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July 27, 2026Small

Decoupling Bulk Kinetics and Surface Stability: A Dual‐Regulation Strategy for High‐Performance Ammonium Vanadate Cathodes in Aqueous Zinc‐Ion Batteries

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Authors

HLHui LiWZWenbiao ZhangWLW Y Lin

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Overview

Randomized trial demonstrates enhanced performance in ammonium vanadate cathodes, suggesting advancements in energy storage technology.

Key Points

  • The study aims to address sluggish ion kinetics and structural degradation in ammonium vanadate cathodes for aqueous zinc-ion batteries.
  • Implemented a dual-modification strategy using hydronium ion substitution and PEDOT coating.
  • Conducted mechanistic and density functional theory (DFT) studies to analyze the impact of modifications on cathode performance.
  • Evaluated cathodes for specific capacity, rate capability, and cycling stability across 200 to 10,000 cycles.
  • NVO@PEDOT cathode achieved a specific capacity of 360.2 mAh g −1 and 110 mAh g −1 at 30 A g −1.
  • Retained 94.0% capacity after 200 cycles at 0.5 A g −1 and 69.2% after 10,000 cycles at 15 A g −1.
  • Demonstrated significant improvements in Zn 2+ diffusion and stability compared to unmodified cathodes.

Cite This Study

Li et al. (2026) studied this question.

synapsesocial.com/papers/6a67008840bca442e0d4a457https://doi.org/10.1002/smll.74692
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  3. 3PEDOT-Regulated Interfacial Engineering of Sodium Vanadium Oxide Nanostructures for High-Performance Aqueous Zinc-Ion Batteries2026
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  5. 5Three‐Dimensional Through‐Localized Amorphization Engineering of Crystalline/Amorphous Heterophase Ammonium Vanadate Nanobelts for Advanced Aqueous Zinc‐Ion Batteries2025 · 16 citations