Glass particles
Glass particles including Li, P and S, wherein when a Raman spectrum of the glass particles is measured five times or more and a peak at 330 to 450 cm −1 in the Raman spectrum is separated into peaks of components by waveform separation, the standard deviation of the area ratio of each of the peaks of the components is 3.0 or less, the area of the peak of PS 4 3− component obtained by the waveform separation is 10 to 95% of the total area, and the area of P 2 S 7 4− component obtained by the waveform separation is 5 to 45% of the total area, and the area of the peak of PS 4 3− component is larger than the area of the peak of P 2 S 7 4− component.
1. Glass particles, comprising Li, P and S, wherein when a Raman spectrum of the glass particles is measured five times or more and a peak at 330 to 450 cm −1 in the Raman spectrum is separated into peaks of components by waveform separation,
a standard deviation of the area ratio of each of the peaks of the components is 3.0 or less,
an area of the peak of PS 4 3− component obtained by the waveform separation is 10 to 95% of the total area,
an area of P 2 S 7 4− component obtained by the waveform separation is 5 to 45% of the total area, and
the area of the peak of PS 4 3− component is larger than the area of the peak of P 2 S 7 4− component.
2. The glass particles according to claim 1 , wherein:
the standard deviation is 2.7 or less,
the area of the peak of PS 4 3− component is 70 to 90% of the total area; and
the area of P 2 S 7 4− component is 5 to 20% of the total area.
3. The glass particles according to claim 1 , having an average particle diameter of 10 μm or less.
4. The glass particles according to claim 1 , which are produced from lithium sulfide having a specific surface area of 0.1 m 2 /g or more and a pore volume of 0.02 ml/g or more.
5. The glass particles according to claim 1 , wherein the standard deviation is 2.0 or less.
6. The glass particles according to claim 1 , wherein the area of the peak of PS 4 3− component is 70 to 90% of the total area.
7. The glass particles according to claim 1 , wherein the area of the peak of P 2 S 7 4− component is 5 to 20% of the total area.
8. The glass particles according to claim 1 , having an average particle diameter of 0.10 μm or more and 8 μm or less.
9. The glass particles according to claim 2 , having an average particle diameter of 10 μm or less.
10. The glass particles according to claim 2 , having an average particle diameter of 0.10 μm or more and 8 μm or less.
11. The glass particles according to claim 4 , wherein the specific surface area is 1.0 m 2 /g or more.
12. The glass particles according to claim 4 , wherein the pore volume is 0.05 ml/g or more.
13. The glass particles according to claim 1 , which are produced from Li 2 S and P 2 S 5 .
14. The glass particles according to claim 13 , wherein Li 2 S:P 2 S 5 in the amount ratio is 72 to 82 mol %:28 to 18 mol %.
15. The glass particles according to claim 1 , wherein an amount of an organic solvent remained in the glass particles is 5.0 wt % or less.
16. The glass particles according to claim 1 , wherein an amount of an organic solvent remained in the glass particles is 3.0 wt % or less.