Enhanced Zinc Deposition and Dendrite Suppression in Aqueous Zinc‐Ion Batteries Via Citric Acid‐Aspartame Electrolyte Additives

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 24, 2025

Abstract Despite the advantages of low cost, safety, and environmental friendliness, aqueous zinc‐ion batteries (AZIBs) encounter challenges such as zinc dendrite formation, severe side reactions, electrolyte instability. Many effective additives exhibit limited solubility in water, thus reducing their practical application potential. In this study, a dissolution‐promoting strategy is proposed by introducing citric acid (CA) to enhance dissolution aspartame (APM), resulting sulfate electrolyte. Simulations experiments indicate that CA regulates both solvation structure Zn 2+ pH electrolyte, while APM preferentially integrates into electric double layer form solid interphase with CA, thereby suppressing hydrogen evolution reactions. Consequently, zinc‐zinc symmetric cell exhibits an extended lifespan over 4,500 h at 1.0 mA cm −2 /1.0 mAh . As result, AZIBs commercial foil MnO 2 enhanced rate capability improved capacity retention (75.6%) after 2,000 cycles. This study presents novel for stabilizing anodes offers comprehensive framework addressing fundamental AZIBs, advancing next‐generation energy storage systems.

Язык: Английский

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Ultralow Concentration Zwitterionic Additives Enable Rapid Adsorption Equilibrium Promoting Long‐Life Aqueous Zinc‐Ion Battery

Small, Год журнала: 2025, Номер unknown

Опубликована: Апрель 8, 2025

Abstract Aqueous zinc‐ion batteries (AZIBs) face challenges in practical applications due to unstable electrode‐electrolyte interfaces and zinc dendrite growth. This study introduces an ultra‐low concentration (5 mmol L⁻¹) zwitterionic additive, Pyridinium‐1‐Propane‐3‐sulfonate (PPS), reconstruct the electric double layer (EDL) regulate surface reactions. Compared with structurally similar ionic additive N‐Butylsulfonicpyridinium (BSO 3 Py) imidazole‐based 3‐(1‐Methyl‐1H‐imidazol‐3‐ium‐3‐yl) propane‐1‐sulfonate (MPS), PPS exhibits superior parallel adsorption on zinc. Its dynamic adaptation Zn 2+ deposition achieves rapid equilibrium, optimizing active site utilization. Sulfonic acid groups form a robust interfacial through intermolecular interactions, while hydrophobic pyridine ring blocks water/sulfate contact. Symmetric achieved 700 hours of cycling at 20 mA cm⁻ 2 cumulative plating capacity exceeding 7000 mAh, alongside 99.81% Coulombic efficiency 5 . Zn‐VO full retained 247.46 mAh g⁻¹ after 1200 cycles A g⁻¹. engineering strategy provides scalable solution for stable AZIBs.

Язык: Английский

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ZnNCN protective layer with high zincphilicity and ionic conductivity for stable zinc metal anodes

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162630 - 162630

Опубликована: Апрель 1, 2025

Язык: Английский

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Zn²⁺ Mediator with Ultrahigh Capacity over 8 m Enabled by H_1.07Ti_1.73O₄ Ion Sieve for Stable Zinc Metal Batteries

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 14, 2025

Abstract Interfacial engineering is universally acknowledged as a dependable methodology to address the aqueous zinc metal interface issues. Although it quite effective, introduction of modification layer impedes interfacial ion transport kinetics some extent. Addressing this trade‐off between stability and flux critical for advancing zinc‐based energy storage systems. Herein, layered titanate (H 1.07 Ti 1.73 O 4 , HTO) medium enabling fast Zn 2+ ultrahigh concentration on anode surface proposed. It demonstrated that HTO uniquely facilitates enrichment through exchange interlayer H + ions, achieving an exceptionally high adsorption 8.35 m far exceeding electrolyte (2 ZnSO ). The serves dynamic bridge, establishing continuous conductive pathway, its inherent negative charge selectively block sulfate anion (SO 2− ) penetration, thus exhibiting dual functionality conductor sieve. protected (Zn@HTO) exhibits exceptional stability, nearly 2300 h cycling at current density 0.5 mA cm −2 over 3900 5 . Furthermore, Zn@HTO//ZnVO full cell demonstrates prolonged operational stability. This strategy provides significant stride in breaking limitation concentration, thereby fast, stable electrochemical reactions.

Язык: Английский

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Self-Assembled Monolayer Enables a Nucleophilic Interfacial Layer for Highly Reversible Zinc Metal Anode

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Апрель 22, 2025

Aqueous zinc-ion batteries (AZIBs) are promising candidates for next-generation energy storage systems. However, the practical implementation is hindered by challenges associated with zinc (Zn) dendrite growth and parasitic side reactions. Here, we designed a self-assembled monolayer (SAM) using theanine (CA) to modify Zn anode. As expected, CA can strongly interact substrate through carboxyl groups, forming compact uniform SAM. The amino amide functional groups of exhibit high affinity, effectively regulating Zn2+ flux achieving deposition. ultrathin interface provided acts as barrier water molecules, thereby suppressing hydrogen evolution reactions (HER) minimizing formation undesirable byproducts. result, anodes protected demonstrate exceptional durability, operating over 2000 h at current density 5 mA cm-2 an areal capacity 2 mAh cm-2. Additionally, full cells paired NH4V4O10 cathodes also superior reaction reversibility retention. CA-based SAM holds promise overcoming critical faced in anode advancing development stable efficient AZIBs.

Язык: Английский

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Positively Charged Quasi-Metal–Organic Framework to Reconstruct an Electric Double Layer for a Durable Zn Metal Anode

Nano Letters, Год журнала: 2025, Номер unknown

Опубликована: Апрель 28, 2025

To reveal the construction principle of an electric double layer (EDL) on a Zn anode, positively charged artificial solid electrolyte interphase (SEI) is established by quasi-metal-organic framework with open metal sites (OMSs). As illustrated theoretical calculation and in situ Raman Fourier transform infrared spectroscopy characterization, OMSs are introduced successfully unsaturated Ce bond SO42- anions as transfer for Zn2+, leading to homogeneous ion distribution within inner Helmholtz plane (IHP). Therefore, Zn2+-H2O-SO42- EDL has been adjusted due regulating effect SEI. Besides, regulated reduces concentration free H2O IHP, thus promoting uniform Zn2+ deposition anticorrosion properties anode. result, Q-Ce-808@Zn anode demonstrates exceptional cycling stability over 4200 h (1 mA cm-2) 1300 (20 cm-2).

Язык: Английский

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Synergistic polyacrylonitrile/sodium β-glycerophosphate composite protective layer for enhanced zinc-ion batteries cycle stability

Journal of Power Sources, Год журнала: 2025, Номер 645, С. 237175 - 237175

Опубликована: Апрель 26, 2025

Язык: Английский

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Design of Porous Organic Polymer ASEIs for Zn Anode Protection and Ion Migration Regulation

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 10, 2024

Abstract Rechargeable aqueous Zn metal batteries (RAZMBs) are considered as a competitive alternative to the next generation of energy storage system. However, stripping/plating reversibility is greatly limited by dendrite growth and side reactions on anode. In virtue excellent protection ion migration regulation effects, porous organic polymer artificial solid electrolyte interphases (POPASEIs) have attracted widespread attention in stabilizing This article summarizes progress anode POPASEIs recent years, divided into two categories according matrix: polymer‐based nonporous POPASEIs. The can be coordination (PCOOP)‐based covalent polymers (PCVOP)‐based ASEIs chemical structure, while four types pore‐forming strategies, including phase separation‐induced POPASEIs, template‐assisted fiber‐formed filler‐modified addition, structural advantages, challenges, perspectives for also discussed provide guidance further research development ASEIs.

Язык: Английский

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Trace Amounts of Multifunctional Electrolyte Additives Enhance Cyclic Stability of High‐Rate Aqueous Zinc‐Ion Batteries

Small, Год журнала: 2024, Номер unknown

Опубликована: Окт. 22, 2024

Abstract Aqueous zinc ion batteries (AZIBs) are renowned for their exceptional safety and eco‐friendliness. However, they face cycling stability reversibility challenges, particularly under high‐rate conditions due to corrosion harmful side reactions. This work introduces fumaric acid (FA) as a trace amount, suitable high‐rate, multifunctional, low‐cost, environmentally friendly electrolyte additive address these issues. FA additives serve prioritized anchors form water‐poor Inner Helmholtz Plane on Zn anodes adsorb chemically anode surfaces establish unique in situ solid‐electrolyte interface. The combined mechanisms effectively inhibit dendrite growth suppress interfacial reactions, resulting excellent of anodes. Consequently, with just tiny quantities FA, achieve high Coulombic efficiency (CE) 99.55 % exhibit remarkable lifespan over 2580 hours at 5 mA cm −2 , 1 mAh Zn//Zn cells. Even (10 ), it can still run almost 2020 hours. Additionally, the Zn//V 2 O full cell retains specific capacity 106.95 g −1 after 2000 cycles A . provides novel design electrolytes AZIBs.

Язык: Английский

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Ion flux regulating with Au-modified separator to realize a homogenize Zn metal deposition

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 683, С. 892 - 900

Опубликована: Дек. 17, 2024

Язык: Английский

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