Solid electrolyte material and method for producing the same
First Claim
1. A solid electrolyte material comprising a sulfide composition represented by a composition formula Li4−
- 4y−
x−
zP4+1+y−
xP5+xS4−
zXz (Li4−
4y−
x−
zP1−
yS4−
zXz), wherein 0.2≤
x<
1.0, 0≤
z≤
0.2, and 0≤
y≤
0.075, andX is at least one of F, Cl, N and OH, andthe solid electrolyte material has a peak at a position of 2θ
=17.8°
±
0.1°
, 19.1°
±
0.1°
, 21.7°
±
0.1°
, 23.8°
±
0.1° and
30.85°
±
0.1°
in X-ray diffraction measurement using a CuKα
ray.
1 Assignment
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Accused Products
Abstract
To improve the stability of an electrolyte, among the sulfide solid electrolytes of Li—P—S—X based (X is at least one of F, Cl, N and OH) containing no metal element other than lithium, a new solid electrolyte having a possibility to have high ion conductivity and a method for producing for obtaining the same easily. The disclosure achieves the object by providing a solid electrolyte material including a sulfide composition represented by a composition formula Li4−4y−x−zP4+1+y−xP5+xS4−zXz (Li4−4y−x−zP1+yS4−zXz), wherein 0.2≤x<1.0, 0≤z≤0.2, and 0≤y≤0.075, and X is at least one of F, Cl, N and OH, and the solid electrolyte material has a peak at a position of 2θ=17.8°±0.1°, 19.1°±0.1°, 21.7°±0.1°, 23.8°±0.1° and 30.85°±0.1° in X-ray diffraction measurement using a CuKα ray, and method for producing the same.
-
Citations
4 Claims
-
1. A solid electrolyte material comprising a sulfide composition represented by a composition formula Li4−
- 4y−
x−
zP4+1+y−
xP5+xS4−
zXz (Li4−
4y−
x−
zP1−
yS4−
zXz), wherein 0.2≤
x<
1.0, 0≤
z≤
0.2, and 0≤
y≤
0.075, andX is at least one of F, Cl, N and OH, and the solid electrolyte material has a peak at a position of 2θ
=17.8°
±
0.1°
, 19.1°
±
0.1°
, 21.7°
±
0.1°
, 23.8°
±
0.1° and
30.85°
±
0.1°
in X-ray diffraction measurement using a CuKα
ray. - View Dependent Claims (2, 3, 4)
- 4y−
Specification