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)
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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Keywords | イメージングXAFS / リチウムイオン電池 / 反応分布 / 均一化 / 導電助剤 / リチウムイオン二次電池 / 電子伝導 |
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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Report
(4 results)
Research Products
(21 results)
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[Journal Article] Ionic Conduction in Lithium Ion Battery Composite Electrode Governs Cross-sectional Reaction Distribution2016
Author(s)
Y. Orikasa, Y. Gogyo, H. Yamashige, M. Katayama, K.Z. Chen, T. Mori, K. Yamamoto, T. Masese, Y. Inada, T. Ohta, Z. Siroma, S. Kato, H. Kinoshita, H. Arai, Z. Ogumi, Y. Uchimoto
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Journal Title
Sci. Rep.
Volume: 6
Issue: 1
Pages: 26382-26382
DOI
NAID
Related Report
Peer Reviewed / Open Access
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[Presentation] Determining Factors for Charge-Discharge Performances of Composite Electrode in Lithium-Ion Battery2016
Author(s)
Y. Orikasa, H. Yamashige, H. Tanida, M. Katayama, K. Kitada, K. Z. Chen, Y. Inada, T. Ohta, Z. Siroma, S. Kato, H. Kinoshita, H. Arai, Z. Ogumi, and Y. Uchimoto
Organizer
PRiME 2016/230th ECS Meeting
Place of Presentation
Honolulu Hawaii USA
Year and Date
2016-10-05
Related Report
Int'l Joint Research
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