| Project/Area Number |
16K18252
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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 |
Structural/Functional materials
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| Research Institution | Tohoku University |
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Principal Investigator |
Kajita Tetsuya 東北大学, 学際科学フロンティア研究所, 助教 (50729233)
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| Co-Investigator(Renkei-kenkyūsha) |
ITOH Takashi 東北大学, 学際科学フロンティア研究所, 准教授 (40302187)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 二次電池 / 負極 / アモルファス / ナトリウム / Naイオン / ナトリウム二次電池 / ゲルマニウム / 電池材料 / Naイオン二次電池 |
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| Outline of Final Research Achievements |
The aim of this research project is to create a highly amorphized material using soft chemistry method and develop new electrode material group for Na-ion battery. We synthesized highly amorphous Si and Ge oxide powders by soft chemistry method. However, only the amorphous Ge oxide powder showed the electrochemical performance for the Na-ion battery. In the soft chemical synthesis, fine particles of several microns was observed by using 2-propanol, a secondary alcohol, as the alcohol species for oxidizing Zintle phase NaM. Using an ether solvent for the Na-ion battery electrolyte solution, the electrochemical performances of the amorphous Ge oxide material were greatly improved.
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