Uncontrolled dendrite and side reactions of aqueous zinc ion batteries(AZIBs)hinder their commercial application.To overcome these obstacles,a novel zinc alloy anode for multifunctional AZIBs was designed by incorpora...Uncontrolled dendrite and side reactions of aqueous zinc ion batteries(AZIBs)hinder their commercial application.To overcome these obstacles,a novel zinc alloy anode for multifunctional AZIBs was designed by incorporating metal elements into the zinc anode.The metal elements are intended to improve the overall electrochemical performance of the battery by solving the zinc anode problem in an"incorpo-ration"manner.In this study,the effect of Sn-induced surface structure reconstruction on the diffusion and deposition behavior of Zn2+was investigated using binary zinc alloy(Zn@Sn)as a zinc anode.The zinc anode with Zn(002)crystal plane as the preferred crystal plane was able to inhibit the disordered growth of zinc dendrites,and the introduction of Sn elements enhanced the anti-hydrogen evolution re-action ability of the zinc anode.At a current density of 1.2 mA cm-2,the Zn@Sn symmetric cell was able to maintain stable operation for 1000 h,demonstrating a more prominent deposition/stripping stability.This work provides a promising strategy and new insights into the design of electrolyte-anode interfacial protection.展开更多
Aqueous zinc-ion batteries(AZIBs)have attracted significant attention due to their high energy density,low cost,high efficiency,and environmental friendliness.Nevertheless,the development of AZIBs has been significant...Aqueous zinc-ion batteries(AZIBs)have attracted significant attention due to their high energy density,low cost,high efficiency,and environmental friendliness.Nevertheless,the development of AZIBs has been significantly hindered by the unavoidable issues with zinc dendrites and the side reactions of the anode.The strategies for stable and controllable interfacial regulation have recently made rapid progress,due to their dual function of improving zinc ion transport dynamics and preventing direct contact of zinc with electrolytes.Therefore,it's imperative to conduct a comprehensive summary of the interfacial regulation of zinc anodes and to engage in in-depth research into the underlying mechanisms.Subsequently,the interfacial regulation was classified based on battery structure,including anode coating strategy,electrolyte engineering,and separator optimization.Eventually,the current limitations of interfacial regulation and a deep outlook on AZIBs interface engineering are summarized.展开更多
基金the National Natural Science Foundation of China(No.22304055)the Natural Science Foundation of Hebei Province(Nos.D2023209012,B2022209026)the Science and Technology Project of Hebei Education Department(No.JZX2024026).
文摘Uncontrolled dendrite and side reactions of aqueous zinc ion batteries(AZIBs)hinder their commercial application.To overcome these obstacles,a novel zinc alloy anode for multifunctional AZIBs was designed by incorporating metal elements into the zinc anode.The metal elements are intended to improve the overall electrochemical performance of the battery by solving the zinc anode problem in an"incorpo-ration"manner.In this study,the effect of Sn-induced surface structure reconstruction on the diffusion and deposition behavior of Zn2+was investigated using binary zinc alloy(Zn@Sn)as a zinc anode.The zinc anode with Zn(002)crystal plane as the preferred crystal plane was able to inhibit the disordered growth of zinc dendrites,and the introduction of Sn elements enhanced the anti-hydrogen evolution re-action ability of the zinc anode.At a current density of 1.2 mA cm-2,the Zn@Sn symmetric cell was able to maintain stable operation for 1000 h,demonstrating a more prominent deposition/stripping stability.This work provides a promising strategy and new insights into the design of electrolyte-anode interfacial protection.
基金supported by Central Guided Local Science and Technology Development Funds Project of Hebei Province(No.246Z4414G)the Natural Science Foundation of Hebei Province(No.E2020209151,E2022209158,H2022209012)+3 种基金Science and Technology Project of Hebei Education Department(No.BJK2024039)Youth Scholars Promotion Plan of North China University of Science and Technology(No.QNTJ202309)the Open Fund of Jiangxi Province Key Laboratory of Synthetic Chemistry(No.JXSC202001)Innovation Capacity Enhancement Projects of Hebei Province(No.22567608H).
文摘Aqueous zinc-ion batteries(AZIBs)have attracted significant attention due to their high energy density,low cost,high efficiency,and environmental friendliness.Nevertheless,the development of AZIBs has been significantly hindered by the unavoidable issues with zinc dendrites and the side reactions of the anode.The strategies for stable and controllable interfacial regulation have recently made rapid progress,due to their dual function of improving zinc ion transport dynamics and preventing direct contact of zinc with electrolytes.Therefore,it's imperative to conduct a comprehensive summary of the interfacial regulation of zinc anodes and to engage in in-depth research into the underlying mechanisms.Subsequently,the interfacial regulation was classified based on battery structure,including anode coating strategy,electrolyte engineering,and separator optimization.Eventually,the current limitations of interfacial regulation and a deep outlook on AZIBs interface engineering are summarized.
