MOF 玻璃封闭黑通过 Co─P 定先进的离子电池阳极
Yijie Wei1,2, Zhengjie Chen2, Xin Guo2
1Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau SAR, 999078, P. R. China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|August 20, 2025
概括
研究人员使用ZIF玻璃矩阵中的黑开发了离子电池的新复合阳极. 这种稳定材料具有高容量和长周期寿命, 推动下一代储能.
科学领域:
- 材料科学
- 电化学
- 纳米技术
背景情况:
- 离子电池中的石墨阳极接近理论容量极限.
- 合金类型的阳极如黑 (BP) 具有高容量,但与体积扩张和不稳定性作斗争.
研究的目的:
- 为下一代LIB开发稳定且高容量的阳极材料.
- 采用热立体乳酸框架 (ZIF) 玻璃矩阵来稳定黑.
主要方法:
- 使用现场玻璃化策略来制造复合阳极.
- 黑,黑和单壁碳纳米管被整合到一个ZIF玻璃矩阵中.
- 复合材料的结构和性能使用包括现场TEM在内的技术进行了表征.
主要成果:
- 复合阳极具有稳定的结构,BP体积扩张限制在10%以下.
- 一个3D网络促进了快速的电子和Li+运输.
- 该材料实现了652.3mAhg-1的高可逆容量,在1000个循环中保持98%的1Ag-1.
结论:
- 金属有机框架 (MOF) 玻璃作为稳定合金类阳极材料的坚固基质.
- 开发的复合阳极显示出下一代LIB的巨大潜力.
- 这种方法为克服高容量阳极开发的挑战提供了有希望的策略.
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