通过生物启发的共价有机框架膜对金属阳极进行调节水分子
Sida Zhang1, Jiashu Chen2,3, Weigen Chen1
1State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, National Innovation Center for Industry-Education Integration of Energy Storage, Chongqing University, Chongqing, 400044, China.
Angewandte Chemie (International ed. in English)
|January 19, 2025
概括
生物启发的共价有机框架 (COF) 膜通过调节水和促进离子运输,改善电池性能和安全性,稳定水性离子电池中的阳极.
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
- 储能 储能 储能 储能 储能 储能
背景情况:
- 水性离子电池 (AZIB) 对储能具有前景,但在金属阳极方面面临挑战.
- 水诱导的寄生反应和缓慢的离子迁移动力学阻碍了AZIB的性能和安全性.
研究的目的:
- 开发先进的共价有机框架 (COF) 膜,用于在AZIB中稳定阳极.
- 为了解决水引起的副作用,并改善Zn2+运输动力学.
主要方法:
- 使用生物启发的离子通道制造立体COF膜.
- 在COF结构中纳入性胺-N位点.
- 实验分析和理论模拟以了解接口机制.
主要成果:
- 开发的COF-320N膜有效调节阳极-电解质接口上的水.
- 膜作为离子,增强Zn2+运输和解溶动力学.
- 获得了改善的Zn2+转移数 (0.61) 和抑制的进化.
结论:
- 生物启发的COF膜为AZIB中阳极稳定提供了一种新的策略.
- 这种方法提高了电化学性能,并为先进的储能设备开辟了新的途径.
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