无机材料学报2026，Vol.41Issue(6)：823-830,中插3-中插4,10.DOI:10.15541/jim20250423
铜集流体晶面调控诱导锌均匀沉积的长循环水系锌碘电池
Long-cycling Aqueous Zinc-iodine Batteries with Uniform Zinc Deposition Regulated by Crystal Planes of Copper Current Collector
摘要
Abstract
Aqueous zinc-ion batteries hold considerable promise for grid-scale energy storage,capitalizing on their intrinsic safety and low cost.However,the practical deployment of these batteries is severely hampered by the uncontrollable growth of zinc dendrites on the anode during repeated plating/stripping cycles.As the substrate for zinc deposition,the interfacial properties of the current collector have a decisive impact on the zinc deposition behavior.Herein,a facile high-temperature annealing strategy to modulate the microstructure of a commercial copper current collector is reported.This reconstruction profoundly influences the zinc deposition mechanism and electrochemical performance.The results demonstrate that annealing treatment induces significant crystallographic reconstruction of the copper current collector,resulting in a preferred orientation dominated by the Cu(111)crystal plane and effectively reducing the dislocation density and surface defects.Theoretical calculations reveal that the Cu(111)facet provides both a low diffusion barrier for zinc adatoms and the lowest interfacial energy with the Zn(002)plane.This synergistic thermodynamic and kinetic regulation promotes uniform and epitaxial zinc deposition,effectively suppressing dendrite formation and guiding the preferential growth of a(002)-textured zinc layer.Consequently,the modified current collector achieves exceptional plating/stripping reversibility,supporting a prolonged cycle life of over 4000 cycles with an average Coulombic efficiency of 99.9%.When applied to the aqueous zinc-iodine full battery with a zinc-free anode,it maintains a capacity retention rate of over 82%after 700 cycles at a current density of 3 A·g-1.This work provides fundamental insights and a practical strategy for the design of high-performance current collectors through crystallographic and interfacial engineering.关键词
铜集流体/锌碘电池/晶面调控/高温退火Key words
copper current collector/zinc-iodine battery/facet control/high-temperature annealing分类
信息技术与安全科学引用本文复制引用
乔君毅,李涛,董鑫吉,杨涵戈,林天全..铜集流体晶面调控诱导锌均匀沉积的长循环水系锌碘电池[J].无机材料学报,2026,41(6):823-830,中插3-中插4,10.基金项目
上海市基础研究特区计划(BS0500036)Shanghai Basic Research Special Zone Program(BS0500036) （BS0500036）
