Abstract: A main object of the present disclosure is to provide a sulfide solid electrolyte capable of suppressing a decrease in Li ion conductivity due to moisture. The present disclosure achieves the object by providing a sulfide solid electrolyte comprising a Li element, a P element, a S element and an O element, and having a granular shape, and including a crystal portion oriented along the granular shape, on an inner surface of the sulfide solid electrolyte.

Abstract: A sulfide solid electrolyte material contains element M1, element M2, element M3 and element S. Element M1 is at least one type selected from the group consisting of Li, Na, K, Mg Ca and Zn, and contains at least one of Li and Na. Element M2 is at least one type selected from the group consisting of P, Sb, Si, Ge, Sn, B, Al, Ga, In, Ti, Zr and V, and contains at least P.

Abstract: A hydride ion conductor represented by a general formula: Ba2-x-mAxMg1-y-nByH6-x-y-2m-2n??(1), wherein A and B are each selected from at least one or more of the group consisting of Li, Na, K, Rb, and Cs, and 0?x?1, 0?y?1, 0?m?0.2, and 0?n?0.2, excluding a case where x=y=m=n=0.

Abstract: A hydride ion conductor is represented by: MAMBH4-xFx??Formula (1), where MA is selected from the group consisting of Ca, Sr, and Ba, MB is selected from the group consisting of Mg and Ca, and is different from MA, and x is 0<x<4.

Abstract: A sulfide solid electrolyte is capable of suppressing a decrease in Li ion conductivity due to moisture. A sulfide solid electrolyte includes a Li element, a P element, a S element and an O element, and having a granular shape, and including a crystal portion oriented along the granular shape, on an inner surface of the sulfide solid electrolyte.

Abstract: Disclosed is a solid electrolyte for a solid-state battery having improved water resistance. The solid electrolyte for a solid-state battery includes a sulfide-based solid electrolyte and a LiBr-containing absorbent material, wherein the binding energy of Li1s shows a peak observed at 54.2-56.1 eV, and the binding energy of Br3d shows a peak observed at 67.5-69.5 eV, as determined by X-ray photoelectron spectroscopy (XPS).

Abstract: A main object of the present disclosure is to provide a sulfide solid electrolyte with excellent water resistance. The present disclosure achieves the object by providing a sulfide solid electrolyte including a LGPS type crystal phase, and containing Li, Ge, P, and S, wherein: when an X-ray photoelectron spectroscopy measurement is conducted to a surface of the sulfide solid electrolyte, a proportion of Ge2+ with respect to total amount of Ge is 20% or more.

Abstract: Disclosed are a solid electrolyte material including a naturally abundant element as a base, having lithium ion conductivity equal or superior to those of conventional sulfide solid electrolyte materials, being relatively inexpensive, and having a crystal structure, a manufacturing method thereof, and a battery using the same. The solid electrolyte material may include a naturally abundant element as a base, have lithium ion conductivity equal or superior to those of conventional sulfide solid electrolyte materials, be relatively inexpensive, and have a crystal structure. The sulfide solid electrolyte material includes a sulfide compound represented by a formula of Li2?4x?ySi1+x?yPyS3, and x and y satisfy conditions ?0.040?x?0.095 and 0.036?y?0.192.

Abstract: Provided is a sulfide solid electrolyte material which has a composition that does not contain Ge, while having a smaller Li content than conventional sulfide solid electrolyte materials, and which has both lithium ion conductivity and chemical stability at the same time. A sulfide solid electrolyte which has a crystal structure represented by composition formula (Li3.45+??4?Sn?)(Si0.36Sn0.09)(P0.55??Si?)S4 (wherein ??0.67, ??0.33 and 0.43<?+? (provided that 0.23<??0.4 when ?=0.2 and 0.13<??0.4 when ?=0.3 may be excluded)), or a crystal structure represented by composition formula Li7+?Si?P1??S6 (wherein 0.1??<0.3).

Abstract: A sulfide solid electrolyte is capable of suppressing a decrease in Li ion conductivity due to moisture. A sulfide solid electrolyte includes a Li element, a P element, a S element and an O element, and having a granular shape, and including a crystal portion oriented along the granular shape, on an inner surface of the sulfide solid electrolyte.

Abstract: The problem of the present invention is to provide a sulfide solid electrolyte material with favorable reduction resistance. The present invention solves the problem by providing a sulfide solid electrolyte material having a peak at a position of 2?=30.26°±1.00° in X-ray diffraction measurement using a CuK? ray, and having a composition of Li(4?x?4y)Si(1?x+y)P(x)S(4?2a?z)O(2a+z) (a=1?x+y, 0.65?x?0.75, ?0.025?y?0.1, ?0.2?z?0).

Abstract: (Problem to be Solved) The present invention was made in view of the above-described problems, with an object of providing a Li—P—S-based sulfide solid electrolyte material with both excellent electrochemical stability and a high lithium ion conductivity, providing a method of producing the Li—P—S-based sulfide solid electrolyte material, and providing a lithium battery including the sulfide solid electrolyte material. (Solution) There is provided a sulfide solid electrolyte material including a Li element, a P element, and a S element and having peaks at positions of 2?=17.90±0.20, 29.0±0.50, and 29.75±0.25? in powder X-ray diffraction measurement using a Cu-K? ray having an X-ray wavelength of 1.5418 ?, in which assuming that the diffraction intensity of the peak at 2?=17.90±0.20 is IA and the diffraction intensity of the peak at 2?=18.50±0.20 is IB, a value of IB/IA is less than 0.50.

Abstract: (Problem to be Solved) A solid electrolyte material with favorable ion conductivity is demanded from the viewpoint of the higher output of a battery. The present invention was made in view of the above-described problems, with an object of providing a sulfide solid electrolyte material with favorable Li ion conductivity and providing a lithium battery including the sulfide solid electrolyte material. (Solution) There are provided: a solid electrolyte including a sulfide-based solid electrolyte represented by a composition formula: (Li2S)x(MS2)y(P2S5)z, in which M is at least one selected from the group consisting of Ge, Sb, Si, Sn, B, Al, Ga, In, Zr, V, and Nb, and 0.53?x?0.74, 0.13?y?0.37, 0.04?z?0.15, and x+y+z=1 are satisfied; and a lithium battery including the solid electrolyte.

Abstract: A sulfide solid electrolyte material has favorable ion conductivity and resistance to reduction. The sulfide solid electrolyte material includes a peak at a position of 2?=29.86°±1.00° in X-ray diffraction measurement using a CuK? ray, and a composition of Li2y+3PS4 (0.1?y?0.175).

Abstract: In order to improve the stability of an electrolyte, an object of the present disclosure is to develop, among the sulfide solid electrolytes of Li—P—S—O based 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 present disclosure achieves the object by providing a solid electrolyte material including a sulfide composition represented by a composition formula Li4-4y-xP4+1+y-xP5+xS4-zOz (Li4-4y-xP1+yS4-zOz), wherein 0.6?x<1, 0?z?0.2, and ?0.025?y?0.1, and a method for producing the same.

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 2?=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 CuK? ray, and method for producing the same.

Abstract: Provided is a sulfide solid electrolyte material which has a composition that does not contain Ge, while having a smaller Li content than conventional sulfide solid electrolyte materials, and which has both lithium ion conductivity and chemical stability at the same time. A sulfide solid electrolyte which has a crystal structure represented by composition formula (Li3.45+??4?Sn?)(Si0.36Sn0.09)(P0.55??Si?)S4 (wherein ??0.67, ??0.33 and 0.43<?+? (provided that 0.23<??0.4 when ?=0.2 and 0.13<??0.4 when ?=0.3 may be excluded)), or a crystal structure represented by composition formula Li7+?Si?P1??S6 (wherein 0.1??<0.3).

Abstract: The present invention aims to provide a sulfide solid electrolyte material with favorable ion conductivity, in which charge and discharge efficiency may be inhibited from decreasing. The object is attained by providing a sulfide solid electrolyte material, including: a Li element; a P element; and a S element, characterized in that the material has a peak at a position of 2?=30.21°±0.50° in X-ray diffraction measurement using a CuK? ray, and the sulfide solid electrolyte material does not substantially include a metallic element belonging to the third group to the sixteenth group.

Abstract: To provide a sulfide solid electrolyte material which does not include Ge and which has excellent electrochemical stability and high lithium ion conductivity. A sulfide solid electrolyte, including a sulfide-based solid electrolyte represented by the composition formula: Li4-4z-x[SnySi1-y]1+z-xPxS4 (where 0.5?x?0.6, y=0.2, and 0?z??0.2), wherein the sulfide solid electrolyte has a peak at position 2?=29.58°±0.50° in X-ray diffraction measurement using CuK? radiation and does not have a peak at position 2?=27.33°±0.50° in X-ray diffraction measurement using CuK? radiation, or when the sulfide solid electrolyte has a peak at the position 2?=27.33°±0.50°, the value of IB/IA is less than 0.50 (where IA is the diffraction intensity of the 2?=29.58°±0.50° peak and IB is the diffraction intensity of the 2?=27.33°±0.50° peak).

Abstract: In order to improve the stability of an electrolyte, an object of the present disclosure is to develop, among the sulfide solid electrolytes of Li—P—S—O based 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 present disclosure achieves the object by providing a solid electrolyte material including a sulfide composition represented by a composition formula Li4-4y-xP4+1+y-xP5+xS4-zOz (Li4-4y-xP1+yS4-zOz), wherein 0.6?x<1, 0?z?0.2, and ?0.025?y?0.1, and a method for producing the same.