Authors
Xinyu Zhang, Jitao Shang, Ruwei Chen, Jianrui Feng, Hang Yang, Jingyi Wang, Fei Guo, Shuhui Li, Zijuan Du, Peie Jiang, Xiaoxia Guo, Wei Zhang, Jie Chen, Hongzhen He, Xuan Gao, Zhenjing Jiang, Bing Wang, Yuhang Dai, Guanjie He
Published in
Angewandte Chemie (International ed. in English). Pages e3251724. Jul 20, 2026. Epub Jul 20, 2026.
Abstract
Aqueous zinc metal batteries (AZMBs) are promising candidates for large-scale energy storage owing to their intrinsic safety. However, their lifespan is severely limited by side reactions such as dendrite growth and hydrogen evolution at the Zn-electrolyte interface. Conventional single-electrolyte-additive approaches are thermodynamically constrained, yielding only insufficient coverage of the inner-Helmholtz plane (IHP) and poor control of interfacial reactions. Here, we report an interfacial fluorinated-ion crowding strategy by simultaneously introducing multiple low-concentration fluorinated additives. Computational and spectroscopic analyses reveal that various-sized F-groups densely occupy the IHP, displacing water molecules and homogenizing Zn2+ flux. This emergent crowding effect, inaccessible to single-additive strategies, enables unprecedented interfacial regulation. Electrochemical tests demonstrate ultrastable Zn plating/stripping over 1200 h at 5 mA cm-2 and 1800 h at 10 mA cm-2, more than tenfold longer than the baseline electrolyte. This work establishes interfacial ion crowding as a powerful design principle, rooted in fundamental electrochemistry, offering a pathway toward high-performance and durable AZMBs.
PMID:
42473816
Bibliographic data and abstract were imported from PubMed on 20 Jul 2026.
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