Hydrophobic Ion Barrier‐Enabled Ultradurable Zn (002) Plane Orientation towards Long‐Life Anode‐Less Zn Batteries

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: July 8, 2024

Gradual disability of Zn anode and high negative/positive electrode (N/P) ratio usually depreciate calendar life energy density aqueous batteries (AZBs). Herein, within original

Language: Английский

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Biomass Chitin Nanofiber Separators Proactively Stabilizing Zinc Anodes for Dendrite‐Free Aqueous Zinc‐Ion Batteries

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

Published: July 5, 2024

Abstract Aqueous zinc‐ion batteries (ZIBs) have generated extensive research attention for stationary energy storage, due to their advantaged superiority in terms of inherent safety, low cost, and eco‐friendliness. However, uncontrollable dendrite growth side reactions the Zn anode affect cycle life ZIBs. Conventional separators are almost ineffective inhibiting these issues. Herein, a chitin nanofiber membrane separator is developed tackle issues via simple, low‐cost, scalable strategy. The obtained exhibits abundant zincophilic functional groups, homogeneous nanopores, excellent mechanical properties, which facilitate desolvation hydrated 2+ ions, improve transference number, homogenize ion flux, simultaneously. Moreover, can also reduce deposition barrier, accelerate kinetics. Therefore, dendrites harmful effectively synchronously suppressed, enabling assembled ZIBs with an ultralong good rate capability. Impressively, Zn‐MnO 2 pouch cell stability safety under various external damages. above highlights mark significant step toward practical application

Language: Английский

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A Water‐Insoluble Yttrium‐Based Complex as Dual‐Ionic Electrolyte Additive for Stable Aqueous Zinc Metal Batteries

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

Published: June 14, 2024

Abstract Aqueous batteries employing Zinc metal anodes (ZMAs) are considered to be promising next‐generation energy storage systems. However, the severe interfacial side reactions and dendrite growth restrict practical application of ZMAs in aqueous electrolytes. Herein, a water‐insoluble dual‐ionic electrolyte additive yttrium 2,4,5‐trifluorophenylacetate (YTFPAA) is developed stabilize ZMAs. Notably, ethanol‐solvated TFPAA − can capture H + thus buffer decreased pH caused by hydrolysis Y 3+ . Furthermore, dynamically adsorb onto surface through reversible oxidation‐reduction reaction, effectively suppressing forming water‐poor interface, enhancing reversibility Zn 2+ deposition/stripping redistributing flux. These favorable effects combined with dynamic electrostatic shielding effect ultimately enable uniform dense deposition. As result, Zn/Zn cells assembled 0.25YTFPAA exhibit an impressive cycle life 2100 h at 0.5 mA cm −2 –0.25 mAh More importantly, V 2 O 5 /Zn full cell shows ultra‐long up 18000 cycles 5.0 A g −1 This work highlights rational design multifunctional ionic additives for stabilizing

Language: Английский

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Nickel silicate nanotubes modifying the surface of Zn anode tuning the uniform zinc deposition for high-performance Zn metal battery

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 686, P. 878 - 887

Published: Feb. 4, 2025

Language: Английский

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Biomimetic Inorganic–Organic Protective Layer for Highly Stable and Reversible Zn Anodes

ACS Energy Letters, Journal Year: 2024, Volume and Issue: unknown, P. 337 - 344

Published: Dec. 20, 2024

Uncontrollable dendrite growth and severe parasitic side reactions on Zn electrodes pose formidable challenges for the application of aqueous Zn-ion batteries. Herein, we engineered a biomimetic inorganic–organic protective layer composed alginic acid lithium magnesium silicate to enhance stability reversibility electrode. This not only diminishes free water concentration near surface but also creates negatively charged ion microchannels transport ions modulate solvation structure. Moreover, robust Mg-SiO2 interphase with high Young's modulus strong zincophilicity can be formed between electrode layer, facilitating uniform deposition along Zn(002) planes. Consequently, this allows achieve impressive cycling lifespan 5500 h at 1 mA cm–2/1 mAh cm–2 Coulombic efficiency 99.5% delivers remarkable cyclability up 8000 cycles in Zn||V2O5 full cells.

Language: Английский

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Expediting ion migration and stabilizing interface deposition through pre-polarized ion channels for zinc-ion batteries

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(19), P. 11535 - 11543

Published: Jan. 1, 2024

A pre-polarized ion channels are constructed to inhibit the tip effect and selectively accelerate transport, achieving stable uniform deposition, suppressing dendrite growth side reaction for long-term Zn striping/plating.

Language: Английский

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Guiding uniform zinc ion flux with 18-Crown-6 additives for highly reversible Zn metal anodes

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 494, P. 152852 - 152852

Published: June 5, 2024

Language: Английский

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Surface engineering of zinc plate by self-growth three-dimensional-interconnected zinc silicate nanosheets effectively guiding the deposition of zinc ion for aqueous Zn metal battery

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 673, P. 70 - 79

Published: June 8, 2024

Language: Английский

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Three-dimensional cross-linked interface with high ionic transference number and electrical conductivity for high-performance aqueous Zn-ion batteries

Solid State Ionics, Journal Year: 2025, Volume and Issue: 421, P. 116790 - 116790

Published: Jan. 31, 2025

Language: Английский

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In-situ construction of Ag protective layer with trace amount of electrolyte additive towards highly reversible Zn anode

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 633, P. 236436 - 236436

Published: Feb. 4, 2025

Language: Английский

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