- 著者
- Mahunnop FAKKAO Kazuki CHIBA Yuta KIMURA Takashi NAKAMURA Toyoki OKUMURA Kiyofumi NITTA Yasuko TERADA Yoshiharu UCHIMOTO Koji AMEZAWA
- 出版者
- 公益社団法人 日本セラミックス協会
- 雑誌
- Journal of the Ceramic Society of Japan (ISSN:18820743)
- 巻号頁・発行日
- vol.125, no.4, pp.299-302, 2017-04-01 (Released:2017-04-03)
- 参考文献数
- 9
- 被引用文献数
- 13
In this work, we directly observed the reaction distribution formed in a composite cathode of the all-solid-state lithium-ion battery (ASSLIB) LiCoO2/Li2.2C0.8B0.2O3|Li2.2C0.8B0.2O3|PEO|Li during charging by using the two-dimensional X-ray absorption spectroscopy (2D-XAS) at Co K-edge. The two-dimensional mapping of the state of charge in a composite cathode indicated that the reaction distribution was formed during charging process in the in-plane direction due to the disconnection in electron pathway at cracks. It was experimentally confirmed that the 2D-XAS technique was a useful tool for evaluating the reaction distribution in a composite cathode of an ASSLIB and investigating the influence factors for the formation of the reaction distribution.