High concentrations of sodium dodecylbenzene sulfonate electrolyte additives improve the performance of aqueous zinc ion batteries

Solid State Ionics, Journal Year: 2025, Volume and Issue: 422, P. 116817 - 116817

Published: March 3, 2025

Language: Английский

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Resolving the Zincophilicity‐Desolvation Dilemma of Electrolyte Additives via Molecular Engineering for Achieving High‐Rate Zinc Anodes with Minimized Polarization

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

Published: Feb. 28, 2025

Abstract Zincophilic additives have been widely applied to stabilize Zn metal anodes owing their efficacy in regulating 2+ diffusion. However, high zincophilicity causes elevated desolvation barriers, contributing increased polarization and reduced stability, particularly under high‐current conditions. Herein, a novel molecular engineering approach is proposed that integrates steric hindrance H‐bond interactions promote the of zincophilic additives, thereby achieving high‐rate with minimized polarization. As proof‐of‐concept, N,N‐di‐(2‐picolyl)ethylenediamine (NDPA), additive comprising potent chelating sites polar amino tail group designed. NDPA boasts four solvation sites, which not only contribute exceptional zincophilicity, effectively diffusion but also exhibit significant hindrance, reducing number H₂O molecules, lowering dehydration energy. Additionally, NDPA's free groups form H‐bonds facilitating dissociation coordinated additives. Consequently, at current density 20 mA cm −2 , addition Zn||Zn symmetric cell improves lifespan from 37 h over 2000 reduces voltage 137 82 mV. This work presents strategy overcome zincophilicity‐desolvation dilemma electrolyte for developing durable zinc anodes.

Language: Английский

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Molecular Synergistic Effects Mediate Efficient Interfacial Chemistry: Enabling Dendrite-Free Zinc Anode for Aqueous Zinc-Ion Batteries

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(45), P. 30998 - 31011

Published: Nov. 4, 2024

The primary cause of the accelerated battery failure in aqueous zinc-ion batteries (AZIBs) is uncontrollable evolution zinc metal-electrolyte interface. In present research on development multiadditives to ameliorate interfaces, it challenging elucidate mechanisms various components. Additionally, synergy among additive molecules frequently disregarded, resulting combined efficacy that unlikely surpass sum each component. this study, "molecular synergistic effect" employed, which generated by two nonhomologous acid ester (NAE) additives double electrical layer microspace. Specifically, ethyl methyl carbonate (EMC) more inclined induce oriented deposition metal means targeted adsorption with (002) crystal plane. Methyl acetate (MA) likely enter solvated shell Zn

Language: Английский

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Synergistic Cationic Shielding and Anionic Chemistry of Potassium Hydrogen Phthalate for Ultrastable Zn─I₂ Full Batteries

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

Published: Oct. 22, 2024

Abstract Electrolyte additives are investigated to resolve dendrite growth, hydrogen evolution reaction, and corrosion of Zn metal. In particular, the electrostatic shielding cationic strategy is considered an effective method regulate deposition morphology. However, it very difficult for such a simple modification avoid competitive reactions, corrosion, interfacial pH fluctuations. Herein, multifunctional potassium phthalate (KHP) based on synergistic design anionic chemistry ultrastable Zn||I 2 full batteries demonstrated. K cations, acting as constructed smooth HP anions can enter first solvation shell 2+ reduced activities H O, while they remain in primary finally involved formation SEI, thus accelerating charge transfer kinetics. Furthermore, by situ monitoring near‐surface electrode, KHP effectively inhibit accumulation OH − by‐products. Consequently, symmetric cells achieve high stripping–plating reversibility over 4500 2600 h at 1.0 5 mA cm −2 , respectively. The deliver ultralong term stability 1400 cycles with high‐capacity retention 78.5%.

Language: Английский

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Reforming Multifunctional Solid Electrolyte Interphase for High‐Performance Zn Anode Through a Nature‐Inspired Strategy

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

Published: Jan. 23, 2025

Abstract Aqueous Zn metal batteries (AZMBs) have appealing advantages, including good safety, low cost, and high volumetric energy density. However, serious parasitic reactions dendrite growth at anodes hinder practical applications of AZMBs. Here, a nature‐inspired strategy is proposed to improve using plant‐cell derivatives as additives for ZnSO 4 electrolytes. In the electrolyte, TEMPO (2,2,6,6‐tetramethylpiperidine‐1‐oxyl)‐oxidized cellulose nanofibers (TOCN) calcium lignosulfonate (CL) with specific functional groups modulate 2+ solvation structure. More importantly, they reform cell membrane/wall‐like layer mechanical strength selective transmission/plating on anode surface, which enables uniform deposition alleviates side reactions. As result, symmetric cells dual‐additive electrolyte exhibit highly reversible dendrite‐free stripping/plating behavior over 2000 500 h 2 mA cm −2 /1 mAh 10 /10 , respectively. Furthermore, Zn//NH V O full shows cycling stability 300 cycles negative/positive (N/P) ratio. A density 92.9 Wh kg −1 can be delivered limited metallic consumption, showing that has prospects use.

Language: Английский

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Facilitating Oriented Dense Deposition: Utilizing Crystal Plane End‐Capping Reagent to Construct Dendrite‐Free and Highly Corrosion‐Resistant (100) Crystal Plane Zinc Anode

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(41)

Published: Aug. 13, 2024

Abstract Dendrite growth and corrosion issues have significantly hindered the usability of Zn anodes, which further restricts development aqueous zinc‐ion batteries (AZIBs). In this study, a zinc‐philic hydrophobic (100) crystal plane end‐capping reagent (ECR) is introduced into electrolyte to address these challenges in AZIBs. Specifically, under mediation 100‐ECR, electroplated configures oriented dense deposition texture, slows down formation dendrites. Furthermore, owing high resistance protective interface formed by adsorbed ECR on electrode surface, anode demonstrates enhanced reversibility higher Coulombic efficiency modified electrolyte. Consequently, superior electrochemical performance achieved through novel control strategy protection technology. The Zn//VO 2 cells based maintained high‐capacity retention ≈80.6% after 1350 cycles, corresponding low‐capacity loss rate only 0.014% per cycle. This study underscores importance uniformity planes over their type. And engineering, high‐quality constructed, thereby expanding range options for viable anodes.

Language: Английский

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Electrolyte Additive Molecule Disassembly to Reveal the Roles of Individual Groups in Zn Electrode Stabilities in Aqueous Batteries

ACS Nano, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 24, 2024

Zn metal anodes experience dendritic growth and hydrogen evolution reactions (HER) in aqueous batteries. Herein, we propose an interface regulation strategy with a trace (1.4 × 10

Language: Английский

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Functional Hydrogels for Aqueous Zinc‐Based Batteries: Progress and Perspectives

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

Published: Dec. 10, 2024

Aqueous zinc batteries (AZBs) hold great potential for green grid-scale energy storage due to their affordability, resource abundance, safety, and environmental friendliness. However, practical deployment is hindered by challenges related the electrode, electrolyte, interface. Functional hydrogels offer a promising solution address such owing broad electrochemical window, tunable structures, pressure-responsive mechanical properties. In this review, key properties that functional must possess advancing AZBs, including strength, ionic conductivity, swelling behavior, degradability, from perspective of full life cycle in AZBs are summarized. Current modification strategies aimed at enhancing these improving AZB performance also explored. The design considerations integrating with electrodes interface discussed. end, limitations future directions bridge gap between academia industries successful

Language: Английский

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Cold-resilient zinc batteries with organic-free solvation structures

Chem, Journal Year: 2025, Volume and Issue: unknown, P. 102403 - 102403

Published: Jan. 1, 2025

Language: Английский

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“Water‐In‐Oil” Electrolyte Enabled by Microphase Separation Regulation for Highly Reversible Zinc Metal Anode

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

Published: Feb. 19, 2025

Abstract The sustained hydrogen evolution and zinc (Zn) dendrite growth greatly impede the practical application of low‐cost aqueous Zn metal batteries (ZMBs). Herein, for first time, a microphase separation strategy is proposed to construct ″water‐in‐oil (W/O) electrolyte endow durable ZMBs. As validated by theoretical modeling experimental characterizations, unique reverse micelle structure within not only disrupts water bonding efficiently inhibits consumption at anode, but also undergoes directed movement reversible demulsification under electric field, thus enhancing anode desolvation kinetics inhibiting interfacial side reactions. Owing simultaneous regulation molecules in both bulk interface, this W/O achieves high plating/stripping Coulombic efficiency 99.76% over 6000 cycles, maintains an extend lifespan Zn||V 10 O 24 ·12H 2 (VOH) cells with negligible formation. These key findings are expected promote engineering toward

Language: Английский

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