DataVXAdvanced Functional MaterialsPaper
journal article·2025-05Open access

Metallosalen Covalent Organic Frameworks with Integrated Organic–Inorganic Active Sites for Enhanced Li Storage

Hao Zhang, Xiandi Ma, Dong Guo, Menggai Jiao, Yiyang Liu, Yongzheng Fang, Manman Wu, Zhen Zhou

Advanced Functional Materials· Volume 35· Issue 20
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Abstract

Abstract Covalent organic frameworks (COFs) hold great promise as cathode materials for lithium‐ion batteries (LIBs), but their limited conductivity has hindered broader application. In this study, a novel metallosalen COF (Cu‐TH‐COF) is introduced, synthesized via a one‐pot method, incorporating redox‐active Cu ions into N2O2 pockets and creating an extended π‐d conjugated structure. This design merges organic and inorganic active sites, enabling efficient multi‐electron transfer and improving the utilization of active sites in LIBs. The π‐d conjugation significantly enhances the electronic conductivity, resulting in improved rate performance. As a result, Cu‐TH‐COF delivers an impressive discharge capacity of 300 mAh g−1 at 50 mA g−1 and retains 174 mAh g−1 at 4000 mA g−1, significantly outperforming its Cu‐free counterpart. This study demonstrates for the first time the potential of metallosalen COFs as high‐performance cathode materials and opens up a new strategy for next‐generation LIBs.
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Research context

Energy storage

OpenAlex topics: Covalent Organic Framework Applications · Advanced Battery Materials and Technologies · Advancements in Battery Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Interdisciplinary Research Center for Sustainable Energy Science and Engineering (IRC4SE2) School of Chemical Engineering Zhengzhou University Zhengzhou 450001 China

School of Materials Science and Engineering Zhengzhou University Zhengzhou 450001 China

Longmen Laboratory Luoyang Henan 471023 China

Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) College of Chemistry Nankai University Tianjin 300071 China

School of Materials Science and Engineering Institute of New Energy Material Chemistry Renewable Energy Conversion and Storage Center Nankai University Tianjin 300350 China

Funding

National Natural Science Foundation of China · China Postdoctoral Science Foundation · Henan Postdoctoral Science Foundation

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