Abstract: A titanium oxide powder of the present invention has a BET specific surface area of 5 m2/g or more and 15 m2/g or less and contains polyhedral-shaped titanium oxide particles having eight or more faces, in which a mass reduction rate in a case of being heated at 800° C. for 1 hour in an air atmosphere is 0.03% by mass or more and 0.5% by mass or less.

Abstract: A positive electrode material for lithium-ion secondary batteries, wherein the positive electrode material includes a carbon-coated positive electrode active material which comprises primary particles, secondary particles, and a carbon film, wherein the primary particles and the secondary particles are coated with the carbon film, wherein the primary particles consists of a positive electrode active material in which a strain of the positive electrode active material, which is calculated by X-ray diffraction measurement, is 0.01% or higher and 0.1% or lower, and a ratio (B/A) of a crystallite diameter B (nm) of the positive electrode active material to an average primary particle diameter A (nm) of the carbon-coated positive electrode active material is 0.9 or higher and 1.5 or lower, wherein the particle diameter A is calculated from a specific surface area of the carbon-coated positive electrode active material, wherein the specific surface area is obtained using a BET method.

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: A positive electrode material for lithium-ion secondary batteries includes a granulated body in which a volume of pores having a pore size of 2 nm to 100 nm calculated from a cumulative pore volume distribution is 0.1 cm3/g or higher and 0.2 cm3/g or lower and a ratio of a volume of pores having a pore size of 20 nm to 70 nm is 65% or higher with respect to 100% of the volume of pores having a pore size of 2 nm to 100 nm.

Abstract: A method of producing a positive electrode material for lithium-ion secondary batteries, which includes a pyrolyzed carbon coating, the method including a heat treatment step of thermally decomposing an organic compound using a rotary kiln to form a pyrolyzed carbon coating, wherein the organic compound is a carbon source that forms the pyrolyzed carbon coating of a positive electrode material.

Abstract: A cathode material for a lithium ion secondary battery including agglomerated particles formed by agglomeration of a plurality of primary particles of a cathode active material which are coated with a carbonaceous film, in which an amount of carbon per a crystallite diameter of the cathode active material is 0.008% by mass/nm or more and 0.050% by mass/nm or less, and a peak intensity ratio (ID/IG) between a D band and a G band in a Raman spectrum obtained by Raman spectrometry is 0.85 or more and 1.15 or less. The cathode active material is represented by LixAyDzPO4, where A represents at least one element selected from the group consisting of Co, Mn, Ni, Fe, Cu, and Cr, D represents at least one element selected from the group consisting of Mg, Ca, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, Sc, and Y, 0.9<x<1.1, 0<y?1, 0?z<1, and 0.9<y+z<1.1.

Abstract: An electrode material for a lithium ion secondary battery of the present invention is an electrode material for a lithium ion secondary battery, which comprises a mixture of an oxide-based electrode active material and a granulated body generated from primary particles, wherein the primary particles include an olivine-type electrode active material represented by General Formula LixAyDzPO4 and a carbonaceous film that coats a surface of the olivine-type electrode active material, and wherein an average particle diameter of the primary particles is 30 nm or more and 500 nm or less, an average particle diameter of the granulated body is 0.5 ?m or more and 60 ?m or less, a tensile strength ? of the granulated body is 4 MPa or more, and a brittleness of the granulated body that is defined as a ratio (?/b) of the tensile strength ? of the granulated body to a compression constant b of the granulated body is 0.2 or more.

Abstract: An electrode material for a lithium ion secondary battery of the present invention is an electrode material for a lithium ion secondary battery containing a granulated body which is generated from primary particles, wherein the primary particles include an olivine-type electrode active material and a carbonaceous film that coats a surface of the olivine-type electrode active material, in which an average particle diameter of the primary particles is 30 nm or more and 500 nm or less, an average particle diameter of the granulated body is 0.5 ?m or more and 60 ?m or less, a tensile strength ? of the granulated body is 4 MPa or more, and a brittleness of the granulated body that is defined as a ratio (?/b) of the tensile strength ? of the granulated body to a compression constant b of the granulated body is 0.2 or more.

Abstract: A cathode material for a lithium ion secondary battery enabling diffusion of lithium ions in a two-dimensional direction or a three-dimensional direction in crystals. The cathode material for the lithium ion secondary battery is formed by coating a surface of a central particle represented by General Formula LixFe1-y-zAyMzPO4 with a carbonaceous film, in which a content of a carbon atom is 0.3% by mass or more and 3.4% by mass or less, and, in a Moessbauer spectrum obtained by Moessbauer spectroscopy, when an area intensity of a spectrum having an isomer shift value in a range of 1.0 mm/sec or more and 1.4 mm/sec or less is represented by ?, and an area intensity of a spectrum having an isomer shift value in a range of 0.3 mm/sec or more and 0.7 mm/sec or less is represented by ?, {?/(?+?)×(1-y-z)} is 0.01 or more and 0.1 or less.

Abstract: A composite wavelength conversion powder and a resin composition containing a composite wavelength conversion powder which have high utilization efficiency of light and high utilization efficiency of a constituent material, and are able to make highly efficient light emission and high reliability compatible are provided. The composite wavelength conversion powder is formed by dispersing phosphor particles having a refractive index of 1.6 or more in matrix particles containing fine magnesium fluoride particles or fine calcium fluoride particles.

Abstract: A composite wavelength conversion powder and a resin composition containing a composite wavelength conversion powder which have high utilization efficiency of light and high utilization efficiency of a constituent material, and are able to make highly efficient light emission and high reliability compatible are provided. The composite wavelength conversion powder is formed by dispersing phosphor particles having a refractive index of 1.6 or more in matrix particles containing fine magnesium fluoride particles or fine calcium fluoride particles.