Development of glass solid electrolytes for all-solid-state sodium batteries
| Project/Area Number |
26289243
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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 |
Inorganic materials/Physical properties
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
Hayashi Akitoshi 大阪府立大学, 工学(系)研究科(研究院), 准教授 (10364027)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000)
Fiscal Year 2016: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2015: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2014: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
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| Keywords | 固体電解質 / 全固体電池 / ガラス / ナトリウム電池 |
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| Outline of Final Research Achievements |
Na3PS4-based glass electrolytes with a partial cation (M=Si, Al, Sn) or anion (O) substitution were prepared and characterized. Cubic Na3PS4 was mainly precipitated at the compositions with a small amount of the substituent. The partial substitution of Si for P increased the conductivity of the electrolytes, while the substitution of Sn or O for P or S improved chemical stability in air. Cubic Na3PS4 was also synthesized via liquid-phase or gas-phase process. Novel oxide glass electrolytes with good formability were developed. The use of carbon conductive additives with larger specific surface doped with sulfur via a melt-diffusion process was effective in increasing capacity of all-solid-state Na/S batteries.
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Report
(4 results)
Research Products
(65 results)
