Structure Engineering by Picosecond Laser Lithography Boosts Highly Reversible Zn Anode

作     者：Zhan, Shengkang Liu, Zixuan Ning, Fanghua Liu, Xiaoyu Dai, Ye Lu, Shigang Xia, Yongyao Yi, Jin 

作者机构：Shanghai Univ Dept Phys Inst Sustainable Energy Coll Sci Shanghai 200444 Peoples R China Fudan Univ Dept Chem Shanghai 200433 Peoples R China Fudan Univ Inst New Energy Shanghai 200433 Peoples R China 

出 版 物：《ADVANCED FUNCTIONAL MATERIALS》 (Adv. Funct. Mater.)

年 卷 期：2025年第35卷第12期

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：National Natural Science Foundation of China Natural Science Foundation of Shanghai [23ZR1423400] 22075171 12274280 21935003 22379090 

主　　题：aqueous Zn-ion batteries micro-nano structure picosecond laser lithography structure engineering zinc anode 

摘      要：The practical application of aqueous zinc ion batteries (AZIBs) is impeded by the instability of the Zn anode|electrolyte interface, including dendrite growth, hydrogen evolution reaction (HER), and corrosion. Herein, the periodical micro-nano structure is constructed on the surface of Zn anode through picosecond laser lithography (PLL) technology. This micro-nano surface structure is conductive to obtain hydrophobicity for diminishing direct contact between the electrolyte and Zn anode, enhancing the corrosion resistance of the Zn anode. Simultaneously, the low surface energy and reconstructed electric field are achieved through laser-induced texture microstructure, leading to the oriented Zn2+ deposition along the (002) plane. As a result, the lower electrochemical polarization and long cycling stability of 1400 h for Zn||Zn symmetric cell is achieved at 4 mA cm-2 and 2 mAh cm-2. The average coulombic efficiency (CE) of the Zn||Cu cell is enhanced to 99.83% at 2 mA cm-2, while the Zn||MnO2 cell delivers a capacity retention of 68.7% after 600 cycles at 1 A g-1. Consequently, the advantages of micro-nano structure can highlight the importance of surface structure design for the development of stable Zn anode.