Biomimetic Quasi‐Skin‐Capillary Structure Engineering of Ionic‐Electronic Conducting Full‐Chain Networks for Stable Zinc Powder Anodes

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

Published: Sept. 27, 2024

Abstract Compared with prevailing Zn foil, powders (ZnP) special‐shaped tunability and large‐scale processability are considered promising anodes for propelling batteries, but face the issue of discrete contact between particles due to their intrinsic monodispersed geometries. Here a novel biomimetic quasi‐skin‐capillary ZnP anode ionic‐electronic conducting full‐chain networks (ZnP‐FC) is designed, characterized by an aramid nanofiber (ANF) surface coating (skin) ZnP‐ANF interwoven inner skeleton (capillary). The epidermal not only stabilizes anode/electrolyte interface homogenize 2+ flux shields direct H 2 O also extends inward as capillary‐like adhesive anchor affords high selectivity boosting plating/stripping efficiency. Benefiting from these favorable attributes, ZnP‐FC||ZnP‐FC cell enables kinetics stable ion migration afford long‐term operation over 1650 h at 5 mA cm −2 . Moreover, ZnP‐FC||KV 12 30‐ y ·nH full battery harvests high‐rate capability (15 A g −1 ) ultralong cyclic stability (6000 cycles). This work structural engineering landscape powder advanced batteries.

Language: Английский

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Recent progress in carbon nanomaterials for highly flexible fibrous aqueous zinc-ion batteries

Nanoscale Advances, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Based on its unique one-dimensional configuration, great flexibility and high safety, fibrous aqueous batteries have been recognized as a promising candidate for energy sources of wearable electronics with the feature carbon nanomaterials.

Language: Английский

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Cellulose-Based Hydrogel with Fast Ion Transport Kinetics Inducing Flat Grain-Stacking Plating for Aqueous Zinc Metal Batteries

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 13(1), P. 386 - 395

Published: Dec. 30, 2024

Hydrogel electrolytes have distinguished themselves in aqueous zinc metal batteries due to their strong designability and diverse functions, especially inducing even deposition inhibiting side reactions. While the high water content of hydrogel can enhance Zn2+ ionic conductivity, it also tends exacerbate undesirable water-related reactions; thus, how realize fast ion transport kinetics under low remains a challenge. This work introduces carboxylated cellulose nanofibers with ample diversified polar functional groups into cross-linking polyacrylamide networks form electrolytes. The hydrophilic nanofibers, including carboxyl, hydroxyl, inter/intramolecular ether bonds, not only grasp molecules facilitate desolvation [Zn(H2O)6]2+ but disperse single-site binding energy through multiple adjacent O atoms, effectively reconciling conflicting demands conductivity content. Beyond favorable mechanical properties, as-prepared induce flat grain-stacking deposition, mitigate reactions, suppress polyiodide shuttling. Consequently, symmetric/asymmetric zinc–iodine demonstrate much improved electrochemical performance. provides reference for intricately designing specific functions by screening molecular structures components.

Language: Английский

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Structural Design Strategies of Zinc Powder Anode towards Rechargeable Zinc-based Batteries

Energy storage materials, Journal Year: 2024, Volume and Issue: unknown, P. 103934 - 103934

Published: Nov. 1, 2024

Language: Английский

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Comprehensive review for zinc powder anodes: Significance, optimizing design, and industrial feasibility in zinc-ion batteries

Energy storage materials, Journal Year: 2024, Volume and Issue: 74, P. 103917 - 103917

Published: Nov. 26, 2024

Language: Английский

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