Stabilization of zinc anode by trace organic corrosion inhibitors for long lifespan  

作　　者：Wenfeng Shao Chuanlin Li Chenggang Wang Guangsen Du Shunshun Zhao Guangmeng Qu Yupeng Xing Tianshuo Guo Hongfei Li Xijin Xu 

机构地区：[1]School of Physics and Technology,University of Jinan,Ji’nan 250022,China [2]State Key Laboratory of Chemical Resource Engineering,Beijing University of Chemical Technology,Beijing 100029,China [3]School of Chemistry and Chemical Engineering,Shandong University,Ji’nan 250100,China [4]School of System Design and Intelligent Manufacturing,Southern University of Science and Technology,Shenzhen 518000,China

出　　处：《Chinese Chemical Letters》2025年第3期538-543,共6页中国化学快报(英文版)

基　　金：financially supported by Joint Funds of the National Natural Science Foundation of China(No.U22A20140);the National Natural Science Foundation of China(No.22379062);supported by Shenzhen Stable Support Plan Program for Higher Education Institutions Research Program(No.20220816131408001);Shenzhen Science and Technology Program(No.JCYJ20230807091802006)。

摘　　要：Aqueous zinc-ion batteries are highly favored for their enhanced safety and reduced cost.However,there exist challenges including zinc dendrite,hydrogen evolution,and surface corrosion to be solved.Using electrolyte additives is a highly convenient approach to solving zinc anode-related issues.Inspired by industrial corrosion protection,a trace amount of the corrosion inhibitor urotropine(URT)is used as an electrolyte additive to protect the zinc anode.Theoretical calculation and experimental analysis confirm the adsorption of URT molecules onto the surface of Zn,which inhibits hydrogen evolution.This adsorption further leads to the formation of an inorganic-organic bilayer solid electrolyte interface(SEI)on the surface of the zinc anode,effectively protecting the Zn anode from corrosion,hydrogen evolution and zinc dendrites.The presence of SEI enables symmetrical Zn//Zn cells to exhibit a long cycling performance of 1750 h at 1mA/cm^(2)and an average coulombic efficiency of 99.0%at 1mA/cm^(2)in Zn//Cu cells.After being coupled with polyaniline(PANI),the Zn//PANI full battery displays excellent cycle stability and specific capacity.

关 键 词：Solid electrolyte interface Aqueous zinc-ion battery Corrosion inhibitors Electrolyte additive Zinc anode 

分 类 号：TM911.41[电气工程—电力电子与电力传动] TM912