首页|Stabilizing zinc anode using zeolite imidazole framework functionalized separator for durable aqueous zinc-ion batteries

Stabilizing zinc anode using zeolite imidazole framework functionalized separator for durable aqueous zinc-ion batteries

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Aqueous zinc-ion batteries(AZIBs)hold great promise as a viable alternative to lithium-ion batteries owing to their high energy density and environmental friendliness.However,AZIBs are consistently pla-gued by the formation of zinc dendrites and concurrent side reactions,which significantly diminish their overall service life.In this study,the glass fiber separator(GF)is modified using zeolite imidazole salt framework-8(ZIF-8),enabling the development of efficient AZIBs.ZIF-8,which is abundant in nitrogen content,efficiently regulates the desolvation of[Zn(H2O)6]2+to inhibit hydrogen production.Moreover,it possesses abundant nanochannels that facilitate the uniform deposition of Zn2+via a localized action,thereby hindering the formation of dendrites.The insulating properties of ZIF-8 help prevent Zn2+and water from trapping electron reduction at the layer surface,which reduces corrosion of the zinc anode.Consequently,ZIF-8-GF achieves the even transport of Zn2+and regulates the homogeneous deposition along the Zn(002)crystal surface,thus significantly enhancing the electrochemical performance of the AZIBs.In particular,the Zn|Zn symmetric cell with the ZIF-8-GF separator delivers a stable cycle life at 0.5 mA cm-2 of 2300 h.The Zn|ZIF-8-GF|MnO2 cell exhibits reduced voltage polarization while maintain-ing a capacity retention rate(93.4％)after 1200 cycles at 1.2 A g-1 The unique design of the modified dia-phragm provides a new approach to realizing high-performance AZIBs.

Aqueous zinc-ion batteriesSeparators modificationsZIF-8Zn depositionDendrite-free

Weisong Zhang、Xinyan Zhu、Ling Kang、Ziyu Peng、Jing Zhu、Liang Pan、Lei Dai、Shude Liu、Ling Wang、Yongguang Liu、Zhangxing He

展开 >

School of Chemical Engineering,North China University of Science and Technology,Tangshan 063009,Hebei,China

Shanghai Key Laboratory of Multidimensional Information Processing,East China Normal University,Shanghai 201620,China

College of Textiles,Donghua University,Shanghai 201620,China

国家自然科学基金国家自然科学基金Hebei Natural Science Fund for Distinguished Young ScholarYouth Talent Program of Hebei Provincial Education Department河北省自然科学基金Donghua UniversityDonghua UniversityDonghua University

5187209051772097E2019209433BJ2018020E2020209151101-08-024102223D210105101-07-005759

2024

10.1016/j.jechem.2023.10.020

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)：2024.90(3)
  • 59