Aqueous Electrolyte With Weak Hydrogen Bonds for Four‐Electron Zinc–Iodine Battery Operates in a Wide Temperature Range

Advanced Materials, Год журнала: 2024, Номер 36(32)

Опубликована: Июнь 4, 2024

Abstract In the pursuit of high‐performance energy storage systems, four‐electron zinc–iodine aqueous batteries (4eZIBs) with successive I − /I 2 + redox couples are appealing for their potential to deliver high density and resource abundance. However, susceptibility positive valence hydrolysis instability Zn plating/stripping in conventional electrolyte pose significant challenges. response, polyethylene glycol (PEG 200) is introduced as co‐solvent m ZnCl solution design a wide temperature electrolyte. Through comprehensive investigation combining spectroscopic characterizations theoretical simulations, it elucidated that PEG disrupts intrinsic strong H‐bonds water by global weak PEG–H O interaction, which strengthens O─H covalent bond intensifies coordination 2+ . This synergistic effect substantially reduces activity restrain hydrolysis, facilitating kinetics, mitigating 3 formation smoothening deposition. The 4eZIBs optimized hybrid not only superior cyclability low fading rate 0.0009% per cycle over 20 000 cycles close‐to‐unit coulombic efficiency but also exhibit stable performance range from 40 °C −40 °C. study offers valuable insights into rational electrolytes 4eZIBs.

Язык: Английский

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Highly Reversible Zn Anode Design Through Oriented ZnO(002) Facets

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 21, 2024

Abstract The practical implementation of aqueous Zn‐ion batteries presents formidable hurdles, including uncontrolled dendrite growth, water‐induced side reactions, suboptimal Zn metal utilization, and intricate anode manufacturing. Here, large‐scale construction a highly oriented ZnO(002) lattice plane on (ZnO(002)@Zn) with thermodynamic inertia kinetic zincophilicity is designed to address such problems. Both theoretical calculations experiment results elucidate that the ZnO(002)@Zn possesses high chemical affinity, hydrogen evolution reaction suppression, dendrite‐free deposition ability due abundant oxygen species in its low mismatch Zn(002). These features synergistically promote ion transport enable homogeneous deposition. Consequently, displays stable prolonged cycling lifespan exceeding 500 h even under larger depth discharge (85.6%) realizes an impressive average Coulombic efficiency 99.7%. Moreover, efficacy also evident V 2 O 5 ‐cathode coin cells pouch not only capacity but exceptional stability. This integrated approach promising avenue for addressing challenges associated anodes, thereby advancing prospects battery technologies.

Язык: Английский

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Advanced cellulose-based materials toward stabilizing zinc anodes

Science China Chemistry, Год журнала: 2024, Номер 67(5), С. 1465 - 1484

Опубликована: Янв. 23, 2024

Язык: Английский

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Critical Solvation Structures Arrested Active Molecules for Reversible Zn Electrochemistry

Nano-Micro Letters, Год журнала: 2024, Номер 16(1)

Опубликована: Март 5, 2024

Aqueous Zn-ion batteries (AZIBs) have attracted increasing attention in next-generation energy storage systems due to their high safety and economic. Unfortunately, the side reactions, dendrites hydrogen evolution effects at zinc anode interface aqueous electrolytes seriously hinder application of zinc-ion batteries. Here, we report a critical solvation strategy achieve reversible electrochemistry by introducing small polar molecule acetonitrile form "catcher" arrest active molecules (bound water molecules). The stable structure [Zn(H

Язык: Английский

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Proton-selective coating enables fast-kinetics high-mass-loading cathodes for sustainable zinc batteries

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Март 8, 2024

Abstract The pressing demand for sustainable energy storage solutions has spurred the burgeoning development of aqueous zinc batteries. However, kinetics-sluggish Zn 2+ as dominant charge carriers in cathodes leads to suboptimal charge-storage capacity and durability Here, we discover that an ultrathin two-dimensional polyimine membrane, featured by dual ion-transport nanochannels rich proton-conduction groups, facilitates rapid selective proton passing. Subsequently, a distinctive electrochemistry transition shifting from sluggish -dominated fast-kinetics H + Faradic reactions is achieved high-mass-loading using membrane interfacial coating. Notably, NaV 3 O 8 ·1.5H 2 cathode (10 mg cm −2 ) with this coating exhibits ultrahigh areal 4.5 mAh state-of-the-art density 33.8 Wh m , along apparently enhanced cycling stability. Additionally, showcase applicability proton-selective different electrolytes, validating its universality developing reliable

Язык: Английский

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Zwitterionic materials for aqueous Zn-based energy storage devices: current developments and perspective

Energy Reviews, Год журнала: 2024, Номер 4(1), С. 100107 - 100107

Опубликована: Авг. 9, 2024

Aqueous Zn-based energy storage (AZES) devices are promising candidates for large-scale systems. Nevertheless, AZES still face some critical bottlenecks and challenges, including poor chemical stability of Zn anode a narrow operating voltage window aqueous electrolyte. Zwitterions typically organic salts in which cations anions covalently bonded. Zwitterionic materials have garnered considerable research attention the field electrochemical due to their solubility polar solvents, strong hydration ability, dipole formation transfer carriers. been shown achieve excellent effects on addressing issues devices, yet explorations with limited understanding functional mechanism design basis zwitterionic materials. Accordingly, this review discusses unique structure characteristics summaries applications mechanisms devices. Finally, challenges perspectives working optimization offered future research.

Язык: Английский

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Highly 002-Oriented Dendrite-Free Anode Achieved by Enhanced Interfacial Electrostatic Adsorption for Aqueous Zinc-Ion Batteries

ACS Nano, Год журнала: 2024, Номер 18(32), С. 21184 - 21197

Опубликована: Авг. 2, 2024

Rechargeable aqueous zinc-ion batteries (AZIBs) are gaining recognition as promising next-generation energy storage solution, due to their intrinsic safety and low cost. Nevertheless, the advancement of AZIBs is greatly limited by abnormal growth zinc dendrites during cycling. Electrolyte additives effective at suppressing dendrites, but there currently no additive screening criterion. Herein, we propose employing interfacial electrostatic adsorption strength ions for initial additives. Subsequently, dendrite-free plating achieved anionic surfactant sodium dodecyl benzenesulfonate (SDBS) enhance adsorption. The cycled anode exhibited a dense morphology high (002) orientation (

Язык: Английский

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Benchmarking Corrosion with Anionic Polarity Index for Stable and Fast Aqueous Batteries Even in Low‐Concentration Electrolyte

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract Despite aqueous electrolyte endowing batteries with the merits of safe operation, low‐cost fabrication, and high ionic conductivity, water‐induced corrosion, including spontaneous chemical electrochemical hydrogen evolution adversely affects lifespan rate capability. There is still a lack selection criteria for benchmarking corrosion behavior qualitatively. Through theoretical simulation, an anionic polarity index (API) tactic proposed to resist by manipulating interfacial solvated water concomitantly, thus realizing stable fast Zn (ZABs). As proof concept, zinc salt 0.5 m bis(4‐hydroxybenzenesulphonate) (Zn(HBS) 2 ) low‐API anion prioritized. Combined in situ spectroscopic analyses reveal that, even low‐concentration electrolyte, reduces inner Helmholtz plane, shielding dissociation. Meanwhile, their entering into solvation sheath 2+ lowers solvent‐separated ion pair, suppressing corrosion. The elaborated API‐screened endows plating kinetics 50 mA cm −2 (119.1 mV polarization), coulombic efficiency 99.8%, dendrite‐free cycling over 1600 h, prolonged 5000 cycles Zn‐V cell. results provide new metrics that can benchmark success ZABs large‐scale energy storage.

Язык: Английский

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Crowding Effect-Induced Zinc-Enriched/Water-Lean Polymer Interfacial Layer Toward Practical Zn-Iodine Batteries

ACS Nano, Год журнала: 2023, Номер 17(22), С. 23207 - 23219

Опубликована: Ноя. 14, 2023

Although the meticulous design of functional diversity within polymer interfacial layer holds paramount significance in mitigating challenges associated with hydrogen evolution reactions and dendrite growth zinc anodes, this pursuit remains a formidable task. Here, large-scale producible zinc-enriched/water-lean layer, derived from carboxymethyl chitosan (CCS), is constructed on anodes by integration electrodeposition targeted complexation strategy for highly reversible Zn plating/stripping chemistry. Zinc ions-induced crowding effect between CCS skeleton creates strong bonding environment squeezes moving space water/anion counterparts, therefore greatly reducing number active water molecules alleviating cathodic I3- attack. Moreover, as-constructed Zn2+-enriched substantially facilitate rapid Zn2+ migration through NH2-Zn2+-NH2 binding/dissociation mode molecule chain. Consequently, large-format symmetry cell (9 cm2) Zn-CCS electrode demonstrates excellent cycling stability over 1100 h without bulging. When coupled an I2 cathode, assembled Zn-I2 multilayer pouch displays exceptionally high capacity 140 mAh superior long-term cycle performance 400 cycles. This work provides universal to prepare production high-performance metal anode-based battery, analogous outcomes were veritably observed other metals (Al, Cu, Sn).

Язык: Английский

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Stable Solid‐State Zinc–Iodine Batteries Enabled by an Inorganic ZnPS₃ Solid Electrolyte with Interconnected Zn²⁺ Migration Channels

Advanced Functional Materials, Год журнала: 2023, Номер 34(3)

Опубликована: Окт. 9, 2023

Abstract Aqueous zinc–iodine (Zn–I 2 ) batteries, with their outstanding merits in safety, cost, and environmental friendliness, have received extensive attention. However, the unstable electrochemistry at electrode–electrolyte interface originating from free water results zinc dendrite growth, hydrogen evolution reaction (HER), polyiodide ions shuttle, hindering practical applications. Herein, solid‐state Zn–I batteries based on an inorganic ZnPS 3 (ZPS) electrolyte are developed to overcome inherent interfacial issues associated aqueous electrolytes. The electrolyte, a low Zn 2+ diffusion energy barrier of ≈0.3 eV, demonstrates exceptional ion conductivity 2.0 × 10 −3 S cm −1 (30 °C), which also satisfies high chemical/electrochemical stability mechanical strength. solid conduction mechanism, facilitated by bounded only grains, effectively suppresses HER shuttling. During cycling, ZnS functional layer is spontaneously formed anode/electrolyte interphase, promoting dendrite‐free deposition behavior more stable (002) crystal orientation. Consequently, configuration battery enables impressive reversible capacity 154.2 mAh g after 400 cycles 0.1 A . Importantly, compatibility confirmed Zn||CuS cell, indicating its potential as versatile platform for developing zinc‐ion (ZIBs).

Язык: Английский

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