Engineering vanadium vacancies to accelerate ion kinetics for high performance zinc ion battery

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 684, P. 439 - 448

Published: Jan. 7, 2025

Language: Английский

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Design of asymmetric electrolytes for aqueous zinc batteries

Communications Chemistry, Journal Year: 2025, Volume and Issue: 8(1)

Published: Jan. 24, 2025

Aqueous Zn batteries are gaining increasing research attention in the energy storage area due to their intrinsic safety, potentially low cost and environmental friendliness; however, zinc dendrite formation, corrosion, passivation hydrogen evolution reaction induced by water at anode side, materials dissolution as well poor kinetics cathode side aqueous systems, seriously shorten cycling life decrease density of greatly hinder development. Recent advancements asymmetric electrolytes with various functions promising overcome such challenges for same time. It has been proved that applications show significant contributions field zinc-based suppressing reactions while maintaining electrochemical performance satisfy both cathode. Therefore, this perspective summarizes recent electrolytes' design outlines opportunities future challenges, expecting continued area. great interest thanks cost, eco-friendliness, but undesirable chemical on sides significantly life. Here, authors discuss promise performance.

Language: Английский

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Organic Molecular Amino Acids Additives Containing Amide Groups for Uniform Zinc Deposition in Aqueous Zinc Ion Batteries

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 9, 2025

Aqueous Zn-metal batteries have been considered as a potentially sustainable energy storage device. They often suffer from poor reversibility and cyclability due to metallic Zn dendrites parasitic reactions. However, the previous perspectives mechanisms, coupled with their intricate functional groups for dendrite growth, H2 evolution, metal corrosion, render selection criteria of electrolyte additives inherently ambiguous. Herein, it takes amino acids an example detailed explored impact three typical ─NH2, ─COOH, ─CO─NH2. It is identified that primary determinant amide can be used active sites refine Zn2+ ion solvation structure promote deposition. At metal-electrolyte interface, chemisorption onto surface anode inhibits hydrogen evolution facilitates planar deposition Zn. As result, Zn||Zn cell optimal group shows remarkable cycling durability under current density 10 mA cm-2. When combined NH4V4O10 cathode, assembled coin retains ≈60% its capacity after 500 cycles. This molecule additive, emphasize role in fine-tuning structures Zn/electrolyte interface electrochemical properties.

Language: Английский

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Constructing Autoregulative Electric Double Layer Through Dielectric Effect Toward Fast Charging Zinc Metal Anode

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

Published: Feb. 19, 2025

Abstract The inhomogeneous dendrite growth and parasitic side reactions of Zn anodes as well its sluggish solvation/de‐solvation kinetics severely hinder the practicalization fast charging Zn‐ion batteries. Regulating electric double layer (EDL) structure is an effective strategy to address these issues. Herein, a perovskite dielectric ZnTiO 3 (ZTO) designed on anode construct autoregulative EDL for achieving capability. ZTO can spontaneously generate surface charge with external voltage regulate structure, which results in increased/decreased capacitance under plating/stripping potential respectively, leading promoted 2+ rapid reaction kinetics. Meanwhile, H 2 O‐insufficient environment created by self‐regulated uniform field prevent during deposition process. Attributed feature, ZTO@Zn exhibits excellent cycle stability over 2850 h at 1 mA cm −2 symmetrical cells. Even high current density 50 , it still stable 230 h. Additionally, assembled ZTO@Zn//AC supercapacitor demonstrates ultralong lifetime 140 000 cycles 5 A g −1 . This work provides regulation realize capability metal practical application.

Language: Английский

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Building Powerful Zinc‐Ion Hybrid Capacitors by an Energy Drink‐Inspired Strategy

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Abstract Numerous modification strategies have been proposed to enhance the performance of Zn anode and carbon cathode in aqueous zinc‐ion hybrid capacitors (ZIHCs). However, one efficient strategy modify both is still lacking. Herein, taurine (Tau), key ingredient energy drinks, used as electrolyte additive precursor for ZIHCs simultaneously. As additive, Tau achieves preferential growth (002) plane by preferentially adsorbing on other crystal planes. Moreover, accelerates 2+ transference kinetics regulating solvation structure constructs a functional solid interphase layer, enabling suppressed hydrogen evolution, inhibited corrosion reaction, dendrite‐free deposition. The Zn//Zn cells using Tau‐modified·ZnSO 4 (Tau‐ZSO) can stably work 1000 h at 76.95% depth discharge room temperature 5200 −10 °C. Meanwhile, taurine‐derived (Tau‐C) exhibits N, S heteroatom doping, hierarchical porous structure, high specific surface area, which contributes capacity. By Tau‐C cathode, limited (10 µm), Tau‐ZSO electrolyte, assembled demonstrate reduced polarization capacities (119.4 mA g −1 under 3 A 80.0 1 °C) with density 101.1 Wh kg long lifetime (operating over 2000 cycles).

Language: Английский

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Suppressing Hydrogen Evolution and Dendrite Formation on a Zn Anode by Coating In₂O₃ with Tailored Affinity to H* and Zn*

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

To suppress the hydrogen evolution reaction (HER) and dendrite formation on Zn anode in aqueous Zn-ion batteries, a submicrometer In2O3 coating (referred to as Zn@In2O3) was constructed via magnetron sputtering. Density functional theory (DFT) experimental data show that suppresses HER because of its weaker interactions with H* compared Zn, inhibiting Volmer step. At same time, exhibits moderate affinity for Zn*, higher than but lower at In2O3-Zn interface, thus facilitating desolvation hydrated Zn2+ ions while promoting deposition substrate beneath coating. The resultant suppression side reactions growth significantly enhance reversible plating/stripping Zn. optimized Zn@In2O3 stably cycles over 6400 h low voltage hysteresis 9.5 mV 1 mA cm-2 mAh symmetric cells. average Coulombic efficiency is increased from 95.8 99.6% owing Moreover, when coupled Mn0.15V2O5·nH2O cathode, battery maintains capacity retention 78.6% after 2000 5 A g-1. This facile economical modification anodes provides an idea realizing practical application AZIBs.

Language: Английский

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Reinforced Chitosan Polymer Electrolyte for Long‐Life and Robust Laminated Li‐Zn Structural Batteries

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

Published: March 7, 2025

Abstract Aqueous zinc (Zn)‐based structural batteries, combining electrochemical energy storage with mechanical load‐bearing capabilities, are promising for next‐generation electric vehicle due to their eco‐friendly and safe nature. However, challenges such as dendrite formation, anode corrosion, parasitic reactions limits practical application. Polymer electrolytes, particularly hydrogels, can mitigate these limitations, but typically possess poor properties that jeopardizes robustness. This article presents cellulose nanofibrils (CNF) reinforced chitosan a novel polymer electrolyte system aqueous Zn‐based batteries. Chitosan matrix, hydratable plastic superior manipulate solvation sheath of Zn 2 ⁺ ions enhance battery performance. When combined CNF reinforcement, ChitosanCNF forms robust, multifunctional material. A chitosan‐based glue improves the interface between electrodes in Zn||ChitosanCNF‐4||LiMn O 4 (LMO)‐Carbon Fiber (CF) laminated battery, displaying excellent performance over 4500 h cycling stability 90% capacity retention. The lamination process also strengthens achieving an impressive tensile modulus ≈8.48 GPa. Zn||ChitosanCNF‐4||LMO‐CF is highly deformation‐resistant, abuse‐tolerant, exhibits minimal self‐discharge, making it adaptable complex configurations without additional support. Its integrity space efficiency allow seamless integration into infrastructure, solution low‐cost, sustainable, high‐performance storage.

Language: Английский

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Representative By‐Products of Aqueous Zinc‐Vanadium Batteries: Origins, Roles, Strategies, and Prospects

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

Published: March 3, 2025

Abstract Aqueous zinc‐ion batteries (AZIBs) are of interest in next‐generation energy storage applications owing to their safety, environmental friendliness, and cost‐effectiveness. Vanadium‐based oxides promising cathodes for AZIBs due appropriate structure multielectron redox processes. Although hundreds studies devoted understanding the mechanisms developing high‐performance vanadium‐based cathodes, many puzzles controversies still exist, especially regarding two representative by‐products, basic zinc salt (BZS) pyrovanadate (ZVO). BZS ZVO often observed on cathode anode during cycling, directly affecting battery performance. However, by‐products’ controversial unclassified insights unclear have severely limited Zn‐V batteries’ progress. Therefore, this review aims exhaustively elucidate “past present” by‐products following a logical sequence origin, role, inhibition strategy, prospect. Notably, incorporates substantial comments understandings long‐neglected issues related BZS‐related ZVO‐related dissolution mechanisms. This is expected provide scientific guidelines future optimization commercialization batteries.

Language: Английский

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Establishing Ohmic contact with ultra-thin semiconductor layer through magnetron sputtering for dendrite-free Zn metal batteries

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 690, P. 137294 - 137294

Published: March 15, 2025

Language: Английский

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Anti-passivation of Commercial Zn Anodes by Self-deprotonation Additives for Aqueous Zn Metal Batteries

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104189 - 104189

Published: March 1, 2025

Language: Английский

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