Abstract: A positive electrode for an all-solid-state battery that comprises a sulfide-based solid electrolyte and a covered active material. The covered active material includes a positive electrode active material particle and a coating film covering at least part of a surface of the positive electrode active material particle. The coating film includes a lithium-ion-conductive oxide, and also includes NOx at at least a surface thereof. A NOx content at the surface of the coating film is more than 1000 ppm.

Abstract: An electrode comprises a sulfide-based solid electrolyte and a composite particle. The sulfide-based solid electrolyte includes S and P, has a PS4 crystalline phase, and has a molar ratio of the PS4 crystalline phase to a total amount of phases consisting of P and S of 60% or more. The composite particle comprises a positive electrode active material particle and a coating film covering at least part of a surface of the positive electrode active material particle. The coating film includes a phosphorus compound. The phosphorus compound includes at least one of a first element (a glass network forming element) and a second element (a transition element) as well as phosphorus. In the coating film, a relationship of “expression (1): CLi/(CP+CE1+CE2)?2.5” is satisfied. CLi, CP, CE1, and CE2 represent element concentrations of respective elements measured by XPS.

Abstract: An electrode comprises a sulfide-based solid electrolyte, an electrolyte microparticle, and a composite particle. The sulfide-based solid electrolyte includes S and P, has a PS4 crystalline phase, and has a molar ratio of the PS4 crystalline phase to a total amount of phases consisting of P and S of 60% or more. A ratio of a D50 of the electrolyte microparticle to a D50 of the sulfide-based solid electrolyte is 0.5 or less. The composite particle comprises a positive electrode active material particle and a coating film. The coating film includes a phosphorus compound. The phosphorus compound includes at least one of a first element (a glass network forming element) and a second element (a transition element) as well as phosphorus. In the coating film, a relationship of “expression (1): CLi(CP+CE1+CE2)?2.5” is satisfied. CLi, CP, CE1, and CE2 represent element concentrations of respective elements measured by XPS.

Abstract: The all-solid-state battery includes a positive electrode layer, a separator layer, and a negative electrode layer. The separator layer includes a sulfide solid electrolyte. In a cross section parallel to the thickness direction of the separator layer, a line analysis is performed by SEM-EDX to measure an atom concentration of sulfur and an atom concentration of iodine on a straight line extending from the negative electrode layer to the positive electrode layer in parallel to the thickness direction. A regression line is derived from the results of the line analysis, and the regression line has a slope of 0.019 to 0.036. The independent variable of the regression line is a position in the thickness direction of the separator layer. The dependent variable of the regression line is a ratio of the atom concentration of iodine to the atom concentration of sulfur.

Abstract: The conductive material is used for the positive electrode of the battery. The conductive material includes a substrate and a film. The film covers at least a portion of the surface of the substrate. The substrate comprises a conductive carbon material. The film includes a glass network forming element and oxygen.

Abstract: The all-solid-state battery includes a positive electrode layer, a separator layer, and a negative electrode layer. The separator layer includes a sulfide solid electrolyte. In a cross section parallel to the thickness direction of the separator layer, a line analysis is performed by SEM-EDX to measure an atom concentration of sulfur and an atom concentration of iodine on a straight line extending from the negative electrode layer to the positive electrode layer in parallel to the thickness direction. A regression line is derived from the results of the line analysis, and the regression line has a slope of 0.019 to 0.036. The independent variable of the regression line is a position in the thickness direction of the separator layer. The dependent variable of the regression line is a ratio of the atom concentration of iodine to the atom concentration of sulfur.

Abstract: In the present disclosure, a positive electrode layer used in an all-solid-state battery includes a positive electrode active material, a sulfide solid electrolyte, and a coated sulfide solid electrolyte having a coating layer covering a surface of the sulfide solid electrolyte and containing a metal sulfate, and in an S2p spectrum obtained by X-ray photoelectron spectroscopy (XPS) on the coated sulfide solid electrolyte, a ratio (P2/P1) of an intensity P2 of a peak appearing near 163 eV to an intensity P1 of a peak appearing near 167 eV is 0.15 or more and less than 0.36, thereby solving the above problem.

Abstract: The all-solid-state battery includes a positive electrode layer, a separator layer, and a negative electrode layer. The separator layer includes a sulfide solid electrolyte. In a cross section parallel to the thickness direction of the separator layer, a line analysis is performed by SEM-EDX to measure an atom concentration of sulfur and an atom concentration of iodine on a straight line extending from the negative electrode layer to the positive electrode layer in parallel to the thickness direction. A regression line is derived from the results of the line analysis, and the regression line has a slope of 0.019 to 0.036. The independent variable of the regression line is a position in the thickness direction of the separator layer. The dependent variable of the regression line is a ratio of the atom concentration of iodine to the atom concentration of sulfur.

Abstract: Disclosed are methods and apparatuses for detecting mercury species in various gas streams, such as those generated from fossil fuel combustion.

Abstract: The present invention provides a method for producing a homogeneous complex oxide sol comprising Si and a metal other than Si as metal elements, and a method for producing a Si-containing hologram recording material using a homogeneous complex oxide sol. A method for producing a complex oxide sol comprising Si and a metal other than Si as metal elements, the method comprising: mixing a silanol compound with an alkoxide compound of a metal other than Si so that the silanol compound is reacted with the alkoxide compound, thereby yielding a precursor of a complex oxide, and adding water to the complex oxide precursor so as to hydrolyze an alkoxyl group bonded to the metal other than Si, and then making the resulting hydrolysate undergo a condensation reaction, thereby forming a complex oxide. A hologram recording medium (11) having a hologram recording layer (21) comprising the hologram recording material obtained by the production method.