A Sodium-Ion Full-Cell Battery with Two Individual Covalent Organic Frameworks (COFs) as the Cathode and Anode
We present an organic sodium-ion full-cell battery with two redox-active covalent organic frameworks (COFs, CityU-36 and CityU-44) serving as the anode and cathode, respectively. The cathode COF (CityU-44) incorporates a nitro group, delivering a high output voltage, and the anode COF (CityU-36) is functionalized with imidazole units and carbonyl units to maximize the energy density. The integration of the two COF electrodes in a battery cell delivers a reversible capacity of 187 mAh g<sup>-1</sup> with 83% retention of the initial capacity after 800 cycles. This work demonstrates that an all-COF-based sodium-ion battery (SIB) with a rational design strategy is a promising candidate for sustainable energy storage.
Authors
- Fangyuan Kang (ORCID: https://orcid.org/0000-0002-4279-2929)
- Chun‐Sing Lee (ORCID: https://orcid.org/0000-0001-6557-453X)
- Jinglun Yang (ORCID: https://orcid.org/0000-0002-3349-2764)
- Yuchan Zhang
- Yongbing Tang (ORCID: https://orcid.org/0000-0003-2705-4618)
- Lei Yan (ORCID: https://orcid.org/0000-0003-0547-8997)
- Kyungsoo Shin
- Qichun Zhang (ORCID: https://orcid.org/0000-0003-1854-8659)
Institutions
- Ningbo University (CN)
- City University of Hong Kong (HK)
- Chinese Academy of Sciences (CN)
- Advanced Energy (United States) (US)
- City University of Hong Kong, Shenzhen Research Institute (CN)
- Shenzhen Institutes of Advanced Technology (CN)
Publication Details
- Journal
- ACS Applied Materials & Interfaces
- Published
- 2025-12-18
- DOI
- https://doi.org/10.1021/acsami.5c17737
- Citations
- 1
- Primary Topic
- Covalent Organic Framework Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.52