Abstract: The method is: a preparation step in which a magnetic metal source, a nucleating agent, a complexing agent, a reducing agent, and a pH adjusting agent are prepared as starting materials; a crystallization step in which a reaction liquid that includes the starting materials and water is prepared, and a crystallized powder that includes the magnetic metals is made to crystallize in the reaction liquid by a reduction reaction; and a recovery step in which the crystallized powder is recovered from the reaction liquid. The magnetic metal source includes a water-soluble iron salt and a water-soluble nickel salt, the nucleating agent is a water-soluble salt of a metal that is more noble than nickel, and the complexing agent is at least one type of substance selected from the group consisting of a hydroxy carboxylic acid, a salt of a hydroxy carboxylic acid, and a derivative of a hydroxy carboxylic acid.

Abstract: To provide a positive electrode material for a lithium ion battery from which a lithium ion battery capable of enhancing output characteristics at low temperatures can be obtained, a positive electrode for a lithium ion battery in which the positive electrode material for a lithium ion battery is used, and a lithium ion battery including the positive electrode for a lithium ion battery. A positive electrode material for a lithium ion battery consisting of primary particles coated with a carbonaceous film or an agglomerate of the primary particles, in which a powder resistance Y is 500 ?·cm or more and 50000 ?·cm or less, a mass X of the carbonaceous film per unit specific surface area is 0.7 mg/m2 or more and 1.1 mg/m2 or less, and Formula (1) below is satisfied. Y?4.91×106×e?9.

Abstract: A positive electrode active material for a lithium ion secondary battery, in which the lithium-nickel-manganese composite oxide has a hexagonal layered structure, a mole number ratio of elements is represented as Li:Ni:Mn:M:Ti=a:(1-x-y-z):x:y:z, provided that 0.97?a?1.25, 0.035?x?0.15, 0?y?0.15, and 0.01?z?0.05, a ratio of a total amount of peak intensities of most intense peaks of a titanium compound to a (003) diffraction peak intensity that is the most intense peak of the hexagonal layered structure is 0.2 or less, a crystallite diameter at (003) plane is 80 nm or more and less than 160 nm, and a specific surface area is 0.7 m2/g or more and 4.0 m2/g or less.

Abstract: Provided is a precursor of a positive electrode active material containing, in a reduced amount, impurities which do not contribute to a charge/discharge reaction but rather corrode a firing furnace and peripheral equipment and thus having excellent battery characteristics and safety, and production method thereof. A method for producing a precursor of a positive electrode active material for nonaqueous electrolyte secondary batteries having a hollow structure or porous structure includes obtaining the precursor by washing nickel-manganese composite hydroxide particles having a particular composition ratio and a pore structure in which pores are present within the particles with an aqueous carbonate solution having a carbonate concentration of 0.1 mol/L or more.

Abstract: The present invention provides a method which is capable of more strictly controlling the oxygen partial pressure required during the melting of a starting material, thereby being capable of recovering a valuable metal more efficiently. A method for recovering valuable metals (Cu, Ni, Co), said method comprising the following steps: a step for preparing, as a starting material, a charge that contains at least phosphorus (P), iron (Fe) and valuable metals; a step for heating and melting the starting material into a melt, and subsequently forming the melt into a molten material that contains an alloy and slag; and a step for recovering the alloy that contains valuable metals by separating the slag from the molten material. With respect to this method for recovering valuable metals, the oxygen partial pressure in the melt is directly measured with use of an oxygen analyzer when the starting material is heated and melted.

Abstract: There is provided an anti-counterfeit ink composition, an anti-counterfeit ink, and an anti-counterfeit printed matter that transmits a visible light region, having absorption in an infrared region, and capable of judging authenticity of a printed matter, and containing composite tungsten oxide fine particles, the composite tungsten oxide fine particles having a hexagonal crystal structure, having a lattice constant such that a-axis is 7.3850 ? or more and 7.4186 ? or less, and c-axis is 7.5600 ? or more and 7.6240 ? or less, and having a particle size of the near-infrared absorbing material fine particles is 100 nm or less, and a method for producing the anti-counterfeit ink composition, the anti-counterfeit ink, the anti-counterfeit printed matter, and the anti-counterfeit ink composition.

Abstract: The present invention provides a positive electrode active material for a non-aqueous electrolyte secondary battery including a lithium metal composite oxide powder represented by a general formula: LizNi1?x?yCoxMyO2+?, wherein 0<x?0.35, 0?y?0.35, 0.95?z?1.30, ?0.15???0.15, and M is at least one element selected from Mn, V, Mg, Mo, Nb, Ti and Al; and a coating layer placed on particle surfaces of the lithium metal composite oxide powder; wherein the coating layer is a mixed-phase of a crystalline phase and an amorphous phase.

Abstract: An infrared absorbing fine particle dispersed powder, dispersion liquid containing infrared absorbing fine particle dispersed powder, ink containing infrared absorbing fine particle dispersed powder, and anti-counterfeit ink and anti-counterfeit printed matter, which are transparent in a visible light region, have excellent infrared absorption properties, and are also excellent in chemical resistance, and an infrared absorbing fine particle dispersed powder containing particles made of solid media and having an average particle size of 1 ?m or more and having infrared absorbing fine particles dispersed inside.

Abstract: The present invention is an atomization device for manufacturing metal powder by spraying a fluid to molten metal, said device comprising: a tundish into which the molten metal is poured and discharged from a discharge nozzle installed on a bottom part; fluid spray nozzles disposed below the tundish and spraying the fluid to the molten metal dropping from the tundish; a means for measuring a molten-metal surface height inside the tundish from an image obtained by imaging the inside of the tundish; and a means for, upon calculating an amount of the molten metal to be poured into the tundish from the molten-metal surface height, discharging the molten metal in such a manner that the height is maintained substantially constant. The interior of the tundish is formed in such a shape that the area of the molten-metal surface of the poured molten metal increases with height in the vertical direction.

Abstract: A method for manufacturing a sulfuric acid solution includes supplying a chloride ion-containing sulfuric acid solution as an initial electrolyte in an electrolyzer inside of which is divided into an anode chamber and a cathode chamber by a diaphragm; and subsequently taking out a metal dissolved electrolyte in which a metal constituting the anode is dissolved from the anode chamber while supplying a current to an anode and a cathode disposed in the electrolyzer.

Abstract: The present invention provides a lithium-nickel-manganese-cobalt composite oxide in which the reactivity between a lithium raw material and a metal composite hydroxide is improved so that a high low-temperature output characteristic can be achieved, a method for manufacturing the composite oxide, and a positive electrode active material and the like without causing a problem of gelation during the paste preparation. A positive electrode active material for non-aqueous electrolyte secondary batteries, including a lithium-metal composite oxide powder including a secondary particle configured by aggregating primary particles containing lithium, nickel, manganese, and cobalt, or a lithium-metal composite oxide powder including both the primary particles and the secondary particle. The secondary particle has a solid structure inside as a main inside structure, the slurry pH is 11.5 or less, the soluble lithium content rate is 0.5 [% by mass] or less, and the specific surface area is 1.0 to 2.0 [m2/g].

Abstract: Provided is a positive electrode active material for a nonaqueous electrolyte secondary battery including a LiNi composite oxide having low internal resistance and excellent thermal stability. The positive electrode active material is obtained by performing a water washing process using a water spray on a LiNi composite oxide powder obtained by a firing step until the filtrate has an electric conductivity of 30 to 60 mS/cm, and then dried, where the LiNi composite oxide is represented by the composition formula (1): LibNi1-aM1aO2, where M1 represents at least one kind of element selected from transition metal elements other than Ni, group 2 elements, and group 13 elements, and 0.01?a?0.5, and 0.85?b?1.05.

Abstract: A non-aqueous electrolyte secondary battery which is obtained using a lithium composite oxide having a layered structure and coated with a tungsten-containing compound in a positive electrode active substance, and which has a low initial resistance, and in which an increase in resistance following repeated charging and discharging is suppressed. The non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode includes a positive electrode active substance layer containing a lithium composite oxide having a layered structure. The lithium composite oxide includes a porous particle having a void ratio of not less than 20% but not more than 50%. The porous particle contains two or more voids having diameters that are at least 10% of the particle diameter of the porous particle. The surface of the porous particle is provided with a coating containing tungsten oxide and lithium tungstate.

Abstract: To provide a fine nickel powder for an internal electrode paste of an electronic component, the nickel powder obtained by a wet method and having high crystallinity, excellent sintering characteristics, and heat-shrinking characteristics. The nickel powder is obtained by precipitating nickel by a reduction reaction in a reaction solution including at least water-soluble nickel salt, salt of metal nobler than nickel, hydrazine as a reducing agent, and alkali metal hydroxide as a pH adjusting agent and water; the reaction solution is prepared by mixing a nickel salt solution including the water-soluble nickel salt and the salt of metal nobler than nickel with a mixed reducing agent solution including hydrazine and alkali metal hydroxide; and the hydrazine is additionally added to the reaction solution after a reduction reaction initiates in the reaction solution.

Abstract: An electrode material including a carbonaceous-coated electrode active material having primary particles of the electrode active material and secondary particles that are aggregates of the primary particles, and a carbonaceous film that coats the primary particles of the electrode active material and the secondary particles that are the aggregates of the primary particles, in which a specific surface area, which is obtained using a nitrogen adsorption method, is 4 m2/g or more and 40 m2/g or less, a volume of micropores per unit mass is 0.05 cm3/g or more and 0.3 cm3/g or less, and an average micropore diameter, which is obtained from the volume of the micropores per unit mass and the specific surface area, is 26 nm or more and 90 nm or less.

Abstract: Provided is a method for treating a sulfide, the method being suitable for obtaining nickel and/or cobalt from a sulfide containing copper and nickel and/or cobalt. The method relates to a method for treating a sulfide containing copper and nickel and/or cobalt, the method including pulverizing the sulfide by subjecting the sulfide to a pulverizing treatment so as to obtain a pulverized sulfide having a particle size of 800 ?m or less; and leaching the pulverized sulfide by subjecting the pulverized sulfide to a leaching treatment with an acid under a condition in which a sulfurizing agent is present to obtain a leachate. For example, the sulfide to be treated is generated by reducing, heating, and melting a waste lithium-ion battery to obtain a molten body and adding a sulfurizing agent to the molten body to sulfurize the molten body.

Abstract: Provided is a nonaqueous electrolyte secondary battery with a positive electrode active material that contains an excess of Li and has a layered structure, the nonaqueous electrolyte secondary battery having a high output and enabling prevention of gelation of the positive electrode active material layer-forming paste during production. The herein disclosed nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes a positive electrode active material layer. The positive electrode active material layer contains a lithium composite oxide having a layered structure as a positive electrode active material. The compositional ratio of the lithium atom to the metal atom other than a lithium atom contained in the lithium composite oxide is greater than 1. The lithium composite oxide is in the form of porous particles.

Abstract: A dark powder dispersion liquid including a dark pigment, composite tungsten oxide particles and a solid medium, wherein a mass ratio of the dark pigment to the composite tungsten oxide particles (mass of dark-colored pigment/mass of composite tungsten oxide fine particles) is 0.01 or more and 5 or less.

Abstract: To provide a thick film resistor paste for a resistor having a smaller resistance change rate and excellent surge resistance, a thick film resistor using the thick film resistor paste, and an electronic component provided with the thick film resistor. A thick film resistor paste comprises an organic vehicle and a conductive substance-containing glass powder comprising ruthenium oxide and lead ruthenate, the conductive substance-containing glass powder comprises 10 to 70 mass% of conductive substances, a glass composition of the conductive substance-containing glass powder comprises 3 to 30 mass% of silicon oxide, 30 to 90 mass% of lead oxide, 5 to 50 mass% of boron oxide relative to 100 mass% of glass components, and, a combined amount of silicon oxide, lead oxide and boron oxide by mass% is 50 mass% or more relative to 100 mass% of the glass components.

Abstract: Provided is a precursor of a positive electrode active material containing, in a reduced amount, impurities which do not contribute to a charge/discharge reaction but rather corrode a firing furnace and peripheral equipment and thus having excellent battery characteristics and safety, and production method thereof. A method for producing a precursor of a positive electrode active material for nonaqueous electrolyte secondary batteries having a hollow structure or porous structure includes obtaining the precursor by washing nickel-manganese composite hydroxide particles having a particular composition ratio and a pore structure in which pores are present within the particles with an aqueous carbonate solution having a carbonate concentration of 0.1 mol/L or more.