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Monometallic Zn is a promising anode material for post-lithium batteries owing to its high theoretical capacity, low cost and natural abundance. However, the practical application in zinc–air batteries (ZABs) remain limited by uncontrollable dendrite growth and severe voltage polarization during repeated cycling. Herein, we report a self-supported Sb-modified porous lamellar zincophilic electrode (Sb-pZn) as a reversible, dendrite-free and high-performance hostless Zn anode for aqueous alkaline rechargeable ZABs. The porous lamellar framework is fabricated by selectively dissolving the Al component from the eutectic Zn–Al alloy via chemical dealloying, followed by surface modification through galvanic replacement in SbCl3 solution. The Sb-pZn anode with lamellar thickness of ~2920 nm (Sb-pZn-2920) enables continuous electron and ion transport pathways through quasi-periodic lamellar channels and interconnected ligament network, ensuring uniform Zn deposition and dissolution. Moreover, Sb incorporation introduces abundant zincophilic sites that accelerate charge-transfer kinetics and enhance reversibility. As a result, the Sb-pZn-2920 anode shows exceptional Zn plating-stripping behaviours with ultralow overpotential of 31.7 mV for up to 1700 h at 2 mA cm−2 in symmetric cells and maintains stable charge–discharge cycling for 240 cycles at 20 mA cm−2 under ambient conditions in ZAB full cells. This work presents a facile and scalable strategy for constructing high-performance Zn anodes and offers valuable insights into the development of practical, durable and reversible ZABs.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: metal-air batteries, Zn anode, dendrite-free, surface modification, structural design, cycle stability

刊行年月日: 2026-12-31

出版者: Taylor & Francis

掲載誌:

• Science and Technology of Advanced Materials (ISSN: 14686996) vol. 27 issue. 1 2658327

研究助成金:

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.6307

公開URL: https://doi.org/10.1080/14686996.2026.2658327

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更新時刻: 2026-05-21 11:53:02 +0900

MDRでの公開時刻: 2026-05-21 14:27:38 +0900