• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2016 Fiscal Year Final Research Report

Development of visualization technologies for battery security society

Research Project

  • PDF
Project/Area Number 15K12467
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Social systems engineering/Safety system
Research InstitutionTohoku University

Principal Investigator

Hashida Toshiyuki  東北大学, 工学研究科, 教授 (40180814)

Co-Investigator(Renkei-kenkyūsha) SATO Kazuhisa  東北大学, 大学院工学研究科, 准教授 (50422077)
SUZUKI Ken  東北大学, 大学院工学研究科, 准教授 (40396461)
FUKUI Ken-ichi  大阪大学, 産業科学研究所, 准教授 (80418772)
Project Period (FY) 2015-04-01 – 2017-03-31
Keywordsバッテリー / Liイオン電池 / 固体酸化物燃料電池 / 機械的損傷 / アコースティックエミッション / 自己組織化マップ / 見える化
Outline of Final Research Achievements

This study presents technologies of visualizing the mechanical damage in Li ion secondary cells and solid oxide fuel cells (SOFCs) using acoustic emission (AE) method and laser microscope technique. For Li ion secondary cells, we have developed an AE/laser microscope technique for monitoring the dimensional change in Si-electrodes due to Li ion migration and the associated delamination of the Si-electrode from the substrate. Three stages in the Li ion migration process has been newly discovered in this study. We have also succeeded to detect the mechanical damages such as vertical cracking and delamination induced by the electro-chemical oxidation in the operation of SOFCs, and proposed a self-organization map of the mechanical damages on the basis of the AE monitoring. The above- mentioned technologies are expected to provide a viable foundation for the development of battery security society.

Free Research Field

材料強度学

URL: 

Published: 2018-03-22  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi