferentially adsorbs on Zn(002) induce stable functional C, N, O, S‐rich solid‐electrolyte interphase zincophilic hydrophobic properties. It homogenizes both electric field concentration guides preferential growth along (002), realizing anode. As result, obtained electrolyte exhibits high CE 99.28%, extended stability over 6000 h, long lifespan 1000 cycles for Zn//MnO 2 batteries. This work offers novel design strategy additive toward stabilization anodes ZMABs.

Язык: Английский

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Hydrophilic or Hydrophobic: Revealing the Role of an Ionic Liquid by an Interfacial Hydrogen Bond in an Aqueous Zinc Battery

Nano Letters, Год журнала: 2025, Номер unknown

Опубликована: Апрель 28, 2025

Hydrogen evolution reaction (HER) on Zn-metal constrains the development of aqueous zinc batteries. Ionic liquid (IL) additives are proposed to isolate interfacial H2O and suppress HER. However, whether addition either hydrophilic or hydrophobic ILs can effectively HER seems "contradictory". Herein, although disproportionation hydrophilic/hydrophobic properties leads an content difference, we demonstrate that both present a consistent influence configuration hydrogen bonds. Specifically, they decrease amount weak bonds increase number strong simultaneously, which makes deprotonation (related HER) more difficult. In addition, by capturing dynamic through in situ spectroscopy, successfully correlate with detrimental parasitic surface. This study enhances understanding interface engineering from perspective bond evolution.

Язык: Английский

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Hydrogel Electrolyte Film with Low‐Temperature Adaptability for Flexible Quasi‐Solid‐State Batteries

Small, Год журнала: 2025, Номер unknown

Опубликована: Апрель 28, 2025

Abstract Considering the merits and shortcomings of conventional hydrogels in terms low‐temperature adaptability, a new type hydrogel electrolyte, reinforced by hydrogen bonding containing just 6.8% water, is fabricated. This film exhibits high ionic conductivity 3.9 mS cm −1 at room temperature maintains its flexibility even −40 °C. The hydrogel‐based quasi‐solid‐state cell shows good cyclic stability performance, retaining 80.3% initial capacity after 800 cycles. Furthermore, it performs well sub‐zero conditions, 89.6% −30 °C (0.5C) releasing 56.4 mAh g (0.1C). Notably, LTE‐based flexible full under 180° bending 15% stretching. can be attributed to polymer network with hydrophilic groups, which disrupts hydrogen‐bond networks original water molecules forms abundant interactions between chains molecules. These are crucial for improving adaptability. Overall, this work offers promising approach creating adaptable that used develop wearable energy‐storage devices.

Язык: Английский

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Tailoring Cold‐Resilient Electrolytes Driven by Mechanisms Underlying Ice Melting for Cryogenic Zn Batteries

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 9, 2025

Abstract The freezing and melting behaviors of aqueous solutions are strongly influenced by the presence chemical substances, yet criteria for screening effective chemicals remain poorly defined. This study introduces a novel perspective to designing cold‐resilient electrolytes focusing on mechanisms underlying ice identifying key criteria, providing new insights into how specific can enhance cryogenic properties solutions. A series theoretical experimental tools highlight its superior low‐temperature tolerance endowed screened solute, pouch full cell Zn//pyrene‐4,5,9,10‐tetraone with cathode loading up 7.5 mg cm −2 delivers an impressively high capacity 110 mAh g −1 excellent rate performance at −40 °C. special work would enrich design concepts expand paradigms developing water‐based energy storage systems in extreme environments.

Язык: Английский

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A dilute and non-flammable electrolyte engineering enables stable SEI for low-temperature zinc batteries

Energy storage materials, Год журнала: 2025, Номер unknown, С. 104374 - 104374

Опубликована: Июнь 1, 2025

Язык: Английский

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