その場軟X線吸収分光測定深さ分解手法による全固体Liイオン二次電池の電極反応機構解析

王芳

Depth-Resolved in situ Soft X-ray Absorption Spectroscopic Technique for Reaction Mechanism Study of All Solid State Lithium Ion Battery

       In order to understand reaction mechanism in all solid state lithium ion battery, it is important to clarify chemical and physical states of the electrode and the electrolyte materials under operating conditions. In particular, elucidating depth profile of chemical and physical properties in the electrode and the electrolyte including their interface is expected to give us a new perspective from which to understand the electrode reactions. For this purpose, we have developed a novel in situ analytical technique with a high depth-resolution in the order of nm by applying the grazing-exit in situ soft X-ray absorption spectroscopy (XAS).