首页|Anti-Corrosion and Reconstruction of Surface Crystal Plane for Zn Anodes by an Advanced Metal Passivation Technique

Anti-Corrosion and Reconstruction of Surface Crystal Plane for Zn Anodes by an Advanced Metal Passivation Technique

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For the aqueous Zn-ion battery,dendrite formation,corrosion,and interfacial parasitic reactions are major issues,which greatly inhibits their practical application.How to develop a method of Zn construction or treatment to solve these issues for Zn anodes are still great challenges.Herein,a simple and cheap metal passivation technique is proposed for Zn anodes from a corrosion science perspective.Similar to the metal anti-corrosion engineering,the formed interfacial protective layer in a chemical way can sufficiently solve the corrosion issues.Furthermore,the proposed passivity approach can reconstruct Zn surface-preferred crystal planes,exposing more(002)planes and improving surface hydrophilicity,which inhibits the formation of Zn dendrites and hydrogen evolution effectively.As expected,the passivated Zn achieves outstanding cycling life(1914 h)with low voltage polarization(＜40 mV).Even at 6 mA cm-2 and 3 mA h cm-2,it can achieve stable Zn deposition over 460 h.The treated Zn anode coupled with MnO2 cathode shows prominently reinforced full batteries service life,making it a potential Zn anode candidate for excellent performance aqueous Zn-ion batteries.The proposed passivation approach provides a guideline for other metal electrodes preparation in various batteries and establishes the connections between corrosion science and batteries.

anti-corrosionaqueous zinc ion batteryinterfacial protective layermetal passivation techniquereconstruction of surface crystal plane

Si Liu、Hongxin Lin、Qianqian Song、Jian Zhu、Changbao Zhu

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State Key Laboratory of Optoelectronic Materials and Technologies,Department of Materials Science and Engineering,Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education,Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices,Sun Yat-Sen University,Guangzhou 510275,China

National Key R&D Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaFundamental Research Funds for the Central UniversitiesGuangdong Pearl River Talents PlanNational Thousand Youth Talents Project of the Chinese Government

2018YFB0905400220753315170237619lgzd022019QN01L117

2023

10.1002/eem2.12405

能源与环境材料(英文)

能源与环境材料(英文)

CSCD
ISSN：
年,卷(期)：2023.6(4)
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