首页|Regulating interfacial behavior of zinc metal anode via metal-organic framework functionalized separator

Regulating interfacial behavior of zinc metal anode via metal-organic framework functionalized separator

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Aqueous zinc ion batteries(AZIBs)are one of the promising energy storage devices.However,uncon-trolled dendrite and side reactions have seriously hindered its further application.In this study,the metal-organic framework(MOF)functionalized glass fiber separator(GF-PFC-31)was used to regulate interfacial behavior of zinc metal anode,enabling the development of high-performance AZIBs.In PFC-31,there are π-π interactions between two adjacent benzene rings with a spacing of 3.199 Å.This spacing can block the passage of[Zn(H20)6]2+(8.6 Å in diameter)through the GF-PFC-31 separator to a certain extent,which promotes the deposition process of Zn ions.In addition,the sulfonic acid group(-SO3H)contained in GF-PFC-31 can form a hydrogen bonding network with H2O,which can provide a desolvation effect and reduce the side reaction.Consequently,GF-PFC-31 separator achieves uniform deposition of Zn ions.The Zn||GF-PFC-31||Zn symmetric cell exhibits stable cycle life(3000 h at 1.2 mA cm-2,2000 h at 0.3 mA cm-2,and 2000 h at 5.0 mA cm-2),and Zn||GF-PFC-31||MnO2 full cell with GF-PFC-31 separator can cycle for 1000 cycles at 1.2 A g-1 with capacity retention rate of 82.5％.This work provides a promis-ing method to achieve high-performance AZIBs.

Aqueous zinc ion batteriesInterfacial behaviorMetal-organic frameworkSulfonic acid groupSeparator

Ruotong Li、Liang Pan、Ziyu Peng、Ningning Zhao、Zekun Zhang、Jing Zhu、Lei Dai、Ling Wang、Zhangxing He

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School of Chemical Engineering North China University of Science and Technology,Tangshan 063210,Hebei,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaYouth Talent Program of Hebei Provincial Education DepartmentNatural Science Foundation of Hebei ProvinceNatural Science Foundation of Hebei ProvinceNatural Science Foundation of Hebei ProvinceScience and Technology Project of Hebei Education Department

8220460422304055BJ2018020E2020209151E2022209158H2022209012JZX2024026

2024

10.1016/j.jechem.2024.02.011

能源化学
中国科学院大连化学物理研究所 中国科学院成都有机化学研究所

能源化学

CSTPCDEI
影响因子：0.654
ISSN：2095-4956
年,卷(期)：2024.93(6)
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