Unraveling the Mechanism of Covalent Organic Frameworks-Based Functional Separators in High-Energy Batteries.

IF 13 2区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Small Pub Date : 2024-08-13 DOI:10.1002/smll.202405396

Wenjie Li, Zhendong Hao, Shihai Cao, Silin Chen, Xue Wang, Huimin Yin, Xuewei Tao, Yuming Dai, Yuan Cong, Jia Ju

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引用次数: 0

Abstract

Covalent organic frameworks (COFs) are promising porous materials due to their high specific surface area, adjustable structure, highly ordered nanochannels, and abundant functional groups, which brings about wide applications in the field of gas adsorption, hydrogen storage, optics, and so forth. In recent years, COFs have attracted considerable attention in electrochemical energy storage and conversion. Specifically, COF-based functional separators are ideal candidates for addressing the ionic transport-related issues in high-energy batteries, such as dendritic formation and shuttle effect. Therefore, it is necessary to make a comprehensive understanding of the mechanism of COFs in functional separators. In this review, the advantages, applications as well as synthesis of COFs are firstly presented. Then, the mechanism of COFs in functional separators for high-energy batteries is summarized in detail, including pore channels regulating ionic transport, functional groups regulating ionic transport, adsorption effect, and catalytic effect. Finally, the application prospect of COFs-based separators in high-energy batteries is proposed. This review may provide new insights into the design of functional separators for advanced electrochemical energy storage and conversion systems.

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揭示高能电池中基于共价有机框架的功能分离器的机理。

共价有机框架（COFs）因其高比表面积、可调结构、高度有序的纳米通道和丰富的官能团而成为一种前景广阔的多孔材料，在气体吸附、储氢、光学等领域有着广泛的应用。近年来，COF 在电化学储能和能量转换领域引起了广泛关注。具体来说，基于 COF 的功能性隔膜是解决高能电池中离子传输相关问题（如树枝状形成和穿梭效应）的理想候选材料。因此，有必要全面了解 COF 在功能性隔膜中的作用机理。本综述首先介绍了 COFs 的优点、应用和合成。然后，详细总结了 COFs 在高能电池功能性隔膜中的作用机理，包括调节离子传输的孔道、调节离子传输的官能团、吸附效应和催化作用。最后，提出了基于 COFs 的隔膜在高能电池中的应用前景。本综述可为先进电化学储能和转换系统的功能性隔膜设计提供新的见解。

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

Small 工程技术-材料科学：综合

CiteScore

17.70

自引率

3.80%

发文量

1830

审稿时长

2.1 months

期刊介绍： Small serves as an exceptional platform for both experimental and theoretical studies in fundamental and applied interdisciplinary research at the nano- and microscale. The journal offers a compelling mix of peer-reviewed Research Articles, Reviews, Perspectives, and Comments. With a remarkable 2022 Journal Impact Factor of 13.3 (Journal Citation Reports from Clarivate Analytics, 2023), Small remains among the top multidisciplinary journals, covering a wide range of topics at the interface of materials science, chemistry, physics, engineering, medicine, and biology. Small's readership includes biochemists, biologists, biomedical scientists, chemists, engineers, information technologists, materials scientists, physicists, and theoreticians alike.