Spatially Offset Raman Spectroscopy for Characterization of a Solid-State System

Solid-state batteries represent a promising technology in the field of high-energy-density and safe storage systems. Improving understanding how defects form within these cells would greatly facilitate future development, which be best served by applying nondestructive analytical tools capable characterization key components their changes during cycling and/or aging. Spatially offset Raman spectroscopy (SORS) represents potentially useful technique, but currently there is lack knowledge regarding its use this field. To fill gap, we present an investigation into simple defocused micro-SORS on systems constructed using typical found solid-state cells. By analyzing constituents assembled system, it was possible to obtain depth profiling spectra show that may obtained from layers are normally obscured, demonstrating technique’s potential for chemical analysis subsurface. In way, results presented validate as technique develop support battery well