Authors
Yin Yang, Xiaofang Wang, Xin Chen, Jia Yao, Daigan Wang, Luyang Ge, Fei Wang, Lin Lv, Li Tao, Hao Wang, Houzhao Wan
Published in
Nano-micro letters. Volume 18. Issue 1. Jun 29, 2026. Epub Jun 29, 2026.
Abstract
Aqueous zinc-ion batteries are promising candidates for large-scale energy storage, yet their development is severely hindered by the interfacial instability of zinc anodes. Distinct from strategies employing pre-formed polymers, this work proposes an innovative monomer-induced in situ interface engineering strategy. By leveraging the preferential adsorption of acrylamide monomers on the Zn surface, a locally high-concentration region is created, which subsequently enables the in situ construction of a stable hydrated network interphase (HNI) triggered synergistically by Zn2+ and SO42- during electrochemical cycling. The HNI precisely regulates Zn deposition via a triple synergistic mechanism: Lewis acid-base coordination (C = O···Zn2+) provides fixed nucleation sites; dynamically anchored SO42- within the interphase forms negatively charged microregions that homogenize Zn2+ flux via Coulombic repulsion; and a dense hydrogen-bonding network effectively confines free water and suppresses side reactions. Benefiting from this multifunctional interphase, the Zn//Zn symmetric cell achieves an ultra-long cycling life of 8650 h (over 360 days) at 1 mA cm-2 with excellent reproducibility, the Zn//Ti cell delivers a high average Coulombic efficiency of 99.71% at 5 mA cm-2. The Zn//I2 full cell retains 89.15% of its capacity after 12,000 cycles. This work provides a novel paradigm for interfacial construction toward high-performance zinc metal anodes.
PMID:
42371358
Bibliographic data and abstract were imported from PubMed on 29 Jun 2026.
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