| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Outline of Final Research Achievements |
For Development of a solid lithium ion battery having high safety and function, we synthesized a new network polymer consisting of a rotaxane structure; RN1-RN4. The “slide-ring gel effect” was investigated by NMR, DSC, dynamic viscoelastic, tensile, and ionic conductivity measurement etc. In DSC and tensile data, [2]rotaxane network (RN1) showed the lowest Tg and highest elongation characteristic. In addition, the dynamic viscoelastic behavior indicated that RN1 had “slide-ring region” at high temperature. We can’t measurement of the ionic conductivity of a solid polymer electrolyte consisting of RN1 and LiPF6 because of high bulk resistance. However, the polymer gel electrolyte with 1.0M LiPF6/EC-DMC showed a high ionic conductivity in low swelling degree. When the swelling degree was 60%, the ionic conductive behavior showed lower temperature dependence. The results supported the presence of “slide-ring effect” in these rotaxane networks.
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