A Trifunctional Electrolyte Enables Aqueous Zinc Ion Batteries with Long Cycling Performance

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(30)

Published: March 25, 2024

Abstract Aqueous zinc ion batteries hold promise as alternative systems to lithium‐based batteries. However, practical development faces critical challenges due parasitic side reactions and dendrite growth in anodes. While introducing electrolyte additives is promising, monofunctional offer limited protection the anode from a single aspect. Herein, disodium succinate additive presented establish hydrophobic zincophilic dual electric layer structure on Zn surface, regulate solvation of 2+ , act pH buffer during cycling. As result, symmetrical cell with an containing 0.2 m SADS shows durable life over 2200 h, Zn||MnO 2 full still maintains 80% capacity retention after 1000 cycles. In addition, both show wide applicability match NVO I cathode. This work provides low‐cost multifunctional additive, facilitating high‐performance aqueous

Language: Английский

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Construction of a Composite Sn‐DLC Artificial Protective Layer with Hierarchical Interfacial Coupling Based on Gradient Coating Technology Toward Robust Anodes for Zn Metal Batteries

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(38)

Published: July 7, 2024

Abstract Developing a robust zinc (Zn) anode, free from Zn dendrites and unwanted side reactions, relies on designing durable efficient interfacial protection layer. In this study, gradient coating technology is employed to construct hierarchically structured composite of Sn with diamond‐like carbon (DLC/Sn‐DLC) as an artificial protective The DLC framework endows DLC/Sn‐DLC layer high stability adaptability, achieving long‐term the anode–electrolyte interface. gradual‐composite Sn, its Sn─O─C interface chemical bonds, facilitates rapid charge transfer offers ample zincophilic sites at base, promoting uniform 2+ reduction reaction deposition. Additionally, exhibits “lotus effect” favorable hydrophobic properties, preventing water‐reduced reactions. Leveraging structural design synergistic cooperation DLC/Sn‐DLC@Zn electrode demonstrates remarkable plating/stripping reversibility, eliminating Notably, under current density 10 mA cm −2 , anode‐based symmetrical cell stable operation for over 1550 h, low nucleation overpotential 101 mV. DLC/Sn‐DLC@Zn||Mn 3 O 4 ‐CNTs full battery delivers capacity 109.8 mAh after 5800 cycles 2 A g −1 pouch shows potential energy storage applications.

Language: Английский

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Electrolyte Additive Strategies for Safe and High-Performance Aqueous Zinc-Ion Batteries: A Mini-Review

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(14), P. 12510 - 12527

Published: July 4, 2024

With outstanding safety and economic benefits, aqueous zinc-ion batteries (ZIBs) represent a highly promising energy system. As the "blood" of ZIBs, solid (electrode)/liquid (electrolyte) interface reactions transport rate zinc ions in electrolyte are crucial fields for long-term ZIBs. However, parasitic dendrite growth at electrode/electrolyte hinder practical application Thus, adjusting composition is valuable to reduce active-H2O molecules solvation structure realize textured anode. In this mini-review, electrochemical reaction dilemmas interfaces modification mechanism additives first summarized. Furthermore, we compare charge transfer storage methods among various additives. Notably, effects plating/stripping textures ((100), (101) (002) crystal planes) on reversibility metal anodes highlighted, providing more intuitive strategy epitaxial metal. Finally, specific applications perspectives ZIBs with outlined guide next-generation efficient storage.

Language: Английский

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Anti-dendrite separator interlayer enabling staged zinc deposition for enhanced cycling stability of aqueous zinc batteries

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 2, 2025

Aqueous zinc ion batteries exhibit great prospects due to their low cost and high safety, while lifespan is limited by severe dendritic growth problems. Herein, we develop an anti-dendrite hot-pressing separator interlayer through a mass-producible strategy, spreading metal-organic framework (MOF) precursor on nonwoven matrix followed simple process. The in situ modification of MOF crystals fiber surface processes abundant nitrogenous functional groups specific area (190.8 m2 g−1) with strong attraction Zn2+. These features contribute staged deposition behavior promote uniform nucleation at concentrations two-dimensional grain concentrations. Consequently, Zn | |Zn symmetrical cells demonstrate cycle lives 3000 hours 2 mA cm−2, mAh cm−2. Moreover, |I2 pouch realizes 840 cycles capacity retention 90.9% final discharge 110.6 25 °C. Zinc aqueous zinc-ion influenced separators. Here, authors introduce MOF-modified regulate Zn2+ concentration two stages via groups, reducing crystal nucleus radius ensuring deposition.

Language: Английский

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Accelerating Desolvation Process and Achieving Dendrite‐Free Zn Anode Via Dielectric Filler‐assisted Artificial Hybrid Interphase

Advanced Sustainable Systems, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 2, 2025

Abstract Aqueous zinc‐ion batteries (AZIBs) have garnered significant interest for their potential in large‐scale energy storage, attributed to high safety and low cost. Nonetheless, issues such as limited cycling lifespan coulombic efficiency (CE) associated with dendrite formation uncontrollable side reactions on the Zn metal anode pose challenges that restrict practical applications. Herein, a dielectric filler‐assisted artificial hybrid interphase is constructed surface address faced by aqueous electrolytes. TiO 2 nanoparticles special properties promote solvation process carboxymethyl cellulose (CMC) acts physical barrier suppressing adverse blocking dendrite. Consequently, symmetric cell using modified zinc achieves prolonged cycle life of over 2500 h at 1 mAh cm −2 . Furthermore, full vanadium‐based cathode delivers excellent electrochemical performance (over 600 cycles A g −1 ). This research offers an efficient scalable approach enhance anodes.

Language: Английский

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Polyelectrolyte Membrane Enables Highly Reversible Zinc Battery Chemistry via Immobilizing Anion and Stabilizing Water

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

The integration of water-based electrolytes into zinc-ion batteries encounters challenges due to the limited voltage window water, interfacial side reactions mobile counterions, and growth zinc metal (Zn0) dendrites during charge. In this study, we introduce a nonfluorinated, cation-conducting polyelectrolyte membrane (PEM) designed alleviate these by suppressing reactivities both water counterions. This PEM forms hydrogen bonds with molecules through its proton-accepting chains, thus shifting lowest unoccupied molecular orbital (LUMO) energy from −0.37 −0.14 eV inducing negative shift in onset potential for evolution 110 mV. Additionally, it immobilizes counteranions onto polymer backbones via covalent bonding, hence making Zn2+ transference number nearly unity (0.96). Meanwhile, high modulus establishes solid-state diffusion barrier homogenize flux, leading 3D in-plane compact Zn0 plating within (002) plane. Atomic resolution scanning transmission electron microscopy (STEM) reveals corrosion-free deposition without electrolyte degradation, while operando transition X-ray (TXM) further illustrates real-time dendrite-free process at 5 mA/cm2. Consequently, unique properties water-binding anion-tethering enable enhanced electrochemical performance employing highly fluorinated expensive anions. demonstrates durability 3800 h Zn0–Zn0 symmetric cells lifetime 6000 cycles Zn0–LiV3O8 full cells.

Language: Английский

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Interfacial double-coordination effect reconstructing anode/electrolyte interface for long-term and highly reversible Zn metal anodes

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 678, P. 772 - 782

Published: Sept. 7, 2024

Language: Английский

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Eutectic Network Synergy Interface Modification Strategy to Realize High‐Performance Zn‐I₂ Batteries

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(44)

Published: Aug. 13, 2024

Abstract Zn‐I 2 batteries suffer from uncontrollable shuttle effects of polyiodine ions (I 3 − and I 5 ) at the cathode/electrolyte interface side reactions induced by reactive H O anode/electrolyte interface. In this study, a hydrated eutectic electrolyte is designed that synergizes network functional interfacial adsorbed layer to develop high‐performance batteries. The can restrain active molecules in inhibit reaction effect Additionally, guides nucleation behavior Zn 2+ growth dendrites also separates zinc anode direct contact with corrosion. Theoretical calculation, situ Ultraviolet–visible spectroscopy (UV‐vis) Raman characterizations, visualization experiments demonstrate effectively inhibits shuttling improves reversibility deposition/stripping behavior. Consequently, battery maintain capacity 133 mAh g −1 after 5000 cycles C. This highly efficient synergistic strategy offers practical approach development advanced

Language: Английский

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Hybrid Molecular Sieve-Based Interfacial Layer with Physical Confinement and Desolvation Effect for Dendrite-free Zinc Metal Anodes

ACS Nano, Journal Year: 2024, Volume and Issue: 18(28), P. 18592 - 18603

Published: July 1, 2024

The side reactions and dendrite growth at the interface of Zn anodes greatly limit their practical applications in metal batteries. Herein, we propose a hybrid molecular sieve-based interfacial layer (denoted as Z7M3) with hierarchical porous structure for anodes, which contains 70 vol % microporous ZSM-5 sieves 30 mesoporous MCM-41 sieves. Through comprehensive dynamics simulations, demonstrate that mesopores (∼2.5 nm) can disordered diffusion free water molecules increase wettability toward aqueous electrolytes. In addition, micropores (∼0.56 optimize Zn2+ solvation structures by reducing bonded molecules, simultaneously decrease constraint force solvated to ions, thus promoting penetrability kinetics ions Z7M3. synergetic effects from maintain constant concentration on surface electrode during deposition, contributing dendrite-free anodes. Consequently, Z7M3-coated electrodes achieved excellent cycling stability both half full cells.

Language: Английский

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Recent progress on modification strategies of both metal zinc anode and manganese dioxide cathode materials for high-performance aqueous zinc-ion batteries

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 523, P. 216255 - 216255

Published: Oct. 4, 2024

Language: Английский

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