Zincophilic Nanowire Array With Hydrophobic Iodine Elimination Layer for Ultrastable Zinc‐Iodine Battery
Abstract
ABSTRACT Among the ultrafast rechargeable batteries, aqueous zinc‐iodine (Zn‐I 2 ) batteries receive renewed interest for their cost‐effectiveness, environmental friendliness and efficient double electron transfer mechanism. However, the shuttle corrosion of polyiodide and the dendrite problem of zinc metal anodes lead to rapid battery failure. Here, we first introduced a zincophilic nanowire array with hydrophobic iodine elimination effect to stabilize the zinc anode for a stable dendrite‐free and corrosion‐free zinc‐iodine battery. The in situ constructed composite nanowire array provides an ordered and continuous zincophilic channel to induce stable non dendritic zinc deposition and possesses a hydrophobic iodine elimination effect, preventing simultaneous electrolyte and polyiodide corrosion. As a result, the zinc‐iodine full cell has achieved the ultralong 350000 cycles at a high specific current of 50C, with a minimal capacity attenuation of 0.00011% per cycle. Our work offers a reference strategy for achieving ultrafast‐charging Zn‐I 2 batteries with maximum chemical stability.
Article Details
Authors (12)
Changning Ma
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology Wuhan 430070 China
Chenxu Dong
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology Wuhan 430070 China
Penglin Zhao
State Key Laboratory of Advanced Technology For Materials Synthesis and Processing Wuhan University of Technology Wuhan P. R. China
Kao Wang
State Key Laboratory of Advanced Technology For Materials Synthesis and Processing Wuhan University of Technology Wuhan P. R. China
Cheng Zhou
Department of Anesthesiology, West China Hospital, Sichuan University
Lihua Pei
College of Chemistry Huazhong Agricultural University Wuhan P. R. China
Jiapei Gu
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology Wuhan 430070 China
Juan Ji
Minjian Gong
State Key Laboratory of Advanced Technology For Materials Synthesis and Processing Wuhan University of Technology Wuhan P. R. China
Yanzhu Luo
College of Chemistry Huazhong Agricultural University Wuhan P. R. China
Xu Xu
Institute for Carbon Neutralization Technology, College of Chemistry and Materials Engineering
Liqiang Mai