A widely used nonionic surfactant with desired functional groups as aqueous electrolyte additives for stabilizing Zn anode

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外文摘要：Aqueous Zn-ion batteries(AZIBs)have emerged as potential candidates for Li-ion batteries due to their intrinsic safety and high capacity.However,metallic Zn anodes encounter dendrite growth and water-induced corrosion,rendering poor stability and severe irreversibility at the electrode/electrolyte interface during cycling.To stabilize the Zn anode,we report a low-cost and effective nonionic surfactant,Tween-20 polymer,as an electrolyte additive for AZIBs.For Tween-20,sequential oxyethylene groups tended to be preferentially adsorbed on the Zn electrode to form a shielding layer for regulating uniform Zn nucleation.Moreover,the hydrophobic hendecyl chains prevented H2O-induced corrosion on the Zn anode surface.Benefiting from the desired functional groups,when only trace amounts of Tween-20(0.050 g·L-1)were used,the Zn anode displayed good cycling stability over 2170 h at 10 mA·cm-2 and a high average Coulombic efficiency of 98.94％over 1000 cycles.The Tween-20 polymer can also be effectively employed in MnO2/Zn full batteries.Con-sidering their toxicity,price and amount of usage,these surfactant additives provide a promising strategy for real-izing the stability and reversibility of high-performance Zn anodes.

外文关键词：

Zn anodeDendrite growthTween-20 polymerSurfactant additiveAqueous electrolyte

作者：

Yue-Xian Song、Xiao-Feng Wang、Cai-Bin Liu、Kai-Xuan Guo、Xu-Huan Guo、Xiao-Bin Zhong、Yao-Hui Zhang、Kai Wang、Hui-Juan Guo、Li-Xin Zhang、Jun-Fei Liang

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作者单位：

School of Energy and Power Engineering,North University of China,Taiyuan 030051,China

Key Laboratory of Green Chemical Process of Ministry of Education,Hubei Key Laboratory of Novel Chemical Reactor and Green Chemical Technology,School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Wuhan 430073,China

Shanxi Provincial Key Laboratory for High Performance Battery Materials and Devices,Taiyuan 030051,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Shanxi Province of ChinaNatural Science Foundation of Shanxi Province of ChinaOpening Foundation of Shanxi Provincial Key Laboratory for High Performance Battery Materials and DevicesGraduate Student Innovation Program of North University of ChinaNatural Science Foundation of Hubei Province of China

项目编号：

22102157U191020820210302124097202103021246632022HPBMD02002202218712022CFB577

出版年：

2024

DOI：

10.1007/s12598-024-02754-1

稀有金属(英文版)

中国有色金属学会

稀有金属(英文版)

CSTPCDEI

影响因子：0.801

ISSN：1001-0521

年,卷(期)：2024.43(8)