Yuxin Yuan, Jianping Chen, Tianyue Qian, Bowen Zhang, Ke Ye, Ruimin Li, Xiaowei Yang
{"title":"Hydrogen Atom Capture Toward Dense Solid Electrolyte Interface for Long-Cycling Aqueous Zinc-Ion Batteries.","authors":"Yuxin Yuan, Jianping Chen, Tianyue Qian, Bowen Zhang, Ke Ye, Ruimin Li, Xiaowei Yang","doi":"10.1002/anie.202513722","DOIUrl":null,"url":null,"abstract":"<p><p>Aqueous zinc-ion batteries (AZIBs) are promising high-safety energy storage devices, but their practical implementation has been limited by dendrite growth and hydrogen evolution reaction (HER). Solid-electrolyte interface (SEI) is expected to address these problems. Herein, we revealed that HER results in loose and porous interfacial structure, making the in situ construction of reliable SEI a challenge. Thus, a universal and effective hydrogen atom scavenging strategy is proposed to in situ construct a dense and uniform inorganic SEI by introducing potassium persulfate (PSS). PSS scavenges the adsorbed hydrogen atoms, thus inhibiting HER. Meanwhile, PSS is reduced into SO<sub>4</sub> <sup>2-</sup> and participates in the formation of zinc hydroxide sulfates (ZHS). With no interference of H<sub>2</sub> bubbles on ZHS crystallization, an ideal SEI is constructed. This ZHS-SEI exhibits superior electronic insulation, effectively suppressing further HER and Zn dendrite growth during cycling. As a result, the Zn//Zn symmetric cell with PSS can achieve stable Zn plating/stripping for 1882 h at 5 mA cm<sup>-2</sup> and 2.5 mAh cm<sup>-2</sup> and 650 h at 10 mA cm<sup>-2</sup> and 5 mAh cm<sup>-2</sup>, respectively. The cycling stability of the Zn||NVO full cell is also significantly improved at 5 A g<sup>-1</sup>. This work provides a novel perspective for stabilizing the zinc anode interface.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202513722"},"PeriodicalIF":16.9000,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Angewandte Chemie (International ed. in English)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/anie.202513722","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Aqueous zinc-ion batteries (AZIBs) are promising high-safety energy storage devices, but their practical implementation has been limited by dendrite growth and hydrogen evolution reaction (HER). Solid-electrolyte interface (SEI) is expected to address these problems. Herein, we revealed that HER results in loose and porous interfacial structure, making the in situ construction of reliable SEI a challenge. Thus, a universal and effective hydrogen atom scavenging strategy is proposed to in situ construct a dense and uniform inorganic SEI by introducing potassium persulfate (PSS). PSS scavenges the adsorbed hydrogen atoms, thus inhibiting HER. Meanwhile, PSS is reduced into SO42- and participates in the formation of zinc hydroxide sulfates (ZHS). With no interference of H2 bubbles on ZHS crystallization, an ideal SEI is constructed. This ZHS-SEI exhibits superior electronic insulation, effectively suppressing further HER and Zn dendrite growth during cycling. As a result, the Zn//Zn symmetric cell with PSS can achieve stable Zn plating/stripping for 1882 h at 5 mA cm-2 and 2.5 mAh cm-2 and 650 h at 10 mA cm-2 and 5 mAh cm-2, respectively. The cycling stability of the Zn||NVO full cell is also significantly improved at 5 A g-1. This work provides a novel perspective for stabilizing the zinc anode interface.