原位表征技术在固态电池界面研究中的应用

Application of In-Situ Characteristic Technology in Studying Interfaces of Solid-State Battery

原位表征技术已被广泛应用在固态电池(SSB)的界面研究中,为揭示SSB充放电过程中界面结构演化以及工作机制提供了重要依据。与非原位表征技术相比,原位表征技术不需要对SSB进行拆卸,避免了外界环境对固态电解质(SE)和电极材料造成污染,提高测试的准确性。总结了电极/SE界面研究中经常使用的原位表征技术,包括原位X射线衍射(XRD)、原位拉曼光谱(RS)、原位扫描电镜(SEM)、原位透射电镜(TEM)以及原位X射线光电子能谱(XPS),并结合相关应用案例进行分析。

With the in-depth study of solid-state batteries(SSB),various in-situ characteristic technologies have been widely used to study SSB,providing an important basis for revealing the working mechanism of SSB during charging and discharging process.Compared with ex-situ characteristic technology,the in-situ characteristic technology needn’t to disassemble the SSB,thereby protecting the solid electrolytes(SE)and electrode materials from pollution and improving the accuracy of the test.In this article,the in-situ characteristic technology applied in the electrode/solid electrolyte interface research was summarized,including in-situ XRD,in-situ RS,in-situ SEM,in-situ TEM,and in-situ XPS.The relevant application examples were cited and analyzed.