Organic-inorganic hybrid hydrogel electrolyte for high-performance quasi-solid-state zinc-air batteries  

作　　者：Mingzhu Wu Niu Huang Minghui Lv Fengyi Wang Fang Ma Yihan Deng Panpan Sun Yong Zheng Wei Liu Liqun Ye 

机构地区：[1]College of Materials and Chemical Engineering,Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials,China Three Gorges University,Yichang 443002,China [2]Hubei Three Gorges Laboratory,Yichang 443007,China [3]Engineering Research Center of Eco-environment in Three Gorges Reservoir Region(Ministry of Education),China Three Gorges University,Yichang 443002,China

出　　处：《Frontiers of Chemical Science and Engineering》2025年第3期1-11,共11页化学科学与工程前沿(英文版)

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51872147,22136003);the Project of Hubei Provincial Department of Education(Grant No.D20221202);the 111 Project(Grant No.D20015);the Hubei Provincial Natural Science Foundation of China(Grant Nos.2022CFA065,2022CFB820).

摘　　要：Flexible aqueous zinc-air batteries with high energy density and safety have garnered significant attention.Gel polymer electrolytes have emerged as the preferred option over conventional liquid electrolytes due to their ability to prevent electrolyte leakage.In this study,a composite PANa-PVP-TiO_(2)(NH_(2))hydrogel with high alkaline resistance and ionic conductivity is designed,where the inorganic TiO_(2)(NH_(2))nanoparticles are evenly distributed and integrated into the organic dual network of polyacrylate sodium and polyvinyl pyrrolidone.The organic-inorganic hybrid structure enhances the absorption and retention capabilities for electrolyte solution,leading to impressive ionic conductivity of the gel polymer electrolyte throughout the operation of flexible aqueous zinc-air batteries.Additionally,the incorporation of TiO_(2)(NH_(2))nanoparticles and the dual network construction effectively strengthen the mechanical strength and flexibility of the gel polymer electrolyte,suppressing by-products and zinc dendrite formation.The enhancements lead to the extended cycling longevity of zinc symmetric batteries and excellent power density,as well as the prolonged cycle life of flexible aqueous zinc-air batteries.

关 键 词：gel polymer electrolyte hydrogel electrolyte dual network inorganic nanoparticles zinc-air battery 

分 类 号：TM911.1[电气工程—电力电子与电力传动]