The electrochemical degradation of Li-ion batteries occurs at different spatial and temporal scales. This work demonstrates how operando synchrotron X-ray diffraction can be used to study degradation in Li-ion battery materials by mapping component-specific crystallographic structure evolution across a single-layer pouch full cell in real-time, with 100 micrometre spatial resolution and 10 millisecond data collection time per pixel. It enables the quantification of structural degradation processes in Li-ion battery cells from the atomic to macroscopic scale.
Menon et al. (Tue,) studied this question.