2017 Fiscal Year Final Research Report
Spatially resolved analysis of electrode reactions and application to battery design
Project/Area Number |
15K17924
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Device related chemistry
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Research Institution | Ritsumeikan University |
Principal Investigator |
Katayama Misaki 立命館大学, 生命科学部, 任期制講師 (90469198)
|
Project Period (FY) |
2015-04-01 – 2018-03-31
|
Keywords | イメージングXAFS / リチウムイオン電池 / 反応分布 / 均一化 |
Outline of Final Research Achievements |
Inhomogeneous reaction in electrodes of secondary batteries causes serious problems. In this study, origins and mechanisms of the inhomogeneous reactions were investigated by using a XAFS imaging technique. Chemical state maps obtained for various positive electrodes of lithium ion batteries showed the origins of the inhomogeneous reaction depends on an active material of the cathode. It was revealed that the inhomogeneous reaction due to the electron conductivity can be avoided by controlling the ratio of a conductive material in the electrode and the conductivity between the current collector and the electrode materials.
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Free Research Field |
放射光XAFS、電気化学、無機化学
|