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

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 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 .

Язык: Английский

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Designing Confined Thermal‐Recognized Hydrogen Bonding Nanochannels for Effective and Energy‐Efficient Water Isotopologue Sieving

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 3, 2025

Abstract Water isotopologue sieving has been flagged as one of the biggest challenges in modern separation technologies owing to their extremely similar physicochemical properties. As a benchmark candidate, current membrane suffers from inferior water imposed by failure size exclusion conventional separation. Herein, facile approach is presented elaborate MXene/Cellulose nanofiber (CNF) membranes featuring confined thermal‐recognized hydrogen bonding nanochannels, enabling highly‐selective, energy‐efficient and durable deuterium under low‐grade heat. The key such lies meticulous utilization CNF‐enabled rich bonds within which attract more via bond (─OD/─OH) meanwhile thermally recognizing with stable ─OD interaction create significant diffusion kinetic differences over It demonstrated that MXene/CNF deliver an extraordinary factor high 5.2 yet demanding energy consumption low 2.9 GJ kg −1 , outperforming most state‐of‐the‐art technologies. Moreover, exhibits performance long‐term operations can be further integrated into multi‐stage device for augmenting concentration water, making it step closer practical applications.

Язык: Английский

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Phosphated Electrolyte Enabling Dual Robust Electrode–Electrolyte Interfacial Reconstruction Toward Capable Zn Metal Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 23, 2025

Abstract Rechargeable aqueous zinc‐ion batteries (ZIBs) are expected to be the next generation of low‐cost, safe, and high‐energy‐density energy storage systems. However, undesirable electrode/electrolyte interfacial (EEI) side reactions anode dissolution cathode materials during cycling ZIBs have led drastic degradation battery performance. Here, a phosphated electrolyte is developed facilitate simultaneous formation Zn 3 (PO 4 ) 2 ‐rich solid interphase (SEI) cathode/electrolyte interface (CEI) as well improved solvent chemistry. The in situ generated robust EEI induce uniform deposition zinc inhibit solvation material achieve high performance ZIBs. chemistry promises stable at low temperatures with an ultra‐long life 600 h −10 °C. Moreover, pouch cell exhibits excellent no significant capacity after 150 cycles. In addition, anode‐free performances long lifetime 200 This study provides simple effective strategy for construction

Язык: Английский

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Surface Tension‐Derived Electrical Double Layer Modification Enables Practical Zinc‐Ion Pouch Cells

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 2, 2025

Abstract Interface issues such as parasitic reactions and dendrite growth have long been major obstacles hindering the longevity of aqueous zinc‐ion batteries (AZIBs). The quest for more effective strategies to regulate highly active interface remains a focal point in AZIBs. Herein, novel interface‐targeted additive N‐Acetoacetylmorpholine (NHM) is introduced, by lowering interfacial tension modifying electrical double layer, improve performance This reconfiguration results H 2 O‐poor inner Helmholtz plane, which suppresses reactions, accelerates kinetics, fosters uniform zinc deposition. Consequently, anode demonstrates impressive cycling durability, exceeding 3800 h plating/stripping process 400 steady cycle at high depth discharge (DOD) 60%. Zn/NH 4 V O 10 full cell superior performance, achieving 80% capacity retention after 1500 cycles. Moreover, pouch cells with highloading cathodes (13.5 mg cm −2 ) can maintain 70% 300 cycles 0.5 A g −1 . controlled N/P ratio (2.63:1) shows excellent stability 130 These findings provide valuable insights into design offer promising enhancing practicality

Язык: Английский

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Polyetheramine Nematic Spatial Effects Reshape the Inner/Outer Helmholtz Planes for Energetic Zinc Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 10, 2025

Abstract Aqueous zinc (Zn) batteries hold significant promise as large‐scale energy storage solutions aimed at mitigating the intermittency of renewable energy. Nevertheless, Zn anode is plagued by a series adverse reactions, hindering development toward practical applications. Herein, concept polyetheramine nematic spatial effects that reshape inner and outer Helmholtz planes to stabilize introduced. Theoretical calculations characterizations confirm reshaped exhibit water/suflate‐repulsive homogeneous 2+ transport interface, enabling highly stable for energetic batteries. Consequently, anode‐free half‐cells under achieve cycling over 390 h an areal capacity 50 mAh cm −2 1500 10 . The constructed Zn‐V 2 O 5 Zn‐MnO cycle performance 1000 2000 cycles, respectively. Importantly, enlarged pouch cell with 300 demonstrates specific 176 g −1 after cycles. Moreover, displays successful integration photovoltaic panels along notable safety features. This superior electrical double‐layer regulation strategy offers valuable insights into

Язык: Английский

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Homogeneous Low-Tortuosity Membrane with Fast Ion Transfer towards Life-Durable Low-Temperature Zinc Metal Batteries

Energy storage materials, Год журнала: 2025, Номер unknown, С. 104161 - 104161

Опубликована: Март 1, 2025

Язык: Английский

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Synergistic Gradient Design of a Sandwich‐Structured Heterogeneous Anode for Improved Stability in Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 8, 2025

Abstract Aqueous Zn‐ion batteries provide a low‐cost energy storage solution but face challenges such as dendrite formation and interface instability, which become more pronounced at high currents capacities. Herein, scalable sandwich‐structured heterogeneous anode is proposed for aqueous zinc that integrate three functionally synergistic layers. A robust 3D ZnO@C substrate (from calcined Bio‐MOF‐100, BMC) with dense nucleation sites guides orderly Zn deposition, while controllable pre‐deposited intermediate layer precisely regulates 2 ⁺ flux. An artificial indium‐based protective top‐layer chemically isolates the active from electrolyte, effectively suppresses interfacial corrosion, enhances interlayer contact to minimize impedance maintaining structural integrity during cycling. The synergies endow symmetric cell an ultra‐long cycle life exceeding 2000 h stable plating/stripping remarkable depth of discharge (76%) under current/areal capacity conditions (6 mA cm −2 /12 mAh ). Additionally, BMC@Zn@In//(NH 4 ) V 10 O 25 ·8H full battery achieves lifespan 5000 cycles, BMC@Zn@In//activated carbon hybrid supercapacitor demonstrates impressive 16 000 cycles. This study identifies mechanism ultra‐stable promising applications in batteries.

Язык: Английский

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Reconstructing Electric Double Layer with β‐diketone Additive for Highly Invertible Zn Anode

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 16, 2025

Abstract Aqueous Zn ion batteries (AZIBs) have emerged as a promising option for energy storage on large scale. However, the unsteady electric double layer (EDL) that causes continuous H 2 O and SO 4 2− induced side reactions byproducts, results in unstable anode electrolyte interphase (AEI) restricts practical application of AZIBs. A novel EDL reconstruction strategy is proposed by prior adsorption process organic molecules, achieving steady AEI uniform deposition. Experimental theoretical calculations illustrate zinc acetylacetonate (Zn(C 5 7 ) , Zn(acac) conceives pair polar groups (─C═O) contributes to stability AEI. As result, with additive (ZnSO + ZAH) realizes Zn//Zn cells highly invertible plating/stripping performance over 2400 h an average Coulombic efficiency 99.55%. Moreover, Zn//NH V 10 pouch ZAH maintain impressive capacity retention 55.81% during 3000 cycles. These spotlight enormous potential additive, providing feasibility reversible anodes.

Язык: Английский

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Constructing Compact Hybrid Buffer Interface via Ion Agglomeration Zone Electrolyte for Stable Zn Metal Battery

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 14, 2025

Abstract The development of aqueous Zn batteries is plagued by longevity limited at practical condition, due to the unstable electrode‐electrolyte interface. Here, this work designs an extended‐scale ion agglomeration zone (EIAZ) electrolyte obtain anion combined with cation structures and reduce water activity. nanostructure features nanometer‐scale depleted zones in which pairs are densely packed together form EIAZ, facilitates compact hybrid buffer interface formed via a collective transmission process ionic co‐opetition relationship. convergence densification models for surface result cations adaptive adsorption that mitigates concentration polarization interfacial 2+ prevents contact electrodes, constituting indispensable premise stabilizing both anode cathode Moreover, unique achieves crystallographic optimization fast reaction kinetics, generating ultralong cycling stability 5500 h. Therefore, zinc‐organic can exert outstanding over 3000 cycles 1000 under high current (10 A g ‒1 ) mass loading (14 mg cm −2 ). Impressively, pouch cell shows excellent capacity retention 99.8% 26.1 mAh after 250 cycles. This study offers novel perspective designing nanostructures electrode interfaces high‐performance batteries.

Язык: Английский

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Polydentate Ligand Stabilizes Electrolyte and Interface Layer for Anti‐Corrosion and Selective‐Deposited Zn Metal Aqueous Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 18, 2025

Abstract Zinc anode suffers from tough issues such as dendrite, corrosion, and hydrogen evolution, which lead to premature battery failure thus restrict the practical application of aqueous zinc‐metal batteries (ZMABs). Herein, a polydentate‐ligand tactic is introduced reconstruct solvation structure, improve corrosion resistance, trigger selective dendrite‐free deposition via β‐Alanyl‐L‐histidine (AH). With abundant amino, amide, carboxyl, imidazolyl groups, AH shows chelation effect, partially substitutes solvated SO 4 2− enters Zn 2+ sheath facilitate desolvation. Those groups also increase strong H‐bond proportion electrolyte, stabilizing water suppressing evolution reactions. Moreover, with multisite coordination, preferentially adsorbs on Zn(002) induce stable functional C, N, O, S‐rich solid‐electrolyte interphase zincophilic hydrophobic properties. It homogenizes both electric field concentration guides preferential growth along (002), realizing anode. As result, obtained electrolyte exhibits high CE 99.28%, extended stability over 6000 h, long lifespan 1000 cycles for Zn//MnO 2 batteries. This work offers novel design strategy additive toward stabilization anodes ZMABs.

Язык: Английский

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