The Polymer Society of Korea

Abstract

Synchrotron X-ray techniques are widely used to investigate structural defects in electrode and solid electrolyte materials for rechargeable batteries due to their high flux and resolution. When combined with neutron-based methods, complementary information on light elements such as Li, Na, H, and O can be obtained, enabling more reliable defect analysis. Integration of neutron diffraction with X-ray absorption spectroscopy (XAS) further allows quantitative evaluation of neighboring transition-metal elements including Mn, Fe, Co, and Ni, as well as characterization of bulk and surface structures.
In this presentation, we report recent studies using combined synchrotron X-ray and neutron techniques to characterize structural defects in cathode and solid electrolyte materials. Case studies on layered cathodes and garnet-type solid electrolytes demonstrate how multimodal analysis provides insight into defect behavior and supports the development of high-performance battery materials.