Pioneering Operando X-ray Analysis for Electrochemical Energy Conversion Devices
Dr. Yuki Orikasa
Professor
College of Life Sciences, Department of Applied Chemistry, Ritsumeikan University
*The organization and the title are those when awarded
Research summary
Dr. Orikasa developed an operando X-ray analysis* technique that enables real-time observation of internal reactions in lithium-ion batteries, all-solid-state batteries, fuel cells, and water electrolysis cells using high-energy synchrotron X-rays. The technique makes it possible to observe changes in electrodes and electrolytes, reaction non-uniformity, and contact conditions between materials that have previously been difficult to detect. The study also showed that non-uniformity reaction affects battery charging speed and degradation, while contact conditions between materials strongly influence the performance of all-solid-state batteries. In addition, the technique revealed catalyst dissolution and degradation in fuel cells and water electrolysis cells, providing valuable design guidelines for improving the performance and service life of batteries and hydrogen production equipment.
