Regulation of Zinc Hydroxide Sulfate Growth Environment for Stable Zinc Anode/Electrolyte Interfaces

作     者：Huang, Kaixin Zeng, Xianguang Zhang, Dan Wen, Chengyan Lu, Chao Wu, Wenjuan Guo, Yi Xing, Jie 

作者机构：Chengdu Univ Informat Technol Coll Optoelect Engn Chengdu 610225 Peoples R China Sichuan Univ Sci & Engn Coll Mat Sci & Engn Zigong 643000 Peoples R China Chengdu Univ Sch Mech Engn Chengdu 610106 Peoples R China Sichuan Univ Coll Mat Sci & Engn Chengdu 610064 Peoples R China 

出 版 物：《LANGMUIR》 (Langmuir)

年 卷 期：2025年第41卷第4期

页      面：2735-2743页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：Department of Science and Technology of Sichuan Province [2024NSFSC0955] Sichuan Science and Technology Program [2023CL02] Material Corrosion and Protection Key Laboratory of Sichuan Province Support Program [KYTZ202243] Scientific Research Foundation of Chengdu University of Information Technology [2024XXCL001] Open Research Project of Key Laboratory in University of Sichuan Province 

主　　题：Anodes 

摘      要：Metallic Zn is a promising anode for high-safety, low-cost, and large-scale energy storage systems. However, it is strongly hindered by unstable electrode/electrolyte interface issues, including zinc dendrite, corrosion, passivation, and hydrogen evolution reactions. In this work, an in situ interface protection strategy is established by turning the corrosion/passivation byproducts (zinc hydroxide sulfates, ZHSs) into a stable hybrid protection layer. The hydrolysis of the diglycolamine buffer layer on the zinc anode provides a homogeneous basic electrolyte environment for the generation of small-sized ZHS, thereby leading to the formation of a ZHS-based hybrid layer. Benefiting from this hybrid layer, uniform zinc ion flux and high anticorrosion ability can be achieved. As a result, the decorated symmetric cell presents a long cycling lifespan of over 1500 h at a current density of 1 mA cm-2 and an area capacity of 1 mAh cm-2. It also contributes to the appealing cycling and rate performance of Zn|NH4V4O10 full cells. This work provides insight into regulating and reusing interfacial byproducts for high-performance zinc metal batteries.