| 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)
|
|---|
| 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.
|
