In situ engineering of a glutathione-derived hydrophobic layer for durable and dendrite-free Zn anodes

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137430 - 137430

Published: March 1, 2025

Language: Английский

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Constructing Lipid-Like Biomimetic Structure via Electrolyte Designation for Stable Zinc-Ion Batteries

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: April 6, 2025

Zinc-ion batteries (ZIBs) have attracted widespread attention in recent years. However, due to the aqueous electrolyte's high activity, zinc anode is affected by severe side reactions such as corrosion and hydrogen evolution, resulting poor reversibility. Inspired structure of a lipid bilayer biology, this paper, we introduce lithium nonafluorobutylsulfonate inhibit water activity via vigorous binding between S═O H2O form lipid-like protective on surface anode, thereby improving reversibility extending lifespan ZIBs. The biomimetic electrolyte demonstrated outstanding with 880 h cycle life 99.91% average Comlombic efficiency Zn||Cu asymmetric battery, well 2460 cumulative capacity 6 Ah cm-2 Zn||Zn symmetric battery (5 mA 5 mAh cm-2). In addition, full cells Zn0.25V2O5·nH2O MnO2 show excellent retention 91.67% after 1200 cycles 100% 1000 cycles, respectively. After ampere-hour-level pouch cell showed rate 93%. This method provides strategy for constructing electrolytes improve anodes.

Language: Английский

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A Mesoporous Ferroelectric Separator for Inner Helmholtz Plane Homogenization Enabling Zinc Anode with High Reversibility

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

Published: April 14, 2025

Abstract The aqueous zinc‐ion batteries (AZIBs) are emerging as highly promising electrochemical energy storage solutions, owing to their advantages in safety and cost‐effectiveness. However, the poor reversibility of zinc metal anode electrolytes is main bottleneck limiting practical application. In this study, an easily fabricated mesoporous ferroelectric separator designed significantly enhance introduced. fields generated by induce a uniform distribution hydrated ions between inner Helmholtz plane (IHP) on surface bulk electrolyte, which turn reduces reactivity parasitic reactions, such hydrogen evolution hydroxide formation. Meanwhile, reduction reactivity, coupled with increased ion diffusion barrier, benefits planar plating minimal dendrite Experimental evidence demonstrates that anode, equipped separator, achieves high standard 2 m ZnSO 4 stable stripping/plating observed over 4000 cycles at various current densities. This study thus presents novel for AZIBs effectively mitigates reactions growth regulating IHP structure, offers low‐cost pathway toward actual application AZIBs.

Language: Английский

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A thiol-modified solid electrolyte interphase enhances the stability of zinc anodes under high depths of discharge

Journal of Materials Chemistry A, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

By introducing TMPEI, a stable solid electrolyte interface layer is formed on the zinc anode surface, effectively enhancing cycling stability and long-term performance of anode.

Language: Английский

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Multiple Electrochemical Interfaces in Lithium-Ion Batteries: A Fluid Density Functional Theory Study

Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Language: Английский

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Mass Transfer Limitation within Molecular Crowding Electrolyte Reorienting (100) and (101) Texture for Dendrite‐Free Zinc Metal Batteries

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(34)

Published: June 4, 2024

Abstract Aqueous zinc metal batteries are emerging as a promising alternative for energy storage due to their high safety and low cost. However, development is hindered by the formation of Zn dendrites side reactions. Herein, macromolecular crowding electrolyte (MCE40) prepared incorporating polyvinylpyrrolidone (PVP) into aqueous solutions, exhibiting an enlarged electrochemical stability window anti‐freezing properties. Notably, through measurements characterizations, it discovered that mass transfer limitation near electrode surface within MCE40 inhibits (002) facets. This leads crystallographic reorientation deposition expose (100) (101) textures, which undergo “nucleation‐merge‐growth” process form uniform compact deposition. Consequently, enables highly reversible stable plating/stripping in Zn/Cu half cells over 600 cycles Zn/Zn symmetric 3000 hours at 1.0 mA cm −2 . Furthermore, Na 0.33 V 2 O 5 /Zn α‐MnO full display capacity sustained 500 room sub‐zero temperatures. study highlights novel mechanism achieving preferential deposition, introducing unique strategy fabricating dendrite‐free batteries.

Language: Английский

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Mass Transfer Limitation within Molecular Crowding Electrolyte Reorienting (100) and (101) Texture for Dendrite‐Free Zinc Metal Batteries

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(34)

Published: June 4, 2024

Abstract Aqueous zinc metal batteries are emerging as a promising alternative for energy storage due to their high safety and low cost. However, development is hindered by the formation of Zn dendrites side reactions. Herein, macromolecular crowding electrolyte (MCE40) prepared incorporating polyvinylpyrrolidone (PVP) into aqueous solutions, exhibiting an enlarged electrochemical stability window anti‐freezing properties. Notably, through measurements characterizations, it discovered that mass transfer limitation near electrode surface within MCE40 inhibits (002) facets. This leads crystallographic reorientation deposition expose (100) (101) textures, which undergo “nucleation‐merge‐growth” process form uniform compact deposition. Consequently, enables highly reversible stable plating/stripping in Zn/Cu half cells over 600 cycles Zn/Zn symmetric 3000 hours at 1.0 mA cm −2 . Furthermore, Na 0.33 V 2 O 5 /Zn α‐MnO full display capacity sustained 500 room sub‐zero temperatures. study highlights novel mechanism achieving preferential deposition, introducing unique strategy fabricating dendrite‐free batteries.

Language: Английский

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Promoting Preferential Zn (002) Deposition with a Low-Concentration Electrolyte Additive for Highly Reversible Zn-Ion Batteries

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(36), P. 47599 - 47609

Published: Aug. 29, 2024

Aqueous zinc-ion batteries have promising potential as energy storage devices due to their low cost and environmental friendliness. However, development has been hindered by zinc dendrite formation parasitic side reactions. Herein, we introduce a low-concentration sodium benzoate (NaBZ) electrolyte additive stabilize the electrode–electrolyte interface promote deposition on Zn (002) crystal plane. From experimental characterization computational analyses, NaBZ was found adsorb surface inhibit reactions while guiding homogeneous Consequently, Zn|Zn symmetric cells with cycled stably for over 1000 h at current density of 0.5 mA cm–2 an areal capacity mAh cm–2, Zn|Cu showed excellent reversibility Coulombic efficiency 99.05%. Moreover, Zn|Na0.33V2O5 full achieve high specific 124 g–1 cycling 600 2 A g–1. These findings present low-cost modification strategy reversible batteries.

Language: Английский

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Achieving reversible Mg chemistry by tunning electric double layer structure with highly-fluorinated asymmetric magnesium salt

Energy storage materials, Journal Year: 2024, Volume and Issue: unknown, P. 103943 - 103943

Published: Dec. 1, 2024

Language: Английский

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Designing Copolymeric SEI Layer Based on Click Reaction toward Ultralow N/P Ratio and Long Cycle Life Zinc Ion Batteries

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

Published: Dec. 20, 2024

Abstract Balancing interfacial interactions is critical to the reversibility and cycle stability of Zn ion batteries, as severe chemical corrosion undesirable hydrogen evolution reaction (HER) are inevitable for anode in aqueous electrolytes during charge/discharge process. Herein, a multi‐functional copolymeric solid/electrolyte interface (SEI) layer, self‐assembling on based click between epoxy silane thioalcohol, employed eliminate these side reactions. The dense robust SEI layer can not only physically repel water from surface effectively inhibit HER but also facilitate desolvation 2+ accelerate kinetic Additionally, it regulate flux induce preferred plating with (002) crystallographic orientation, enabling dendrite‐free deposition. As result, stable long life ≈200 h at depth discharge (DoD) 60% achieved. Zn||V 2 O 5 full cell delivers high specific capacity 165.2 mAh g −1 after 600 cycles an ultralow N/P ratio (the negative electrode positive electrode) 2.5. construction this provides new pathway development practical batteries.

Language: Английский

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