The 146th AMCP Open Seminar

Thursday, August 1, 2019, 15:00-16:00

National Institute for Materials Science (NIMS)
Sengen Main Bldg. 8F Middle Seminar Room → access

Pre-registration is not required.
For inquiries, please contact the Administrative Office.
This lecture is open to the public. Your participation is strongly encouraged.

Hideki Masuda, Assistant professor , University of Tsukuba

Visualization of different Li compositions using in situ ToF-SIMS with nonnegative matrix factorization

We developed in situ cross-sectional measurement using time-of-flight secondary ion mass spectrometry (ToF-SIMS)[1]. This method enables measuring the lithium ion distribution inside the all-solid-state lithium ion battery. In this talk, we introduce non-negative matrix factorization [2] on spectrum imaging data containing Li acquired in accordance with battery operation, and introduce an approach to visualize the distribution of different Li compositions [3].

[1] H.Masuda, et al., J. Powersources, 400(2018)527.
[2] M. Shiga, et al., Ultramicroscopy,170(2016)43.
[3] H.Masuda, et al., submitted.