一个离子全细胞电池,具有两个单独的共价有机框架 (COF) 作为阴极和阳极
Jinglun Yang1, Yuchan Zhang1, Kyungsoo Shin1,2
1Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR 999077, P.R. China.
ACS applied materials & interfaces
|December 18, 2025
概括
研究人员开发了一种全共价有机框架 (COF) 电池,用于可持续储能. 这种有机离子电池 (SIB) 使用两个COF作为电极,实现高能量密度和长周期寿命.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 可持续能源 可持续能源
背景情况:
- 对于可持续的储能解决方案的需求正在增加.
- 有机离子电池 (SIB) 为传统电池提供了一个有希望的替代品.
- 聚合有机框架 (COF) 正因其可调节的结构和特性而成为先进的电极材料.
研究的目的:
- 开发一种高性能,可持续的有机离子全电池.
- 为了利用两个不同的氧化还原活性COF作为阳极和阴极材料.
- 为了研究完全基于COF的SIB的电化学性能和稳定性.
主要方法:
- 两个COF的合成和表征:CityU-36 (阳极) 和CityU-44 (阴极).
- 使用这些COF作为电极制造一个全细胞离子电池.
- 电化学测试,包括循环性能和容量保留分析.
主要成果:
- 阴极COF (CityU-44) 具有一个基组,有助于高输出电压.
- 阳极COF (CityU-36) 是功能化与伊米达和碳单位,以提高能量密度.
- 全COF电池的可逆容量为187mAhg-1.
- 电池在800个循环后保持了83%的初始容量.
结论:
- 一个完全基于COF的离子电池 (SIB) 成功开发.
- 对COF电极材料的合理设计对于优化SIB性能至关重要.
- 这种基于COF的SIB为可持续能源存储应用提供了有前途的途径.
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