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<p>Aqueous zinc (Zn)-ion batteries hold great promise as renewable energy storage system for carbon–neutral energy transition. However, Zn anodes suffer from poor Zn plating/stripping reversibility due to Zn dendrite growth and side reactions. Existing Zn interfacial modification strategies based on single-component or homogeneous structure are insufficient to address these issues comprehensively. Herein, we rationally designed an organic–inorganic hybrid interfacial layer with rigid-to-soft graded structure for dendrite-free and stable Zn anodes. A liquid plasma-assisted oxidation technology is developed to rapidly construct a porous ZnO inner framework in situ. This ZnO layer offers high interfacial energy, mechanical robustness, and an open structure that facilitates ion transport while firmly anchoring a subsequently coated soft polymer layer. The resulting architecture presents a structurally graded and functionally complementary interface, enabling effective dendrite suppression, continuous Zn ion transport, and enhanced corrosion resistance. As a result, a long cycling stability of more than 6000&#xa0;h can be achieved at 1&#xa0;mA&#xa0;cm<sup>−2</sup> for 1 mAh cm<sup>–2</sup> in symmetric cells. When used as anodes for zinc-iodine full battery, the hybrid interlayer can effectively prevent the Zn anodes from the corrosion by polyiodine, enabling stable cycling and negligible capacity decay (~ 0.02‰ per cycle)&#xa0;for over 10,000 cycles at 2.0&#xa0;A g<sup>−1</sup>. This work demonstrates a promising interfacial design strategy and introduces a novel liquid plasma-assisted oxidation route for fabricating high-performance Zn anodes towards next-generation aqueous batteries. </p>

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A Rigid–Soft Graded Organic–Inorganic Interlayer for Durable and Corrosion-Resistant Zinc Anodes

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月5日

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  • Zhiyu Wang,
  • Junlun Cao,
  • Zixuan Yang,
  • Jianli Cheng,
  • Dan Liu,
  • Weiwei Lei

摘要

Aqueous zinc (Zn)-ion batteries hold great promise as renewable energy storage system for carbon–neutral energy transition. However, Zn anodes suffer from poor Zn plating/stripping reversibility due to Zn dendrite growth and side reactions. Existing Zn interfacial modification strategies based on single-component or homogeneous structure are insufficient to address these issues comprehensively. Herein, we rationally designed an organic–inorganic hybrid interfacial layer with rigid-to-soft graded structure for dendrite-free and stable Zn anodes. A liquid plasma-assisted oxidation technology is developed to rapidly construct a porous ZnO inner framework in situ. This ZnO layer offers high interfacial energy, mechanical robustness, and an open structure that facilitates ion transport while firmly anchoring a subsequently coated soft polymer layer. The resulting architecture presents a structurally graded and functionally complementary interface, enabling effective dendrite suppression, continuous Zn ion transport, and enhanced corrosion resistance. As a result, a long cycling stability of more than 6000 h can be achieved at 1 mA cm−2 for 1 mAh cm–2 in symmetric cells. When used as anodes for zinc-iodine full battery, the hybrid interlayer can effectively prevent the Zn anodes from the corrosion by polyiodine, enabling stable cycling and negligible capacity decay (~ 0.02‰ per cycle) for over 10,000 cycles at 2.0 A g−1. This work demonstrates a promising interfacial design strategy and introduces a novel liquid plasma-assisted oxidation route for fabricating high-performance Zn anodes towards next-generation aqueous batteries.