2012 Fiscal Year Final Research Report
Study of salt-nanoprecipitation in solid-polymer electrolyte by means of tracer diffusion and nanospace analysis
| Project/Area Number |
23740234
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics I
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| Research Institution | Tokyo Gakugei University |
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Principal Investigator |
SATO Kiminori 東京学芸大学, 教育学部, 准教授 (00401448)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 高分子電解質 / ナノ空間 / 陽電子 / ポジトロニウム |
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| Research Abstract |
The phenomenon of salt-nanoprecipitation was studied for solid-polymer electrolyte by impedance measurements, diffusion experiments, positronium (Ps) lifetime spectroscopy, and positron-age-momentum-correlation (AMOC) spectroscopy. The impedance measurements, diffusion experiments, and Ps lifetime spectroscopy significantly detected the onset of salt-nanoprecipitation. AMOC spectroscopy revealed that the elemental environment around the open nanospaces began to vary earlier than the onset of salt-nanoprecipitation detected by the impedance measurements, diffusion experiments, and Ps lifetime spectroscopy. This implies the pre-transition phenomenon of the salt-nanoprecipitation.
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