金属有机框架玻璃介层的适应性结构使水性离子电池的性能更高
Zhenjing Jiang1, Yanfei Zhang2, Dorthe Bomholdt Ravnsbæk3
1SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, China.
Advanced materials (Deerfield Beach, Fla.)
|February 19, 2025
概括
像ZIF-62这样的金属有机框架 (MOF) 玻璃通过稳定阳极来改善水性离子电池的寿命. 这种MOF玻璃中间层增强了循环稳定性和离子扩散,以提高电池性能.
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:
- 水性离子电池提供了一种安全且具有成本效益的储能解决方案.
- 金属有机框架 (MOF) 可以通过帮助离子运输来提高离子电池的性能.
- 水晶MOF在电池中的结构稳定性和运行寿命方面面临挑战.
研究的目的:
- 开发水性离子电池中阳极的稳定高性能中间层.
- 研究金属有机框架 (MOF) 玻璃作为保护性中间层的潜力.
- 提高阳极的循环寿命和循环能力.
主要方法:
- 制造ZIF-62金属有机框架 (MOF) 的玻璃中间层.
- 将ZIF-62玻璃中间层集成到一个阳极上.
- 测试ZnDigitalMnO2全电池和ZnDigital囊电池中修饰的阳极的测试.
- 分析结构稳定性和离子扩散动力学.
主要成果:
- ZIF-62玻璃中间层显著改善了阳极的循环寿命.
- 已在Zn particleMnO2全电池 (600个周期,0.5A g-1,没有衰变) 和Zn particle iodine袋式电池中表现出卓越的循环性.
- 玻璃结构的灵活性和减少四面体断开有助于增强稳定性.
- 促进了更快的Zn2+离子扩散,并改善了界面动力学.
结论:
- 金属有机框架 (MOF) 玻璃介层,特别是ZIF-62,为稳定阳极提供了一个有希望的策略.
- MOF玻璃的独特结构特性克服了水性离子电池中晶体MOF的局限性.
- 这种方法使得基储能器件的循环稳定性优越,运行寿命延长.
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