Elucidation of the position and movement of conduction atoms of battery materials by neutron scattering
| Project/Area Number |
24360263
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Physical properties of metals
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
ONODERA Yohei 京都大学, 原子炉実験所, 助教 (20531031)
MORI Kazuhiro 京都大学, 原子炉実験所, 准教授 (40362412)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2014: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2013: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2012: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
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| Keywords | イオン伝導物質 / 固体電解質 / 中性子散乱 / X線回折 / イオン伝導度 / 全固体電池 / 原子構造 / イオン伝導経路 / イオン伝導体 / Ｘ線回折 / イオン伝導ガラス / 構造解析 / 蓄電池材料 / 伝導特性 / 原子分布 / イオン伝導 / モデリング |
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| Outline of Final Research Achievements |
In this study, we performed synchrotron X-ray diffraction (SXRD) and time-of-flight neutron diffraction (TOF-ND) analyses on (Li2S)x(P2S5)100-x glasses (x = 50, 60, and 70), Li7P3S11 glass-ceramic and Li3xLa2/3-xTiO3 crystal and succeeded in clearly visualizing three-dimensional structure and the predicted conduction pathways of the lithium ions at RT by combining reverse Monte Carlo (RMC) modeling and the Bond Valence Sum (BVS) method. The conduction pathways of the lithium ions could be briefly classified into two types: lithium ‘stable’ and ‘metastable’ regions. It was found that a significant relationship exists between the topology of the conduction pathways of the lithium ions and the activation energy of the electrical conduction.
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Report
(4 results)
Research Products
(53 results)
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[Journal Article] Development of SPICA, new dedicated neutron powder diffractometer for battery studies2014
Author(s)
M. Yonemura, K. Mori, T. Kamiyama, T. Fukunaga, S. Torii, M. Nagao, Y. Ishikawa, Y. Onodera, D. S. Adipranoto, H. Arai, Y. Uchimoto, and Z. Ogumi
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Journal Title
J. Phys.: Conf. Ser.
Volume: 502
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Presentation] Battery analysis using neutron- and synchrotron-beam aided analysis at RISING project2013
Author(s)
H. Arai, M. Yonemura, K. Mori, T. Kamiyama, T. Fukunaga, Y. Onodera, A. Mitsui, T. Naka, M. Morishima, H. Sugaya, H. Komatsu, Y. Orikasa, Y. Ishikawa, D. Sulistyanintyas, Y. Uchimoto, Z. Ogumi
Organizer
2013 MRS Fall Meeting
Place of Presentation
Massachusetts, USA
Related Report
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[Presentation] Development of SPICA, new dedicated powder diffractometer for battery studies2013
Author(s)
M. Yonemura, K. Mori, T. Kamiyama, T. Fukunaga, S. Torii, M. Nagao, Y. Ishikawa, Y. Onodera, D. Sulistyanintyas
Organizer
Light and Particle Beams in Materials Science 2013 (LPBMS 2013)
Place of Presentation
Tsukuba, Japan
Related Report
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