Energy storage materials, Год журнала: 2025, Номер unknown, С. 104204 - 104204
Опубликована: Март 1, 2025
Язык: Английский
Advanced Materials, Год журнала: 2024, Номер unknown
Опубликована: Сен. 27, 2024
Abstract Despite the widespread adoption of Zn anodes for aqueous energy storage, presence an inherent passivation layer and polycrystalline interface commercial foil consistently lead to non‐uniform electrodeposition, undermining stability practicality. Herein, study introduces a chemically polished metal anode (CP‐Zn) fabricated via simple immersion method. This “chemically polishing” process can effectively remove interfacial (de‐passivation), providing ample active sites plating/stripping ensuring uniformly distributed electric field 2+ ion flux. Additionally, selective etching during chemical polishing exposes more (002) crystal planes, promoting homogeneous smooth zinc deposition while suppressing related side reactions. Demonstrated by CP‐Zn anode, symmetric cell exhibits stable cycling over 4600 h at 1 mA cm −2 240 50% depth discharge (DOD), with CP‐Zn||VO 2 full maintaining ≈75.3% capacity retention 1000 cycles 3 A g −1 . strategy presents promising avenue advancing commercialization zinc‐ion batteries.
Язык: Английский
Процитировано
32
Energy & Environmental Science, Год журнала: 2024, Номер 17(20), С. 7850 - 7859
Опубликована: Янв. 1, 2024
By constructing a hydrogel film doped with an ionic liquid on Zn anode, water-scarce inner Helmholtz plane and ion-enriched outer is developed, which effectively enables stable zinc anode for Ah-scale metal batteries.
Язык: Английский
Процитировано
29
Advanced Functional Materials, Год журнала: 2024, Номер 34(19)
Опубликована: Янв. 18, 2024
Abstract Aqueous Zn‐ion batteries with mild acidic electrolytes are considered the promising energy storage solutions due to their outstanding merits of high density and cost‐effectiveness. However, rampant dendrite growth severe parasitic reactions caused by a series factors such as irregular Zn 2+ transport pathway pH variation would result in poor cycling stability. Herein, self‐regulated interface strategy implemented ammonium persulfate ((NH 4 ) 2 S O 8 , denoted APS) multifunctional additive is proposed simultaneously address above issues. The zincophilic NH + preferentially adsorbs on protuberance exclude water molecules shield “tip effect,” thus inhibiting side‐reactions inducing uniform deposition. Moreover, 2− can dynamically adjust H OH − concentrations self‐buffer manner, effectively mitigating hydrogen evolution reaction formation by‐products. Consequently, existence APS additive, anode exhibits ultrahigh coulombic efficiency (CE) 99.9% over 9000 cycles ultra‐long lifespan 4300 h at 5 mA cm −2 . Furthermore, even under V 10 mass loading (9.4 mg thin zinc foil (10 µm), assembled //Zn pouch cell still maintain stably 210 cycles, demonstrating its excellent value for application.
Язык: Английский
Процитировано
23
Advanced Materials, Год журнала: 2024, Номер 36(27)
Опубликована: Апрель 23, 2024
Abstract Aqueous zinc‐based batteries (ZBs) have been widely investigated owing to their intrinsic safety, low cost, and simple assembly. However, the actual behavior of Zn deposition under large current density is still a severe issue associated with obscure mechanism interpretation ZBs high loading. Here, differing from conventional understanding that short circuit induced by dendrite penetrating (10–100 mA cm −2 ), separator permeation effect unraveled illustrate paradox between smooth lifespan. Generally, dense plating morphology achieved because intensive nuclei boosted plane growth. Nevertheless, in scenes applying separators, multiplied local derived narrow channels leads rapid 2+ exhaustion, converting mode nucleation control concentration control, which eventually results circuit. This validated other aqueous metal anodes (Cu, Sn, Fe) receives similar results. Based on understanding, micro‐pore (150 µm) sponge foam proposed as separators for large‐current provide broader path mitigate effect. work provides unique perspectives coordinating fast‐charging ability anode stability ZBs.
Язык: Английский
Процитировано
21
Energy storage materials, Год журнала: 2024, Номер 66, С. 103244 - 103244
Опубликована: Фев. 1, 2024
Язык: Английский
Процитировано
16
ACS Nano, Год журнала: 2024, Номер 18(37), С. 25880 - 25892
Опубликована: Сен. 5, 2024
Aqueous zinc-ion batteries (AZIBs) exhibit promising prospects in becoming large-scale energy storage systems due to environmental friendliness, high security, and low cost. However, the growth of Zn dendrites side reactions remain heady obstacles for practical application AZIBs. To solve these challenges, a functionalized Janus separator is successfully constructed by coating halloysite nanotubes (HNTs) on glass fiber (GF). Impressively, different electronegativity inner outer surfaces HNTs endows HNT-GF with ion-sieving property, leading significantly transference number
Язык: Английский
Процитировано
16
Energy & Environmental Science, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
A macromolecule additive strategy is presented as a dual deceleration interfacial network to regulate Zn deposition behavior and inhibit side reactions. It enables the stable cycling of electrodes in aqueous batteries.
Язык: Английский
Процитировано
4
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Май 3, 2024
Abstract Metal Zn anode encounters uncontrolled dendrite growth, resulting in poor cycling stability and low coulombic efficiency (CE). Herein, a novel approach for oriented‐electrochemical etching of (ECE‐Zn) deep eutectic solvent (DES) is presented to adjust the interface concentration electric fields, effectively mitigating intractable issues. The oriented etches off crystal edges between (002), (100), (101) principal planes commercial foil, subsequently (100) planes, formation well‐organized columns. Comprehensive experimental investigations theoretical analyses reveal that ions directionally nucleate grow columns, enabling epitaxial growth at (002) plane. ECE‐Zn‐2 anodes demonstrate remarkable stability, along with nucleation polarization voltages. Specifically, symmetric cells show sustained operation 5400 h, long‐term 10 000 cycles 40 mA cm −2 . More significantly, asymmetric exhibit an average CE as high 99.92% over 6000 5.0 When assembled V 2 O 5 cathode, retention 81.5% can be maintained even under severe condition (N/P ratio 7.35). This strategy opens up new pathway dendrite‐free metal anode.
Язык: Английский
Процитировано
15
Advanced Materials, Год журнала: 2024, Номер unknown
Опубликована: Сен. 20, 2024
Abstract Aqueous Zn battery is promising for grid‐level energy storage due to its high safety and low cost, but dendrite growth side reactions at the metal anode hinder development. Designing with (002) orientation improves stability of anode, yet grain boundaries remain susceptible corrosion growth. Addressing these intergranular issues crucial enhancing electrochemical performance (002)‐textured Zn. Here, a strategy based on boundary wetting fill regions mitigate reported. By systematically investigating fillers filling conditions, In chosen as filler, one‐step annealing used synergistically convert commercial foils into single while boundaries. The inter‐crystalline‐modified (IM(002) Zn) effectively inhibits growth, resulting in excellent batteries. This work offers new insights protection development high‐energy
Язык: Английский
Процитировано
14
Energy & Fuels, Год журнала: 2024, Номер 38(13), С. 12212 - 12220
Опубликована: Июнь 19, 2024
Excessive dendrite formation and side reactions compromise the reversibility stability of zinc anodes, obstructing deployment aqueous zinc-ion batteries. An economical, yet effective solution involves deploying electrolyte additives for a solid interphase (SEI) on metal anodes. Managing to fabricate an optimal SEI via these remains challenging. Here, we introduce cost-effective copper sulfate additive, enabling creation multifunctional copper–zinc alloy SEI. The SEI's superior electrical conductivity, zincophilic sites, ample free space, elevated surface energy facilitate homogeneous Zn nucleation deposition, thereby expediting electrochemical kinetics mitigates formation. Additionally, uniform suppresses corrosion hydrogen evolution reaction, augmenting deposition/dissolution reversibility. Consequently, Zn||Zn symmetric cells with additive exhibiting remarkable cycling over 5000 h at 0.5 mA cm–2, extraordinary average Coulombic efficiency 99.4% lifespan 1600 stable voltage hysteresis 2 cm–2 cm–2. This study proposes suitable high-performance
Язык: Английский
Процитировано
10