An Amphipathic Ionic Sieve Membrane for Durable and Dendrite-Free Zinc-Ion Batteries  

作　　者：Xian-Xiang Zeng Shu Zhang Tao Long Qing-Yuan Zhao Hong-Rui Wang Wei Ling Xiong-Wei Wu Aiping Yu Zhongwei Chen 

机构地区：[1]School of Chemistry and Materials Science,Hunan Agricultural University,Changsha 410128 [2]Department of Chemical Engineering,University of Waterloo,Waterloo,Ontario N2L 3G1 [3]National Key Laboratory of Catalytic Energy Conversion,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023

出　　处：《Renewables》2024年第1期52-60,共9页可再生能源（英文）

基　　金：supported by the National Natural Science Foundation of China(grant no.51803054);the Science and Technology Innovation Program of Hunan Province,China(grant no.2023RC3154);the Natural Science Foundation of Hunan Province(grant no.2020JJ3022);the scientific research projects of Education Department of Hunan Province(grant nos.23A0188 and 23B0221);the Natural Sciences and Engineering Research Council of Canada,University of Waterloo and Waterloo Institute for Nanotechnology,Canada.

摘　　要：Rechargeable aqueous zinc-ion batteries are expected to be widely deployed for grind-scale energy storage due to the merits of low expenditure,safety,and so on.However,challenges on the Zn anode,including dendrite growth and parasitic reactions with aqueous electrolytes hinder its advancement.Hereby,an amphipathic ionic sieve(AIS)membrane was designed to screen Zn^(2+)from the bulk of aqueous electrolyte by ruling out water solvent and assisting Zn^(2+)to deposit with a smooth morphology under a confined shielding.These benign characteristics enabled AIS to run Zn symmetric cells over 2300 h with a voltage of 1 mA h·cm^(−2) at each cycle and tolerated long-term standby for more than 3 months.A low self-discharge rate and outstanding cycling stability were realized in V_(2)O_(5)/Zn batteries at equal weight for cathode and anode(N/P ratio≈1.39).This asymmetrical wetting separator proved a facile strategy to solve interfacial dendrites and parasitic reactions in Zn metal-based batteries.

关 键 词：zinc anode DENDRITE amphipathicity DESOLVATION SEPARATOR 

分 类 号：TM912[电气工程—电力电子与电力传动]