Low-temperature replacement construction of three-dimensional corrosion-resistant interface for deeply rechargeable Zn metal batteries

作     者：Jinze Li Daniel Rohrens Gianluca Dalfollo Xiaochao Wu Ziheng Lu Qiang Gao Bo Han Ruimin Sun Chenggang Zhou Jindi Wang Zhao Cai Jinze Li;Daniel Röhrens;Gianluca Dalfollo;Xiaochao Wu;Ziheng Lu;Qiang Gao;Bo Han;Ruimin Sun;Chenggang Zhou;Jindi Wang;Zhao Cai

作者机构：Faculty of Materials Science and ChemistryChina University of GeosciencesWuhan430074China Institute of Inorganic ChemistryRWTH Aachen UniversityAachen52074Germany Microsoft Research AI4ScienceBeijing10080China Institute of New Energy on Chemical Storage and Power SourcesCollege of Applied Chemistry and Environmental EngineeringYancheng Teachers UniversityYancheng224000China 

出 版 物：《Nano Materials Science》 (纳米材料科学（英文版）)

年 卷 期：2024年第6卷第3期

页      面：329-336页

核心收录：

学科分类：080503[工学-材料加工工程] 0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：financially supported by the National Natural Science Foundation of China (No.22205068,22109144) the“CUG Scholar”Scientific Research Funds at China University of Geosciences (Wuhan) (Project No.2022118) the Fundamental Research Funds for the Central Universities,China University of Geosciences (Wuhan) (No.162301202673) 

主　　题：Aqueous batteries Foil electrodes Depth of discharge Dendrites Corrosion side reactions 

摘      要：Aqueous Zn batteries are promising candidates for grid-scale renewable energy *** electrodes have been widely investigated and applied as anode materials for aqueous Zn batteries,however,they suffer from limited surface area and severe interfacial issues including metallic dendrites and corrosion side reactions,limiting the depth of discharge(DOD)of the foil electrode ***,a low-temperature replacement reaction is utilized to in-situ construct a three-dimensional(3D)corrosion-resistant interface for deeply rechargeable Zn foil ***,the deliberate low-temperature environment controlled the replacement rate between polycrystalline Zn metal and oxalic acid,producing a Zn foil electrode with distinct 3D corrosion-resistant interface(3DCI-Zn),which differed from conventional two-dimensional(2D)protective structure and showed an order of magnitude higher surface ***,the 3DCI-Zn electrode exhibited dendrite-free and anticorrosion properties,and achieved stable plating/stripping performance for 1000 h at 10 mA cm^(-2)and 10 mAh cm^(-2)with a remarkable DOD of 79%.After pairing with a MnO2cathode with a high areal capacity of 4.2 mAh cm^(-2),the pouch cells delivered 168 Wh L^(-1)and a capacity retention of 89.7%after 100 cycles with a low negative/positive(N/P)ratio of 3:1.