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"Depo-all-around":一种基于FIB的新TEM样本准备技术,用于固态电池复合材料和其他松散结合样本

Thomas Demuth¹, Till Fuchs², Andreas Beyer¹

¹Materials Science Center and Faculty of Physics, Philipps University Marburg, Hans-Meerweinstraße 6, Marburg 35043, Germany.

Ultramicroscopy

|December 7, 2023

概括

我们开发了一种新的方法来准备易碎的复合样本用于电子显微镜. 该技术使用保护框架,防止样品在聚焦离子束准备过程中断裂,以便更好地进行接口分析.

科学领域:

材料科学材料科学材料科学
电池技术电池技术
电子显微镜电子显微镜

背景情况:

接口现象对于固态电池性能至关重要.
传输电子显微镜 (TEM) 提供了对这些接口的原子级洞察力.
传统的聚焦离子束 (FIB) 样本准备对于松散结合的复合材料是很困难的.

研究的目的:

介绍一个新的FIB样品制备方法,用于松散结合复合材料.
为了实现固态电池界面的高分辨率 (S) TEM成像.
为了克服在FIB削过程中与样品完整性相关的挑战.

主要方法:

使用聚焦离子束 (FIB) 系统与气体注射系统.
开发了一种新的样品制备技术,涉及沉积层来创建一个保护框架.
应用该方法来准备用于 (S) TEM分析的复合样本.

主要成果:

成功地准备了脆弱的复合样品,而没有分解.
证明了获得接口高分辨率 (S) TEM图像的能力.
验证了保护框架在保持样品完整性的有效性.

结论:

拟议的FIB制备技术有效地保存了松散结合的复合样品.
这种方法增强了对固态电池和其他复合材料接口的研究.
该技术为显微镜中具有挑战性的样本准备提供了强大的解决方案.

关键词:

FIB的准备工作接口接口接口接口 LLZOZO LLZO 在线观看在NCM中,NCM是指NCM.固态电池复合材料固态电池复合材料这就是TEMEM.

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