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21th GREEN Open Seminar

Schedules 2012.09.14 Finished


Prof. Junichi Kawamura, Institute of Multidisciplinary Research for Advanced Materials, TOHOKU University, will give us lecture with the following title; “In situ Measurements of Degradation Process in Lithium Ion Batteries by micro-Raman, NMR/MRI and Acoustic Emission."

Abstract

"In situ Measurements of Degradation Process in Lithium Ion Batteries by
micro-Raman, NMR/MRI and Acoustic Emission."

Degradation mechanism in lithium ion battery (LIB) is a key issue in recent study of LIB for Electric Vehicles (EV), which relates the safety and cost problems.

In this seminar, some new in situ techniques to observe the degradation process in lithium ion batteries will be demonstrated, which we have been developed in NEDO project.
 

  1. in situ micro Raman scattering of positive electrodes (LiCoO2, LiMn2O4) in liquid and solid electrolytes, in which the degradation of cathode materials are observed.
  2. in situ observation of LIB by Nuclear Magnetic Resonance (NMR) and NMR micro-Imaging (μMRI),in which were observed the degradation of electrolyte and positive electrodes.
  3. in situ Acoustic Emission (AE) from LIB materials while charge/discharge process, which is useful to observe the fracture and crack of cathode/anode materials due to phase transitions.


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Summary

Event Title
21th GREEN Open Seminar
Venue
Seminar room, Collaborative Research Bldg.,4F, Namiki Site, NIMS
Schedules Hours
2012.09.14
16:00-17:00

Contact

GREEN
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