SULFIDE SOLID ELECTROLYTE MATERIAL, BATTERY, AND PRODUCING METHOD FOR SULFIDE SOLID ELECTROLYTE MATERIAL
First Claim
1. A sulfide solid electrolyte material comprising an M1 element, an M2 element, a S element and an O element, whereinthe M1 contains at least Li;
- the M2 is at least one kind selected from the group consisting of P, Sb, Si, Ge, Sn, B, Al, Ga, In, Ti, Zr, V and Nb; and
having a peak at a position of 2θ
=20.18°
±
0.50°
, 2θ
=20.44°
±
0.50°
, 2θ
=26.96°
±
0.50° and
2θ
=29.58°
±
0.50°
in an X-ray diffraction measurement using a CuKα
ray; and
wherein when a diffraction intensity at the peak of 2θ
=29.58°
±
0.50°
is regarded as IA and a diffraction intensity at a peak of 2θ
=27.33°
±
0.50°
is regarded as IB, a value of IB/IA is less than 0.50.
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Accused Products
Abstract
The object of the present invention is to provide a sulfide solid electrolyte material with favorable ion conductivity. The present invention attains the object by providing a sulfide solid electrolyte material including an M1 element (such as a Li element), an M2 element (such as a Ge element and a P element), a S element and an O element, and having a peak at a position of 2θ=29.58°±0.50° in an X-ray diffraction measurement using a CuKα ray, characterized in that when a diffraction intensity at the peak of 2θ=29.58°±0.50° is regarded as IA and a diffraction intensity at a peak of 2θ=27.33°±0.50° is regarded as IB, a value of IB/IA is less than 0.50.
-
Citations
8 Claims
-
1. A sulfide solid electrolyte material comprising an M1 element, an M2 element, a S element and an O element, wherein
the M1 contains at least Li; -
the M2 is at least one kind selected from the group consisting of P, Sb, Si, Ge, Sn, B, Al, Ga, In, Ti, Zr, V and Nb; and having a peak at a position of 2θ
=20.18°
±
0.50°
, 2θ
=20.44°
±
0.50°
, 2θ
=26.96°
±
0.50° and
2θ
=29.58°
±
0.50°
in an X-ray diffraction measurement using a CuKα
ray; andwherein when a diffraction intensity at the peak of 2θ
=29.58°
±
0.50°
is regarded as IA and a diffraction intensity at a peak of 2θ
=27.33°
±
0.50°
is regarded as IB, a value of IB/IA is less than 0.50. - View Dependent Claims (4, 5, 6, 7)
-
-
2. A sulfide solid electrolyte material comprising an M1 element, an M2 element, a S element and an O element, wherein
the M1 contains at least Li; - the M2 is at least one kind selected from the group consisting of P, Sb, Si, Ge, Sn, B, Al, Ga, In, Ti, Zr, V and Nb; and
having a peak at a position of 2θ
=20.18°
±
0.50°
, 2θ
=20.44°
±
0.50°
, 2θ
=26.96°
±
0.50° and
2θ
=29.58°
±
0.50°
in an X-ray diffraction measurement using a CuKα
ray; andwherein the sulfide solid electrolyte material does not have a peak at a position of 2θ
=27.33°
±
0.50°
in the X-ray diffraction measurement using the CuKα
ray, or wherein when a diffraction intensity at the peak of 2θ
=29.58°
±
0.50°
is regarded as IA and a diffraction intensity at the peak of 2θ
=27.33°
±
0.50°
is regarded as IB in a case the sulfide solid electrolyte material has a peak at the position of 2θ
=27.33°
±
0.50°
, a value of IB/IA is less than 0.50.
- the M2 is at least one kind selected from the group consisting of P, Sb, Si, Ge, Sn, B, Al, Ga, In, Ti, Zr, V and Nb; and
-
3. A sulfide solid electrolyte material having an octahedron O composed of an M1 element and a S element, a tetrahedron T1 composed of an M2a element and a S element, and a tetrahedron T2 composed of an M2b element and a S element,
wherein the tetrahedron T1 and the octahedron O share an edge, the tetrahedron T2 and the octahedron O contain a crystal structure sharing a corner as a main body; -
the M1 contains at least Li; the M2a and the M2b are each independently at least one kind selected from the group consisting of P, Sb, Si, Ge, Sn, B, Al, Ga, In, Ti, Zr, V and Nb; and at least one of the octahedron O, the tetrahedron T1 and the tetrahedron T2 is such that a part of the S element is substituted with an O element. - View Dependent Claims (8)
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Specification