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人工水友的有机和藻抑制的无机混合体固体电解质接口层,用于高度稳定的阳极

Weijie Yang^1,2, Ruohan Yu^1,2, Shaohua Zhu²

¹The Sanya Science and Education Innovation Park of Wuhan University of Technology, Sanya 572000, PR China.

ACS applied materials & interfaces

|February 21, 2024

概括

用Nafion-TiO2涂层保护水性离子电池 (AZIBs),可以防止树脂的生长和腐蚀. 这提高了电池的寿命,提高了未来储能解决方案的安全性和成本效益.

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) 提供了固有的安全性和成本效益,但面临着阳极状物生长和腐蚀的挑战.
这些问题限制了AZIBs的商业可行性和长期业绩.

研究的目的:

开发和评估一种有机-无机涂层 (Nafion-TiO2),用于保护AZIB中的阳极和电解质接口.
通过减轻树突形成和阳极腐蚀来提高AZIB的循环稳定性和安全性.

主要方法:

一种有机-无机涂层,Nafion-TiO2,被应用到阳极上.
纳菲恩通过其疏水性 -CF3 组提供了防腐保护,并通过 -SO3 功能组引导沉积.
二氧化 (TiO2) 颗粒,具有比更高的模量,被用来抑制树突石的形成.

主要成果:

涂上Nafion-TiO2的阳极在对称的ZnZn电池中显著改善了稳定性,在0.5mA cm-2.2时达到1750小时的循环寿命.
使用ZnMnO2配置与受保护阳极的全细胞表现出长周期寿命,在1Ag-1.1时超过1500个周期.
涂层有效地防止了树的生长和阳极腐蚀,提高了电池的整体性能.

结论:

新的Nafion-TiO2涂层为AZIB中的阳极提供了有效的保护策略.
这种方法显著提高了AZIB的周期寿命和稳定性,解决了商业化关键限制.
该方法表明,该方法可用于保护下一代电池中的其他金属阳极,例如和系统.

关键词:

在 Zn 阳极上,树的生长树的生长纳芬-TiO2 的二氧化.固体电解质接口的接口是固体电解质.离子电池是离子电池的一种.

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