Dissolution, solvation and diffusion in low-temperature zinc electrolyte design

Nature Reviews Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 8, 2025

Language: Английский

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An Ultra-Stable, High-Energy and Wide-Temperature-Range Aqueous Alkaline Sodium-Ion Battery with the Microporous C4N/rGO Anode

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: Feb. 24, 2025

Abstract Common anode materials in aqueous alkaline electrolytes, such as cadmium, metal hydrides and zinc, usually suffer from remarkable biotoxicity, high cost, serious side reactions. To overcome these problems, we develop a conjugated porous polymer (CPP) in-situ grown on reduced graphene oxide (rGO) Ketjen black (KB), noted C 4 N/rGO N/KB respectively, the alternative anodes. The results show that electrode delivers low redox potential (−0.905 V vs. Ag/AgCl), specific capacity (268.8 mAh g −1 at 0.2 A ), ultra-stable fast sodium ion storage behavior (216 20 ) 2 M NaOH electrolyte. assembled N/rGO//Ni(OH) full battery can cycle stably more than 38,000 cycles. Furthermore, by adding small amount of antifreeze additive dimethyl sulfoxide (DMSO) to adjust hydrogen bonding network, low-temperature performance electrolyte (0.1 DMSO/2 NaOH) is significantly improved while evolution inhibited. Consequently, cell exhibits an energy density 147.3 Wh Kg ultra-high cycling stability over wide temperature range −70 45 °C. This work provides high-capacity CPP-based for batteries will facilitate their practical applications under extreme conditions.

Language: Английский

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Zn2+ flux regulator to modulate the interface chemistry toward highly reversible Zn anode

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 682, P. 232 - 241

Published: Nov. 28, 2024

Language: Английский

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Active Water Optimization in Different Electrolyte Systems for Stable Zinc Anodes

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

Published: Jan. 31, 2025

Zinc (Zn) metal, with abundant resources, intrinsic safety, and environmental benignity, presents an attractive prospect as a novel electrode material. However, many substantial challenges remain in realizing the widespread application of aqueous Zn-ion batteries (AZIBs) technologies. These encompass significant material corrosion (This can lead to battery failure unloaded state.), hydrogen evolution reactions, pronounced dendrite growth at anode interface, constrained electrochemical stability window. Consequently, these factors contribute diminished lifespan energy efficiency while restricting high-voltage performance. Although numerous reviews have addressed potential separator design mitigate issues some extent, inherent reactivity water remains fundamental source challenges, underscoring necessity for precise regulation active molecules within electrolyte. In this review, mechanism AZIBs (unloaded charge discharge state) is analyzed, optimization strategy working principle electrolyte are reviewed, aiming provide insights effectively controlling process reaction, further formation, expanding range stability. Furthermore, it outlines promote its practical future development pathways.

Language: Английский

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Ionic Liquid Induced Static and Dynamic Interface Double Shields for Long‐Lifespan All‐Temperature Zn‐Ion Batteries

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

Published: Feb. 25, 2025

Aqueous Zn-ion batteries (ZIBs) have experienced substantial advancements recently, while the aqueous electrolytes exhibit limited thermal adaptability. The low-cost Zn(BF4)2 salt possesses potential low-temperature application, brings unsatisfied stability of Zn anodes. To address this challenge, an ionic liquid based eutectic electrolyte (ILEE) utilizing presenting remarkable across a temperature range ≈-100-150 °C is developed, enabling ZIBs to operate in diverse conditions. inner Zn2+ solvation structure can be modulated BF4 --rich state within ILEE system, forming static ZnF₂ layer at electrolyte-Zn anode interface, as evidenced by ab initial molecular dynamic simulations. Moreover, positively charged EMIM+ accumulate on anodes form secondary electrostatic shield that mitigates uncontrollable dendrites growth, enhancing overall cycling life over 10 times compared with pure system. When electrolyte, PANI||Zn full cells demonstrate acceptable performances under all-temperature environments, especially long 9500 cycles low -40 and 500 high 60 °C. This special holds significant promise for future extreme environment.

Language: Английский

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Enabling highly reversible Zn anode via an interfacial preferentially adsorbed additive containing nucleophilic groups

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

Published: March 21, 2025

The cyclability and reversibility of aqueous zinc-ion batteries (AZIBs) are severely hampered by the safety concerns arising from Zn dendrite growth. Therefore, a stable anode with inhibited dendrites side reactions is crucial for AZIBs. Herein, we utilized methyl acetoacetate (MA) as an additive to prevent growth enable highly reversible anodes. Benefiting nucleophilic groups (carbonyl groups) in MA, MA molecules can preferentially adsorb on anode/electrolyte interface (AEI), forming molecular protective layer. Such layers not only regulate migration deposition zinc ions, but also inhibit induced decomposition free H2O at AEI. symmetric cell addition achieves long-term cycling stability 1,500 h 2 mA cm-2 capacity mAh cm-2. In addition, Zn//NVO full using MA-contained electrolyte demonstrates high specific (138.4 g-1) outstanding retention (92.8% after 600 cycles) 1 A g-1. This work provides principle use ester-based additives suppress durable metal

Language: Английский

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Coupling of Mechanical, Self‐Healing, Adhesion, and High‐Ion Conducting Properties in Anti‐Freezing Hydrogel Electrolytes of Zinc Ion Batteries via Fe³⁺‐Carboxylate Coordination

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

Published: April 14, 2025

Abstract Aqueous zinc‐ion batteries (AZIBs) based on hydrogel electrolytes are considered promising flexible power supplies owing to their intrinsic safety, competent volumetric energy density, and eco‐friendliness. However, severe mechanical deterioration of the caused by insufficient inter‐component contact, zinc (Zn) dendrites, freezing prevents commercialization. Herein, it is found that, doping a trace Fe 3+ ions afford ‐carboxylate supramolecular interaction, practicality an archetypal cellulose nanofiber‐reinforced electrolyte significantly improved in couple aspects, including three eight times increase tensile strength toughness without loss ion conducting ability (up 32 mS cm −1 ) being room‐temperature self‐healable strongly adhesive various battery components. Together with use anti‐freezing mixed Zn salt, resulting able deliver ultrahigh cycling reversibility (averaging 99.4%), great cyclability AZIBs (a high specific capacity 180 mAh g retention 81%), render operable under abuse conditions 180° folding, exposure liquid nitrogen, cutting–rehealing cycles. This work unlocks enormous potential chemistry development self‐healable, anti‐freezing, extreme‐environment‐adaptable gel for storage devices.

Language: Английский

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Aluminum Ion Batteries: Electrolyte and Anode Innovations and Outlook

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104274 - 104274

Published: April 1, 2025

Language: Английский

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Design and Structure of Electrolytes for All‐Weather Aqueous Zinc Batteries

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

Published: Dec. 1, 2024

Abstract Rechargeable aqueous zinc batteries (AZBs) utilizing water‐borne electrolytes are intrinsically safe electrochemical devices that promising in next‐generation energy storage. Such application requires adaptivity to global climate, especially at grid‐scale, thus their stability of performance varying temperatures is critical. Many essential properties AZBs, i.e., ion transfer, redox kinetics, etc., largely governed by the because relatively limited stable phase temperature water. This limitation extremely vital cold regions since charging and discharging become more difficult sub‐zero range due water freezing. Despite development various electrolyte strategies recent years, comprehensive reviews focusing on this topic remain limited. research diverse reasons underneath failure AZBs extreme provides a thorough analysis possible resolutions from an perspective. It starts with challenges faced both high low concerning electrolytes. Different addressing these discussed, providing insights into under conditions. Finally, review concludes summary outlook design structure for all‐weather integrating innovative non‐aqueous battery systems.

Language: Английский

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MOF-Based Construction of Oxygen Vacancies ZnMn₂O₄ for Superior Zinc Storage

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: 17(9), P. 13997 - 14007

Published: Feb. 19, 2025

Manganese-based oxides are widely used as cathode materials for aqueous zinc-ion batteries (ZIBs) due to their high theoretical specific capacity, abundant reserves, and operating voltage. However, practical applications limited by inherent issues such active material dissolution, structural collapseor changes, slow reaction kinetics. In this study, a zinc batteries, ZnO–ZnMn2O4 (MZ), is synthesized based on metal–organic framework (MOF). Synergistic strategies involving atomic composition modulation defect engineering employed address the of ZnMn2O4, stabilize structure, inhibit disproportionation Mn3+, reduce Jahn–Teller effect. Additionally, benefits from enhanced oxygen vacancies smaller particle size, which promote faster Electrochemical tests show that MZ-550 delivers capacity 314.5 mA h g–1 at 100 cycling stability, with retention 96.6% after 1500 cycles 1000 g–1. addition, demonstrates outstanding electrochemical performance under extreme conditions, capacities 86.4 −20 °C 331.1 40 °C. This study provides insights development high-performance ZIBs in advanced energy storage systems.

Language: Английский

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