Aqueous zinc metal batteries are noted for their cost-effectiveness,safety and environ-mental friendliness.However,the water-induced notorious issues such as continuous electrolyte decomposition and uneven Zn electrochemical deposition remark-ably restrict the development of the long-life zinc metal batteries.In this study,zwitterionic sulfobe-taine is introduced to copolymerize with acrylamide in zinc perchlorate(Zn(ClO4)2)solution.The designed gel framework with hydrophilic and charged groups can firmly anchor water molecules and construct ion migration channels to acceler-ate ion transport.The in situ generated hybrid interface,which is composed of the organic functionalized outer layer and inorganic Cl-containing inner layer,can synergically lower the mass transfer overpotential,reduce water-related side reactions and lead to uniform Zn deposition.Such a novel electrolyte configuration enables Zn//Zn cells with an ultra-long cycling life of over 3000 h and a low polarization potential(～0.03 V)and Zn//Cu cells with high Coulombic efficiency of 99.18％for 1000 cycles.Full cells matched with MnO2 cathodes delivered laudable cycling stability and impressive shelving ability.Besides,the flexible quasi-solid-state batteries which are equipped with the anti-vandalism ability(such as cutting,hammering and soaking)can successfully power the LED simultaneously.Such a safe,processable and durable hydrogel promises significant application potential for long-life flexible electronic devices.

Qiong He;Guozhao Fang;Zhi Chang;Yifang Zhang;Shuang Zhou;Miao Zhou;Simin Chai;Yue Zhong;Guozhong Cao;Shuquan Liang;Anqiang Pan

School of Materials Science and Engineering,Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province,Central South University,Changsha 410083,People's Republic of China;Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City,Fuzhou 350207,People's Republic of China;Department of Materials Science and Engineering,University of Washington,Seattle,WA 98195,USA

纳微快报（英文）

[1]Qiong He;Guozhao Fang;Zhi Chang;Yifang Zhang;Shuang Zhou;Miao Zhou;Simin Chai;Yue Zhong;Guozhong Cao;Shuquan Liang;Anqiang Pan-.Building Ultra-Stable and Low-Polarization Composite Zn Anode Interface via Hydrated Polyzwitterionic Electrolyte Construction)[J].纳微快报（英文）,2022(06):99-115

Polyzwitterionic,sulfobe,taine,copolymerize,synergically,laudable,vandalism,hammering

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