{"title":"超越传统:揭示锌阳极预处理对锌离子水电池的影响","authors":"Sanna Gull, Chi-Yu Lai, Wen-Hsuan Lu, Bushra Rehman, Wan-Ju Chiu, Han-Yi Chen","doi":"10.1039/d4ta03160a","DOIUrl":null,"url":null,"abstract":"Despite the simplicity and widespread use of conventional (untreated) Zn foil as a benchmark, conventional Zn foil continues to be the most common anode material in the research of zinc-ion batteries (ZIBs). However, there has been little focus on the inherent structure of the zinc foil itself. The traditional Zn anode has uneven rough surfaces that can lead to nonuniform charge distribution and hinder nucleation, thereby triggering the “tip effect” that can induce the formation of adverse dendrites. In this study, the conventional Zn foil was examined using simple pretreatments such as mechanical polishing and chemical etching that have the potential to substantially improve the electrochemical properties. Compared with bare Zn (b-Zn) and polished Zn (p-Zn), chemically etched Zn (e-Zn) sustained a remarkable life cycle of up to 5000 cycles with ∼71% cycling retention at a high current density of 5 A g<small><sup>−1</sup></small> using V<small><sub>2</sub></small>O<small><sub>5</sub></small>·<em>n</em>H<small><sub>2</sub></small>O as a cathode material. Besides, the e-Zn‖e-Zn symmetric cell exhibited excellent cycling stability over 300 cycles at a high current density of 10 mA cm<small><sup>−2</sup></small> with better inhibiting hydrogen production during Zn stripping/plating. Moreover, advanced characterizations such as <em>in situ</em> transmission X-ray microscopy (TXM) and <em>ex situ</em> atomic force microscopy (AFM) have been employed to gain insight into the early stages of Zn dendrite formation on Zn foils in mild acidic aqueous electrolytes during the plating/stripping processes. This superior performance of the e-Zn is attributed to its unique 3D structure that effectively accommodates Zn dendrites, as confirmed by XRD and EBSD analyses, which reveal Zn deposition along the (002) plane with lower surface energy as compared with other planes. This approach provides a straightforward and industrially scalable method for expanding ZIB utilization.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":null,"pages":null},"PeriodicalIF":10.7000,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Beyond conventional: unveiling the impact of Zn anode pretreatment in aqueous zinc-ion batteries\",\"authors\":\"Sanna Gull, Chi-Yu Lai, Wen-Hsuan Lu, Bushra Rehman, Wan-Ju Chiu, Han-Yi Chen\",\"doi\":\"10.1039/d4ta03160a\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Despite the simplicity and widespread use of conventional (untreated) Zn foil as a benchmark, conventional Zn foil continues to be the most common anode material in the research of zinc-ion batteries (ZIBs). However, there has been little focus on the inherent structure of the zinc foil itself. The traditional Zn anode has uneven rough surfaces that can lead to nonuniform charge distribution and hinder nucleation, thereby triggering the “tip effect” that can induce the formation of adverse dendrites. In this study, the conventional Zn foil was examined using simple pretreatments such as mechanical polishing and chemical etching that have the potential to substantially improve the electrochemical properties. Compared with bare Zn (b-Zn) and polished Zn (p-Zn), chemically etched Zn (e-Zn) sustained a remarkable life cycle of up to 5000 cycles with ∼71% cycling retention at a high current density of 5 A g<small><sup>−1</sup></small> using V<small><sub>2</sub></small>O<small><sub>5</sub></small>·<em>n</em>H<small><sub>2</sub></small>O as a cathode material. Besides, the e-Zn‖e-Zn symmetric cell exhibited excellent cycling stability over 300 cycles at a high current density of 10 mA cm<small><sup>−2</sup></small> with better inhibiting hydrogen production during Zn stripping/plating. Moreover, advanced characterizations such as <em>in situ</em> transmission X-ray microscopy (TXM) and <em>ex situ</em> atomic force microscopy (AFM) have been employed to gain insight into the early stages of Zn dendrite formation on Zn foils in mild acidic aqueous electrolytes during the plating/stripping processes. This superior performance of the e-Zn is attributed to its unique 3D structure that effectively accommodates Zn dendrites, as confirmed by XRD and EBSD analyses, which reveal Zn deposition along the (002) plane with lower surface energy as compared with other planes. This approach provides a straightforward and industrially scalable method for expanding ZIB utilization.\",\"PeriodicalId\":82,\"journal\":{\"name\":\"Journal of Materials Chemistry A\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":10.7000,\"publicationDate\":\"2024-09-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Chemistry A\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1039/d4ta03160a\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Chemistry A","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1039/d4ta03160a","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Beyond conventional: unveiling the impact of Zn anode pretreatment in aqueous zinc-ion batteries
Despite the simplicity and widespread use of conventional (untreated) Zn foil as a benchmark, conventional Zn foil continues to be the most common anode material in the research of zinc-ion batteries (ZIBs). However, there has been little focus on the inherent structure of the zinc foil itself. The traditional Zn anode has uneven rough surfaces that can lead to nonuniform charge distribution and hinder nucleation, thereby triggering the “tip effect” that can induce the formation of adverse dendrites. In this study, the conventional Zn foil was examined using simple pretreatments such as mechanical polishing and chemical etching that have the potential to substantially improve the electrochemical properties. Compared with bare Zn (b-Zn) and polished Zn (p-Zn), chemically etched Zn (e-Zn) sustained a remarkable life cycle of up to 5000 cycles with ∼71% cycling retention at a high current density of 5 A g−1 using V2O5·nH2O as a cathode material. Besides, the e-Zn‖e-Zn symmetric cell exhibited excellent cycling stability over 300 cycles at a high current density of 10 mA cm−2 with better inhibiting hydrogen production during Zn stripping/plating. Moreover, advanced characterizations such as in situ transmission X-ray microscopy (TXM) and ex situ atomic force microscopy (AFM) have been employed to gain insight into the early stages of Zn dendrite formation on Zn foils in mild acidic aqueous electrolytes during the plating/stripping processes. This superior performance of the e-Zn is attributed to its unique 3D structure that effectively accommodates Zn dendrites, as confirmed by XRD and EBSD analyses, which reveal Zn deposition along the (002) plane with lower surface energy as compared with other planes. This approach provides a straightforward and industrially scalable method for expanding ZIB utilization.
期刊介绍:
The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.