Chemical surface tuning of zinc metal anode toward stable,dendrite-less aqueous zinc-ion batteries

作     者：Pranav Kulkarni Sun-Sik Kim Hyun Young Jung Pranav Kulkarni;Sun-Sik Kim;Hyun Young Jung

作者机构：Department of Energy EngineeringGyeongsang National UniversityJinju-siGyeongnam 52725South Korea Department of Energy System EngineeringGyeongsang National UniversityJinju-siGyeongnam 52725South Korea 

出 版 物：《Journal of Energy Chemistry》 (能源化学(英文版))

年 卷 期：2023年第86卷第11期

页      面：1-8,I0001页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0808[工学-电气工程] 081704[工学-应用化学] 0817[工学-化学工程与技术] 08[工学] 0703[理学-化学] 

基　　金：supported by the Brain Pool Program funded by the Ministry of Science and ICT through the National Research Foundation of Korea(NRF-2021H1D3A2A02039346) 

主　　题：Dendrite free Peak-Valley surface Zinc-ion batteries Surface modification Fluorinated interface 

摘      要：The commercialization of Zn batteries is confronted with urgent challenges in the metal anode,such as dendrite formation,capacity loss,and cracking or ***,surface interfacial engineering of the Zn anode is introduced for achieving safety and dendritic-free cycling for high-performance aqueous Zn batteries through a simple but highly effective chemical etching-substitution *** chemical modification induces a rough peak-valley surface with a thin fluorine-rich interfacial layer on the Zn anode surface,which regulates the growth orientation via guiding uniform Zn plating/stripping,significantly enhances accessibility to aqueous electrolytes and improves wettability by reducing surface *** a result,such a synergetic surface effect enables uniform Zn plating/stripping with low polarization of 29 m V at a current density of 0.5 m A cm^(-2) with stable cyclic performance up to 1000 ***,a full cell composed of a fluorine-substituted Zn anode coupled with aβ-MnO_(2)or Ba-V_(6)O_(13)cathode demonstrates improved capacity retention to 1000 cycles compared to the pristine-Zn *** proposed valley deposition model provides the practical direction of surface-modified interfacial chemistries for improving the electrochemical properties of multivalent metal anodes via surface tuning.