Overcoming challenges of protonation effects induced by high isoelectric point amino acids through a synergistic strategy towards highly stable and reversible zinc electrode-electrolyte interface

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 674, P. 713 - 721

Published: June 24, 2024

Language: Английский

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ZnCoS/ZnCoLDH lamellar core-shell materials for high-performance asymmetric supercapacitors

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 110, P. 115250 - 115250

Published: Jan. 6, 2025

Language: Английский

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Multifunctional Crown Ether Additive Regulates Desolvation Process to Achieve Highly Reversible Zinc‐Metal Batteries

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

Published: Jan. 9, 2025

Abstract Aqueous zinc‐ion batteries have garnered significant attention due to their abundant materials, low production costs, and safety. However, these suffer from severe side reactions, which are closely associated with the presence of a substantial amount solvent at electrode surfaces. Herein, 1,4,7,10,13,16‐hexaoxacyclooctadecane (18‐crown‐6) is added electrolyte illustrate both theoretically experimentally its contribution rapid desolvation aspect. It shown that addition 18‐crown‐6 greatly facilitates solvated structure prevents collection molecules on surface zinc anode, thus inhibiting hydrogen precipitation reaction. also enhances transference number ions, makes interfacial electric field anode stable promotes orderly diffusion uniform nucleation Zn 2+ , inhibits growth dendrites. As result, containing as additives shows cycle life, Zn||Zn symmetric cell cycled for nearly 1700 h 1 mA cm −2 showing improvement in Coulombic efficiency. The assembled Zn||NH 4 V O 10 exhibits excellent electrochemical performance, reaching capacity 100.9 mAh g −1 even after 4000 cycles 10.0 A .

Language: Английский

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Unveiling the Failure Mechanism of Zn Anodes in Zinc Trifluorosulfonate Electrolyte: The Role of Micelle-like Structures

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(29), P. 20508 - 20517

Published: July 12, 2024

Zinc trifluorosulfonate [Zn(OTf)

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Superhydrophobic and Highly Flexible Artificial Solid Electrolyte Interphase Inspired by Lotus Effect Toward Highly Stable Zn Anode

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 6, 2024

Abstract Due to their cost‐effectiveness, high safety, and environmental friendliness, aqueous zinc‐ion batteries (AZIBs) are among the most promising technologies for next‐generation energy storage systems. Nonetheless, dendrite growth, hydrogen evolution, corrosion at zinc (Zn) anode severely hinder practical application. In this study, a combination of molecular self‐assembly engineering, squeegee coating, air spraying process is employed create superhydrophobic highly flexible artificial solid‐electrolyte‐interface layer on Zn (denoted as SFM/Zn). Self‐assembled monolayer triethoxy‐3‐aminopropylsilane optimizes 2+ migration kinetics. The interface, formed by polydimethylsiloxane (PDMS) trimethoxy(octadecyl)silane (OTS)‐modified nanosilicon dioxide particles, inhibits water‐related side reactions. Furthermore, PDMS serves dynamic adaptive interface anode, effectively alleviating “tip effect”. Consequently, SFM/Zn||SFM/Zn symmetrical cells enable reversible stable plating/stripping both ultralow current density (0.2 mA cm −2 ) ultrahigh (45 ). assembled Zn‐vanadium (SFM/Zn||NH 4 V O 10 cell deliver average Coulombic efficiency (nearly 100%) ultralong cycling stability (135.5 mAh g −1 after 500 cycles 5 A 173.2 1000 2 This innovative three‐layered strategy sheds new light designing durable high‐performance AZIBs.

Language: Английский

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Functional Aerogel Driven Synchronous Modulation of Zn²⁺ Interfacial Migration Behavior and Electrolyte Microenvironment Enables Highly Reversible Zn Anodes

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: June 3, 2024

Abstract Uncontrolled dendrite growth and electrolyte‐induced intricate parasitic reactions are two great challenges that hinder the commercial applications of aqueous zinc‐ion batteries. Herein, a synchronous modulation strategy for Zn 2+ interfacial migration behavior electrolyte microenvironment is proposed by constructing functional lanthanum hydroxide aerogel (LAG) interface layer on anode surface. The in situ derivation ion‐conducting zinc sulfate (ZHS) from LAG results spontaneous generation hierarchic during plating process, where high selectivity upper dense ZHS can limit SO 4 2− allow fast kinetics, while with well‐defined nanochannels near side homogenize distribution, thus leading to effective suppression both dendrites reactions. Additionally, pH acidic be synchronously regulated slightly soluble La(OH) 3 aerogel, further inhibiting corrosion HER. Consequently, modified delivers highly reversible plating/stripping low‐voltage hysteresis, areal‐capacity Zn||MnO 2 full cells demonstrate considerable electrochemical performances under utilization conditions. This aerogel‐driven provides new insight stabilizing metal anodes.

Language: Английский

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Enabling Gradient‐Structured Solid Electrolyte Interphase by a Hydrated Eutectic Electrolyte for High‐Performance Zn Metal Batteries

Small, Journal Year: 2024, Volume and Issue: unknown

Published: June 14, 2024

Abstract Aqueous Zn metal batteries are attracting tremendous interest as promising energy storage systems due to their intrinsic safety and cost‐effectiveness. Nevertheless, the reversibility of anodes (ZMAs) is hindered by water‐induced parasitic reactions dendrite growth. Herein, a novel hydrated eutectic electrolyte (HEE) consisting Zn(BF 4 ) 2 ·xH O sulfolane (SL) developed prevent side achieve outstanding cyclability ZMAs. The strong coordination between 2+ SL triggers feature, enabling low‐temperature availability HEEs. restriction BF − hydrolysis in system can realize favorable compatibility ‐based Besides, newly‐established solvation structure with participation SL, H O, , induce situ formation desirable SEI gradient B,O‐rich species, ZnS, ZnF offer satisfactory protection toward Consequently, HEE allows Zn||Zn symmetric cell cycle over 1650 h at mA cm −2 1 . Moreover, Zn||NH V 10 full deliver prolonged lifespan for 1000 cycles high capacity retention 83.4%. This work represents feasible approach elaborate design advanced next‐generation batteries.

Language: Английский

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In situ construction of a hydrophobic channel interconnecting zincophilic planes on the Zn surface for enhanced stability of Zn metal anodes

Energy & Environmental Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This work proposes a novel electrolyte additive, sulfobutylether-β-cyclodextrin, which remarkably improves the cycling stability of AZIBs with synergistic effect its zincophilic functional groups and unique adsorption configuration.

Language: Английский

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Untangling the Role of Capping Agents in Manipulating Electrochemical Behaviors Toward Practical Aqueous Zinc‐Ion Batteries

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

Published: Jan. 7, 2025

Abstract Long‐standing challenges including notorious side reactions at the Zn anode, low anode utilization, and rapid cathode degradation current densities hinder advancement of aqueous zinc‐ion batteries (AZIBs). Inspired by critical role capping agents in nanomaterials synthesis bulk crystal growth, a series are employed to demonstrate their applicability AZIBs. Here, it is shown that preferential adsorption on different planes, coordination between 2+ ions, interactions with metal oxide cathodes enable preferred (002) deposition, water‐deficient ion solvation structure, dynamic cathode‐electrolyte interface. Benefiting from multi‐functional agents, dendrite‐free plating stripping an improved Coulombic efficiency 99.2% enhanced long‐term cycling stability realized. Remarkable capacity retention 91% achieved for after more than 500 cycles under density 200 mA g −1 , marking one best stabilities date. This work provides proof‐of‐concept manipulating electrochemical behaviors, which should inspire pave new avenue research address practical energy storage beyond

Language: Английский

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Unlocking the Facet‐Governed Zn Homoepitaxy Growth Induced by Dynamic l‐Theanine Evolution Process Realized Highly Reversible Zn Anodes

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

Published: Jan. 9, 2025

Abstract Achieving highly ordered and compact assembly of zinc (Zn) deposits, side‐reaction‐free, no by‐product deposition manner Zn anodes is crucial to avoid the premature failure for Zn‐ion batteries, which jointly determined by state polycrystalline substrates, interfacial microenvironment, epitaxial growth, crystal orientation, their interaction. Herein, progressive electrochemical behavior anodes, regulated converted species l ‐theanine (THE) molecules from hydrogel matrix, uncovered. THE are capable accommodating electrolyte environment provide a weakly acidic condition at infancy stage electrodeposition, induces an in situ acid etching process releasing residual stress substrates. This achieves lattice match between substrate overgrowth crystals, renders crystals seamlessly amalgamate with form oriented densely packed deposit via homoepitaxial growth combined + cations. Concomitantly, adsorbed cations facilitate formation inorganic–organic hybrid solid interphase layer. Consequently, Zn||Zn cell THE‐filled significantly long cycling stability 2000 cycles, ultrahigh average Coulombic efficiency 99.0% over 1000 cycles.

Language: Английский

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