聚乙烯葡萄糖保护微墙阵列为稳定的阳极
Zehao Song1, Chengwu Yang1,2, Napat Kiatwisarnkij1
1Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok 10330, Thailand.
ACS applied materials & interfaces
|November 13, 2024
概括
工程3D微墙阵列与聚乙烯糖醇涂层稳定水性离子电池,通过确保均的沉积和防止树状岩的形成,延长电池寿命.
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
- 储能 储能 储能 储能 储能 储能
背景情况:
- 水性离子电池 (AZIB) 为离子电池提供了环保和安全的替代品.
- 在AZIB商业化方面的挑战包括树脂的生长和副作用.
研究的目的:
- 为AZIBs开发一个稳定的3D阳极.
- 为了提高沉积的均性和电池周期寿命.
主要方法:
- 通过打印来制造有序的微墙阵列.
- 用聚乙烯糖醇 (PEG) 涂覆微型壁纸.
- 3D混合阳极的电化学表征.
主要成果:
- 3D混合阳极促进了均的沉积,并抑制了树突的形成.
- PEG涂层使表面缺陷被动化,并增强了 (002) 平面沉积.
- 电极在5A/g时达到120mA h/g容量,在800个循环中保持>80%.
结论:
- 3D微结构对于调节电场和提高 Zn 阳极稳定性至关重要.
- 开发的3D混合阳极为长期稳定的AZIB提供了一个有希望的解决方案.
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