Abstract: A solid electrolyte material is made of Li, Ca, Y, Gd, X, O, and H, where X is at least one selected from the group consisting of F, Cl, Br, and I; and the molar ratio of O to the sum of Y and Gd is greater than 0 and less than 0.82.

Abstract: The production method of the present disclosure includes heat-treating a material mixture containing a compound containing Y, a compound containing Sm, NH4?, Li?, and Ca?2 in an inert gas atmosphere. The compound containing Y is at least one selected from the group consisting of Y2O3 and Y?3, and the compound containing Sm is at least one selected from the group consisting of Sm2O3 and Sm?3. The material mixture contains at least one selected from the group consisting of Y2O3 and Sm2O3, and ?, ?, ?, ?, and ? are each independently at least one selected from the group consisting of F, Cl, Br, and I.

Abstract: A production method for producing a halide, the method includes a heat treatment step of heat-treating a mixed material containing (NH4)aY?3+a, (NH4)bSm?3+b, Li?, and Ca?2 in an inert gas atmosphere, wherein ?, ?, ?, and ? are each independently at least one selected from the group consisting of F, Cl, Br, and I, and the following three formulas: 0?a?3, 0?b?3, and 0<a+b?6, are satisfied.

Abstract: The solid electrolyte material of the present disclosure includes Li, Ca, Y, Sm, X, O, and H, wherein, X is at least one selected from the group consisting of F, Cl, Br, and I; and the molar ratio of O to the sum of Y and Sm is greater than 0 and less than 0.32.

Abstract: A production method for producing a halide, the method includes a heat treatment step of heat-treating a mixed material containing (NH4)aY?3+a, (NH4)bGd?3+b, Li?, and Ca?2 in an inert gas atmosphere, wherein ?, ?, ?, and ? are each independently at least one selected from the group consisting of F, Cl, Br, and I, and the formulas: 0?a?3, 0?b?3, and 0<a+b?6, are satisfied.

Abstract: The production method of the present disclosure includes: heat-treating a material mixture containing LiA, YB3, GdC3, and CaD2 in an inert gas atmosphere. A, B, C, and D are each independently at least one selected from the group consisting of F, Cl, Br, and I. In the heat-treating, the material mixture is heat-treated at higher than or equal to 200° C. and lower than or equal to 700° C.

Abstract: The solid electrolyte material of the present disclosure includes Li, Ca, Y, Sm, X, and O, where Xis at least one selected from the group consisting of F, Cl, Br, and I; and the molar ratio of O to the sum of Y and Sm in a surface area of the solid electrolyte material is higher than the molar ratio of O to the sum of Y and Sm in the entire solid electrolyte material.

Abstract: Provided is a battery including a positive electrode including a first positive electrode layer and a second positive electrode layer; a negative electrode; and an electrolyte layer. The first positive electrode layer includes a first positive electrode active material, a first solid electrolyte material, and a coating material. The second positive electrode layer includes a second positive electrode active material and the first solid electrolyte material. The first solid electrolyte material includes lithium, at least one kind selected from the group consisting of metalloid elements and metal elements other than lithium; and at least one kind selected from the group consisting of chlorine and bromine. The first solid electrolyte material does not include sulfur.

Abstract: A positive electrode material contains a positive electrode active material and a first solid electrolyte material. The first solid electrolyte material contains Li, M, and X; M at least contains yttrium; and X is at least one selected from the group consisting of Cl, Br, and I.

Abstract: An adapter which controls rotation of a microscope on which a slide is placed and an imaging unit and which easily performs correction of a rotation shift is provided. The adapter includes a first connection member connected to a microscope, a second connection member connected to an imaging unit, a rotation member arranged between the first and second connection members and configured to rotate the second connection member relative to the first connection member using optical axes of the microscope and the imaging unit at a center, a control member configured to be fixed on one of the first and second connection members and control the rotation of the connection member, and a driving member configured to be engaged with the first connection member or the second connection member and change a position of the second connection member relative to the first connection member around the optical axes.

Abstract: A solid electrolyte material of the present disclosure includes Li, Zr, and F. A ratio of an amount of substance of Li to an amount of substance of Zr is less than 3.5. In an X-ray diffraction pattern obtained by an X-ray diffraction measurement of the solid electrolyte material using a Cu—K? ray, a ratio of a value of a full width at half maximum of a peak having a highest intensity within a range of a diffraction angle 2? from 27.5° to 29.5° to a value of a full width at half maximum of a peak corresponding to a (111) plane of Si in an X-ray diffraction pattern of Si measured under a same condition as in the X-ray diffraction measurement is more than 1.06.

Abstract: A solid electrolyte material is represented by the following compositional formula (1): Li3-3?-2aY1+?-aMaCl6-x-yBrxIy where, M is at least one selected from the group consisting of Ta and Nb; and ?1<?<1, 0<a<1.2, 0<(3?3??2a), 0<(1+??a), 0?x?6, 0?y?6, and (x+y)?6 are satisfied.

Abstract: A solid electrolyte material of the present disclosure includes Li, Zr, and F. A ratio of an amount of substance of Li to an amount of substance of Zr is 3.5 or more. In an X-ray diffraction pattern obtained by an X-ray diffraction measurement of the solid electrolyte material using a Cu-K? ray, a ratio of a value of a full width at half maximum of a peak having a highest intensity within a range of a diffraction angle 2? from 42.5° to 44.7° to a value of a full width at half maximum of a peak corresponding to a (111) plane of Si in an X-ray diffraction pattern of Si measured under a same condition as in the X-ray diffraction measurement is more than 1.19.

Abstract: A solid electrolyte material contains Li; Y; at least one selected from the group consisting of Mg, Ca, Sr, Ba, Zn, Zr, Nb, and Ta; and at least one selected from the group consisting of Cl, Br, and I. An X-ray diffraction pattern of the solid electrolyte material obtained using Cu—K? radiation as an X-ray source includes peaks in a range of diffraction angles 2? of 30° or more and 33° or less, in a range of diffraction angles 2? of 39° or more and 43° or less, and in a range of diffraction angles 2? of 47° or more and 51° or less.

Abstract: A solid electrolyte material contains Li, Y, at least one selected from the group consisting of Mg, Ca, Sr, Ba, Zn, Sc, La, Sm, Bi, Zr, Hf, Nb, and Ta, and at least one selected from the group consisting of Cl, Br, and I. An X-ray diffraction pattern of the solid electrolyte material obtained by using Cu-K? radiation as the X-ray source includes peaks within the range in which the diffraction angle 2? is 25° or more and 35° or less, and also includes at least one peak within the range in which the diffraction angle 2? is 43° or more and 51° or less.

Abstract: The solid electrolyte material comprises Li, Y, X, and O, where X is one selected from the group consisting of F, Cl, Br, and I, and the molar ratio of O to Y is greater than 0.01 and less than 0.52.

Abstract: The solid electrolyte material comprises Li, Y, X, O, and H, where X is one selected from the group consisting of F, Cl, Br, and I, and the molar ratio of O to Y is greater than 0.01 and less than 0.38.

Abstract: A solid electrolyte material includes a first crystal phase. The first crystal phase has a composition that is deficient in Li as compared with a composition represented by the following composition formula (1).

Abstract: A solid electrolyte material is composed of Li, M, and X, where M is at least one kind of element selected from the group consisting of metalloid elements and metallic elements other than Li, and X is at least one kind of element selected from the group consisting of F, Cl, Br and I. In the solid electrolyte material, the mathematical formula FWHM/2?p?0.015 is satisfied, where FWHM represents a half bandwidth of an X-ray diffraction peak having the highest intensity within a range of a diffraction angle 2? of not less than 25 degrees and not more than 35 degrees in an X-ray diffraction pattern provided by an X-ray diffraction measurement of the solid electrolyte material; the X-ray diffraction measurement using a Cu-K? ray; and 2?p represents a diffraction angle of a center of the X-ray diffraction peak.

Abstract: Provided is a solid electrolyte material comprising Li, Y, Br, and I, wherein in an X-ray diffraction pattern in which Cu-K? is used as a radiation source, peaks are present within all ranges of diffraction angles 2? of 12.5° to 14.0°, 25.0° to 27.8°, 29.2° to 32.3°, 41.9° to 46.2°, 49.5° to 54.7°, and 51.9° to 57.5°.