2011 Fiscal Year Final Research Report
Structural anal ysis of SWCNTsduring L i i on i nsert i on by synchrotron X-ay diffraction stud
| Project/Area Number |
21550189
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic industrial materials
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| Research Institution | Nagoya Institute of Technology |
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Principal Investigator |
KAWASAKI Shinji 名古屋工業大学, 大学院・工学研究科, 教授 (40241294)
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| Project Period (FY) |
2009 – 2011
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| Keywords | カーボンナノチューブ / リチウムイオン電池 / 放射光 |
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| Research Abstract |
We have developed an electrochemical cell having diamond plate windows for the in-situ synchrotron X-ray diffraction experiment during Li-ion charge-discharge processes. Using the developed cell, we have investigated structural changes of singlewalled carbon nanotubes(SWCNTs) and TiO2 electrodes with Li-ion insertion/extraction. It was found that diffractions of SWCNTs lose their intensities just by immersing SWCNTs in electrolyte. On the other hand, we could observe the change in XRD pattern of Ti02(B) phase with increasing/decreasing Li content. The structures of Ti02(B) phase during Li-ion chargedischarge process were elucidated by Rietveld analyses of the obtained XRD patterns
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