Alsaç Elif Pınar, Nelson Douglas Lars, Yoon Sun Geun, Cavallaro Kelsey Anne, Wang Congcheng, Sandoval Stephanie Elizabeth, Eze Udochukwu D, Jeong Won Joon, McDowell Matthew T
G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.
Chem Rev. 2025 Feb 26;125(4):2009-2119. doi: 10.1021/acs.chemrev.4c00584. Epub 2025 Feb 4.
Solid-state batteries (SSBs) could offer improved energy density and safety, but the evolution and degradation of electrode materials and interfaces within SSBs are distinct from conventional batteries with liquid electrolytes and represent a barrier to performance improvement. Over the past decade, a variety of imaging, scattering, and spectroscopic characterization methods has been developed or used for characterizing the unique aspects of materials in SSBs. These characterization efforts have yielded new understanding of the behavior of lithium metal anodes, alloy anodes, composite cathodes, and the interfaces of these various electrode materials with solid-state electrolytes (SSEs). This review provides a comprehensive overview of the characterization methods and strategies applied to SSBs, and it presents the mechanistic understanding of SSB materials and interfaces that has been derived from these methods. This knowledge has been critical for advancing SSB technology and will continue to guide the engineering of materials and interfaces toward practical performance.
固态电池（SSB）可以提供更高的能量密度和安全性，但其电极材料及内部界面的演变与退化，与具有液体电解质的传统电池不同，这也是性能提升的一个障碍。在过去十年中，已开发出多种成像、散射和光谱表征方法，或用于表征固态电池中材料的独特方面。这些表征工作使人们对锂金属负极、合金负极、复合正极以及这些不同电极材料与固态电解质（SSE）之间的界面行为有了新的认识。本综述全面概述了应用于固态电池的表征方法和策略，并阐述了通过这些方法得出的对固态电池材料及界面的机理理解。这些知识对于推动固态电池技术发展至关重要，并将继续指导材料和界面工程以实现实际性能。
