Stabilizing Zn Metal Anode via an Innovative Cu-MOF/Carbon Cloth Ion-Buffering Layer

IF 8.2 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces Pub Date : 2025-07-20 DOI:10.1021/acsami.5c07848

Yuhan Fu, Yali Li*, Yang Chen, Jidong Hu, Hai Liu, Jiawei Zhao, Shoukun Zhao, Hongyun Ma, Yujun Fu, Deyan He and Junshuai Li*,

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引用次数: 0

Abstract

The performance of aqueous zinc-ion batteries is frequently hindered by anode-related issues such as uncontrolled dendrite formation and side reactions. Metal–organic frameworks (MOFs), characterized by their highly ordered porous structures, remarkably large specific surface areas, and tunable active sites, offer a promising solution by regulating Zn²⁺ flux and promoting uniform Zn deposition. In this study, a Cu-MOF was synthesized in situ on carbon cloth (CM-C) and functioned as an ion-buffering layer within the battery. This innovative configuration significantly mitigates side reactions, achieving an extended cycle life of nearly 800 h at a high current density of 10.0 mA cm^–2 (areal capacity: 10.0 mA h cm^–2) and nearly 1200 h at 5.0 mA cm^–2. After 2000 cycles at 5.0 mA cm^–2, the battery demonstrated an average Coulombic efficiency of 99.3%. Additionally, the full battery containing CM-C demonstrated enhanced capacity and stability. This simple and novel structure provides new possibilities for enhancing the cycling stability of zinc-ion batteries.

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通过创新的Cu-MOF/碳布离子缓冲层稳定锌金属阳极。

水性锌离子电池的性能经常受到阳极相关问题的阻碍，如不受控制的枝晶形成和副反应。金属有机骨架（mof）具有高度有序的多孔结构、非常大的比表面积和可调的活性位点，通过调节Zn2+通量和促进均匀锌沉积提供了一个有前途的解决方案。在本研究中，在碳布（CM-C）上原位合成了Cu-MOF，并在电池内作为离子缓冲层。这种创新的结构显著减轻了副反应，在10.0 mA cm-2的高电流密度（面积容量：10.0 mA h cm-2）下实现了近800小时的循环寿命，在5.0 mA cm-2下实现了近1200小时的循环寿命。在5.0 mA cm-2下循环2000次后，电池的平均库仑效率达到99.3%。此外，含有CM-C的全电池显示出更高的容量和稳定性。这种简单新颖的结构为提高锌离子电池的循环稳定性提供了新的可能性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Materials & Interfaces 工程技术-材料科学：综合

CiteScore

16.00

自引率

6.30%

发文量

4978

审稿时长

1.8 months

期刊介绍： ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.