Abstract: An object of the present invention is to provide an electrode assembly for water electrolysis, in which an electrolyte membrane is kept from being deteriorated. The present invention provides an electrode structure for water electrolysis, including an anode electrode and a cathode electrode disposed to face each other, characterized in that at least one of the anode electrode and the cathode electrode includes a porous component and a reticular component in order from the facing surface side, and the standard deviation of a pressure distribution at the surface of contact between the anode electrode and the cathode electrode, determined by the following measurement method, is 2.7 MPa or less.

Abstract: A graphene dispersion liquid containing graphene dispersed in a dispersion medium is described, in which, in the graphene contained in the dispersion liquid, a proportion of graphene with a size in the plane direction of 500 nm or more and 1 ?m or less is 30% or more on an area basis, and a proportion of graphene with a size in the plane direction of 10 ?m or more and 50 ?m or less is 30% or more on an area basis. The graphene dispersion liquid is in a stable dispersion state and forms a strong conductive path.

Abstract: A secondary battery electrode is provided that may achieve a non-aqueous electrolyte secondary battery having a high energy output density with a small amount of a conductive aid. The secondary battery electrode has a mixture layer containing graphene and a secondary battery active substance. The secondary battery electrode has a mean aspect ratio of 2.0 or greater in an electric conductive material portion from a cross section of the secondary battery electrode, as specified by the method described below.

Abstract: The present invention provides a powder for forming a black light-shielding film having a specific surface area of 20 to 90 m2/g, which is measured by the BET method, comprising zirconium nitride as a main component, and containing magnesium and/or aluminum. If containing the magnesium, the content of the magnesium is 0.01 to 1.0% by mass relative to 100% by mass of the powder for forming a black light-shielding film, and if containing the aluminum, the content of the aluminum is 0.01 to 1.0% by mass relative to 100% by mass of the powder for forming the black light-shielding film.

Abstract: A zirconium nitride powder having a volume resistivity of 107 ?·cm or more in the state of the pressurized powder body hardened at a pressure of 5 MPa, and a particle size distribution D90 of 10 ?m or less when ultrasonically dispersed for 5 minutes in a state of being diluted with water or an alcohol having a carbon number of which is in a range of 2 to 5. Also, the zirconium nitride powder is dispersed in an acrylic monomer or an epoxy monomer to prepare a monomer dispersion. Further, the zirconium nitride powder is dispersed in a dispersing medium as a black pigment and further a resin is mixed to prepare a black composition.

Abstract: Provided is an electrolyte membrane including at least the following: an A-layer composed of an ion-conducting fluorinated polymer and a non-ion-conducting fluorinated polymer; and a B-layer composed of an ion-conducting hydrocarbon polymer, wherein the ion-conducting hydrocarbon polymer is dispersed in the A-layer. Provided is an electrolyte membrane having excellent oxidation resistance. In addition, provided is an electrolyte membrane for a redox-flow battery, in which the electrolyte membrane used as a barrier membrane for a redox-flow battery makes it possible to achieve high power efficiency and stable charge and discharge even in long-term use.

Abstract: A black material of the present invention consists of a zirconium nitride powder containing yttrium. The amount of the yttrium is 1.0% by mass to 12.0% by mass with respect to a total 100% by mass of the zirconium nitride powder and the yttrium. In a transmission spectrum obtained from a dispersion in which the concentration of the zirconium nitride powder containing yttrium is 50 ppm, assuming that the light transmittance at a wavelength of 550 nm is denoted by X1, and the light transmittance at a wavelength of 365 nm is denoted by X2, X1 is 7.5% or less, X2 is 25% or more, and X2/X1 is 3.5 or more.

Abstract: An assembling apparatus that has a mold in which a second unit opposes a first unit and that is configured to assemble an assembled product from a plurality of parts. The first unit includes first, second, and third movable portions, which comprise, respectively, a plurality of first forming portions, a plurality of second forming portions, and a plurality of third forming. The second unit comprises a fourth movable portion, a fourth forming portion, a fifth forming portion, a sixth forming portion, and a plurality of assembling portions. The fourth movable portion is configured to move so as to switch at least one assembling portion opposed to at least one first forming portion, at least one other assembling portion opposed to the at least one second forming portion, and at least one remaining assembling portion opposed to at least one third forming portion.

Abstract: A zirconium nitride powder which has a specific surface area of 20 to 90 m2/g as measured by a BET method, has a peak corresponding to zirconium nitride but does not have a peak corresponding to zirconium dioxide, a peak for lower zirconium oxide or a peak corresponding to lower zirconium oxynitride in an X-ray diffraction profile, and the light transmittance X at 370 nm is at least 18%, the light transmittance Y at 550 nm is 12% or less and the ratio (X/Y) of the light transmittance X at 370 nm to the light transmittance Y at 550 nm is 2.5 or more in the transmission spectra of a dispersion that contains the powder at a concentration of 50 ppm.

Abstract: High ultraviolet transmittance and high blackness can be obtained, and also has high insulating property. A zirconium nitride powder of the present invention has a volume resistivity of 107 ?·cm or more in the state of the pressurized powder body hardened at a pressure of 5 MPa, and a particle size distribution D90 of 10 ?m or less when ultrasonically dispersed for 5 minutes in a state of being diluted with water or an alcohol having a carbon number of which is in a range of 2 to 5. Also, the zirconium nitride powder is dispersed in an acrylic monomer or an epoxy monomer to prepare a monomer dispersion. Further, the zirconium nitride powder is dispersed in a dispersing medium as a black pigment and further a resin is mixed to prepare a black composition.

Abstract: An object of the present invention is to provide an electrode which can achieve both safety and a high energy density at high levels, and is used in a secondary battery such as a lithium ion secondary battery. The present invention is an electrode for secondary batteries including a positive electrode mixture layer containing, as positive electrode active materials, at least an olivine-based positive electrode active material and a layered oxide-based positive electrode active material, wherein: a total weight fraction of the positive electrode active materials in the positive electrode mixture layer is 80% by weight or more and 99% by weight or less; a weight fraction of the olivine-based positive electrode active material is 10% by weight or more and 65% by weight or less; a weight fraction of the layered oxide-based positive electrode active material is 30% by weight or more and 80% by weight or less; and the positive electrode mixture layer contains graphene.

Abstract: A graphene dispersion liquid containing graphene dispersed in a dispersion medium is described, in which, in the graphene contained in the dispersion liquid, a proportion of graphene with a size in the plane direction of 500 nm or more and 1 ?m or less is 30% or more on an area basis, and a proportion of graphene with a size in the plane direction of 10 ?m or more and 50 ?m or less is 30% or more on an area basis. The graphene dispersion liquid is in a stable dispersion state and forms a strong conductive path.

Abstract: An electrode for a secondary battery is described that is capable of realizing a secondary battery having a high output and a long lifespan using a small amount of conductive auxiliary, where the electrode for secondary battery has a mixture layer containing graphene and active material particles for a secondary battery containing at least lithium and nickel and in which an average aspect ratio of conductive material portions in a cross section of the electrode for the secondary battery is 2.0 or more.

Abstract: The present invention provides a zirconium nitride powder comprising zirconium, nitrogen, and oxygen as main components, wherein the zirconium concentration is 73 to 82% by mass, the nitrogen concentration is 7 to 12% by mass, and the oxygen concentration is 15% by mass or less; in the transmission spectra of a dispersion having a powder concentration of 50 ppm, a light transmittance X at 370 nm is at least 12% and a light transmittance Y at 550 nm is 12% or less; and the ratio (X/Y) of the light transmittance X at 370 nm to the light transmittance Y at 550 nm is at least 1.4.

Abstract: Provided is a black-film-forming mixed powder containing: (A) a zirconium nitride powder that does not contain zirconium dioxide, a low-order oxide of zirconium, or a low-order oxynitride of zirconium; and (B) a titanium nitride powder or a titanium oxynitride powder, wherein the content ratio of (A) the zirconium nitride powder and (B) the titanium nitride powder or the titanium oxynitride powder is within the range of 90:10 to 25:75 in terms of mass ratio (A:B). When the light transmittance at a wavelength of 400 nm is X, the light transmittance at a wavelength of 550 nm is Y, and the light transmittance at a wavelength of 1,000 nm is Z in a spectrum of a dispersion in which the mixed powder is dispersed in a concentration of 50 ppm, X>10%, Y<10%, Z<16%, X/Y is 1.25 or more, and Z/Y is 2.0 or less.

Abstract: An object of the present invention is to improve the electron conductivity and ion conductivity of the surface of a positive electrode active material to provide a lithium ion battery having high capacity and high output. The present invention relates to a positive electrode for a lithium ion secondary battery, including a mixture layer containing a positive electrode active material for a lithium ion secondary battery and graphene, wherein the mixture layer has a percentage of abundance of silicon composing a siloxane bond in total elements of 0.4 atomic % or more as measured by X-ray photoelectron spectroscopy.

Abstract: The present invention provides a powder for forming a black light-shielding film having a specific surface area of 20 to 90 m2/g, which is measured by the BET method, comprising zirconium nitride as a main component, and containing magnesium and/or aluminum. If containing the magnesium, the content of the magnesium is 0.01 to 1.0% by mass relative to 100% by mass of the powder for forming a black light-shielding film, and if containing the aluminum, the content of the aluminum is 0.01 to 1.0% by mass relative to 100% by mass of the powder for forming the black light-shielding film.

Abstract: A zirconium nitride powder which has a specific surface area of 20 to 90 m2/g as measured by a BET method, has a peak corresponding to zirconium nitride but does not have a peak corresponding to zirconium dioxide, a peak for lower zirconium oxide or a peak corresponding to lower zirconium oxynitride in an X-ray diffraction profile, and the light transmittance X at 370 nm is at least 18%, the light transmittance Y at 550 nm is 12% or less and the ratio (X/Y) of the light transmittance X at 370 nm to the light transmittance Y at 550 nm is 2.5 or more in the transmission spectra of a dispersion that contains the powder at a concentration of 50 ppm.

Abstract: The present invention provides a zirconium nitride powder comprising zirconium, nitrogen, and oxygen as main components, wherein the zirconium concentration is 73 to 82% by mass, the nitrogen concentration is 7 to 12% by mass, and the oxygen concentration is 15% by mass or less; in the transmission spectra of a dispersion having a powder concentration of 50 ppm, a light transmittance X at 370 nm is at least 12% and a light transmittance Y at 550 nm is 12% or less; and the ratio (X/Y) of the light transmittance X at 370 nm to the light transmittance Y at 550 nm is at least 1.4.

Abstract: A secondary battery electrode is provided that may achieve a non-aqueous electrolyte secondary battery having a high energy output density with a small amount of a conductive aid. The secondary battery electrode has a mixture layer containing graphene and a secondary battery active substance. The secondary battery electrode has a mean aspect ratio of 2.0 or greater in an electric conductive material portion from a cross section of the secondary battery electrode, as specified by the method described below.