Insights into the role of electrolyte additives for stable Zn anodes

Energy Materials, Journal Year: 2025, Volume and Issue: 5(2)

Published: Jan. 13, 2025

Aqueous zinc-based batteries (ZIBs), characterized by their low cost, inherent safety, and environmental sustainability, represent a promising alternative for energy storage solutions in sustainable systems. Significant advancements have been made developing high-performance cathode materials aqueous ZIBs, which exhibit enhanced lifespan density. However, challenges associated with zinc anodes, such as dendrite formation side reactions, impede the practical application of ZIBs. This manuscript discusses role electrolyte additives Zn electrodeposition process comprehensively describes strategies to enhance anode stability through additive incorporation. It specifically focuses on underlying mechanisms that regulate solvation structure electrical double layer. Finally, concludes future perspectives advancing technology, aiming provide guidelines more robust Zn-based

Language: Английский

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Steric hindrance and orientation polarization by a zwitterionic additive to stabilize zinc metal anodes

Carbon Neutralization, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 18, 2024

Abstract Zinc metal stands out as a promising anode material due to its exceptional theoretical capacity, impressive energy density, and low redox potential. However, challenges such zinc dendrite growth, corrosion, side reactions in aqueous electrolytes significantly impede the practical application of anodes. Herein, 3‐(1‐pyridinio)‐1‐propanesulfonate (PPS) is introduced zwitterionic additive achieve long‐term highly reversible Zn plating/stripping. Due orientation polarization with force electric field, PPS π–π conjugated pyridinio cations strong coordination ability sulfonate anion tends generate dynamic adsorption layer build unique water–poor interface. steric hindrance effect can attract solvated 2+ , thereby promoting desolvation process. Moreover, by providing large number nucleation sites inducing ion flow, preferred (002) crystal plane be achieved. Therefore, interfacial electrochemical reduction kinetics regulated uniform deposition ensured. Owing these advantages, Zn//Zn symmetrical cell exhibits remarkable cycling stability exceeding 2340 h (1 mA cm −2 1 ). The Zn//V 2 O 5 full also delivers stable for up 6000 cycles.

Language: Английский

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Dynamic Regulation of Hydrogen Bonding Networks and Solvation Structures for Synergistic Solar-Thermal Desalination of Seawater and Catalytic Degradation of Organic Pollutants

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Oct. 23, 2024

Although solar steam generation strategy is efficient in desalinating seawater, it still challenging to achieve continuous solar-thermal desalination of seawater and catalytic degradation organic pollutants. Herein, dynamic regulations hydrogen bonding networks solvation structures are realized by designing an asymmetric bilayer membrane consisting a bacterial cellulose/carbon nanotube/Co

Language: Английский

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Built‐In Trimodal Molecular Interaction Effect Enables Interface‐Compatible and Temperature‐Tolerance Aqueous Zinc Batteries

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

Published: July 8, 2024

Abstract Aqueous zinc‐ion batteries compatible with a wide temperature range and long cycle lifespan show great application prospects but are greatly limited by the unstable electrode‐electrolyte interfaces mismatched electrolytes. This report presents pathway of succinamic acid (SA) additive‐induced built‐in trimodal molecular interaction for constructing sustainable aqueous zinc batteries. As confirmed, such falls into following patterns: binding state H─F bond between SA polyvinylidene fluoride (PVDF) binder, micellar aggregation in electrolyte, spontaneous adsorption at Zn anode–electrolyte interface. Benefiting from above synergistic effect, electrode shows highly reversible deposition/stripping behavior over (−10–50 °C) when paired optimized electrolyte. Specially, an impressive 3530 h‐cycle symmetrical cell is achieved conditions 1 mA cm −2 mAh . Beyond that, significantly improved storage capability performance demonstrated both Zn‐MnO 2 Zn‐I Given good balance working range, ionic conductivity, 2+ transfer number this trace molecule‐mediated design paradigm provides new insights developing advanced batteries, including not to zinc‐based systems.

Language: Английский

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Highly Reversible Zinc Anode Enabled by Trifunctional Diethylenetriaminepentaacetic Acid Additive

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(9), P. 4614 - 4623

Published: Aug. 29, 2024

Rechargeable aqueous zinc-ion batteries (AZIBs) are promising energy storage systems. However, dendrite growth and side reactions on the zinc anode compromise Coulombic efficiency (CE) limit lifespan, posing constraints development of AZIBs. Herein we introduce a trifunctional additive, diethylenetriaminepentaacetic acid (DTPA), into electrolyte, which forms "shielding effect" layer surface, replaces coordinated H2O molecules in solvation sheath ions, moderates rise pH causing great enhancement reversibility cycling life anode. The Zn||Zn symmetric cell with 1.5 wt % DTPA achieves prolonged cycle 5000 h. V2O5||Zn full battery, addition DTPA, demonstrated enhanced rate performance stability. This work provides straightforward, environmentally friendly, economically feasible strategy for achieving highly stable AZIB.

Language: Английский

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Regulating Interfacial Kinetics Boost the Durable Ah-Level Zinc-ion Batteries

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

Published: Jan. 1, 2025

By regulating interfacial kinetics, TG4/H 2 O co-solvent electrolyte promotes dense, dendrite-free Zn electrodeposition, reduces H O-derived side reactions, and enhances cathode stability, enabling high reversibility durability for Ah-level ZIBs.

Language: Английский

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Morning Glory-Inspired Biomimetic Water Purification Device with a Dry Chimney for Efficient Solar-Thermal Desalination and Simultaneous Catalytic Degradation of Organic Pollutants

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

Published: Feb. 12, 2025

Although solar steam generation is effective in evaporating water and seawater under light irradiation, it ineffective purifying wastewater with organic pollutants. Herein, a morning glory-shaped purification device dry chimney (pistil) designed for simultaneous solar-thermal evaporation of catalytic degradation pollutants therein, which fabricated by decorating Au/CoFe2O4/carbon nanotube functional components on hydrophilic porous bamboo fabric substrate. Au CoFe2O4 are capable forming Mott–Schottky heterostructures to create stable built-in electric field promote the separation electron–hole pairs, thereby facilitating activation potassium peroxymonosulfate generate reactive oxygen species achieving high rate constant 0.222 min–1 1-sun irradiation. Crucially, bionic glory structure benefits continuous supply air creates airflow circulation, reducing humidity increasing escape saturated vapor from evaporator, 3.21 kg m–2 h–1 A total as 28.21 realized therein. The integration enables an efficient protocol

Language: Английский

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A sub-neutral aqueous electrolyte with pH buffering effect for the stable and reversible zinc metal electrochemistry

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 635, P. 236530 - 236530

Published: Feb. 18, 2025

Language: Английский

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Ultrastable electrolyte (>3500 hours at high current density) achieved by high-entropy solvation toward practical aqueous zinc metal batteries

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(19), P. 7281 - 7293

Published: Jan. 1, 2024

Ultrastable (>3500 h) electrolyte at high current density by high-entropy solvation for AZIBs. With increasing configuration entropy, O–H bond order in active H 2 O and ionic conductivity are increased, realizing highly reversible Zn anode.

Language: Английский

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In Situ Monitoring of Dynamic Adsorption‐Induced Interfacial Buffering Toward Highly Stable Zinc Metal Batteries

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

Published: Jan. 7, 2025

Abstract Electrolyte regulation and electrode/electrolyte interface optimization are recognized as crucial strategies for mitigating parasitic reactions enhancing zinc plating/stripping in metal batteries. Despite their established importance, the underlying mechanisms of behavior remain elusive, especially absence robust experimental characterization adsorption‐dominated approaches. Herein, situ monitoring interfacial adsorption effect is presented, employing a theoretically screened cyclen‐based additive. The dynamic response to alternating electric fields identified pivotal regulating metal‐electrolyte interfaces, evidenced by combination electrochemical quartz crystal microbalance (eQCM) measurements constant‐potential molecular dynamics simulation. Such provides pH buffering at zinc‐metal anode interface, facilitating orderly uniform plating/stripping. Consequently, performance zinc‐based half cells full markedly enhanced. findings offer comprehensive insights into strategic development functional electrolyte additives aqueous

Language: Английский

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