Abstract: A secondary battery includes a first cathode group in which first cathodes are stacked adjacent to each other, a second cathode group in which second cathodes are stacked adjacent to each other, and anodes facing the first cathode or the second cathode. Each of the first cathodes includes a first cathode current collector and a first cathode active material layer on the first cathode current collector. Each of the second cathodes includes a second cathode current collector and a second cathode active material layer on the second cathode current collector. The second cathode active material layer has a different active material composition or a different stacked structure from that of the first cathode active material layer.

Abstract: Provided is a dental blank. The dental blank includes: a seating portion provided in an artificial tooth processing apparatus; and a material portion configured to be inserted into the seating portion, wherein the material portion includes a plurality of outer contacting portions in contact with an inner side of the seating portion, and may have a polygonal shape in a cross-section.

Abstract: The present application relates to a method for manufacturing a foldable backplate film, and according to one aspect of the present invention, a method for manufacturing a foldable backplate film that the foldable backplate film is manufactured by a method of cutting it in a direction from the release film to the protective film upon half-cutting, and then release-changing the release film, whereby by improving a half-cutting process, the foldable backplate does not fall off upon the release film peeling, is provided.

Abstract: Disclosed is a separator for an electrochemical device capable of securing peel strength between a porous polymer substrate and an organic and inorganic composite porous layer and having excellent heat resistance. A manufacturing method thereof and an electrochemical device equipped with the separator are also disclosed. The separator according to one embodiment includes a porous polymer substrate and an organic and inorganic composite porous layer on at least one surface of the porous polymer substrate. The organic and inorganic composite porous layer includes inorganic particles and a particulate acrylic binder polymer, in which the particulate acrylic binder polymer has a crosslinked structure mediated by a benzophenone functional group.

Abstract: The present invention relates to a sagger for firing a precursor material, and more specifically, to a sagger having a space internally provided to load a precursor material. When used to fire a precursor material, the sagger is capable of not only suppressing the generation of by-products but also enhancing the durability of the main body.

Abstract: An upper rail device for a seat of a vehicle includes: a lower plate in which a slot is formed, a drive housing mounted on the lower plate, a drive support that passes through the slot for insertion into a curved movement path of a lower rail, a motor with a reducer mounted on an upper surface of the drive housing, a drive shaft connected to an output portion of the reducer, a drive gear mounted on a lower end portion of the drive shaft and engaged with a driven gear mounted within the curved movement path of the lower rail. The upper rail device may be fastened to enable sliding movement along the curved movement path of the lower rail so that the seat can be moved in a diagonal or oblique direction depending on various purposes, which can improve a seat position movement adjustment.

Abstract: A separator for secondary batteries including a separator substrate having a porous structure, wherein the separator substrate comprises a polymer material. A coating layer is present on at least one surface of the separator substrate, wherein the coating layer includes a crystalline binder and an amorphous binder miscible with each other. The crystalline binder includes a first crystalline binder and a second crystalline binder, and an amount of the amorphous binder is 2 weight % to 5 weight % based on the total weight of a solid content of the coating layer, whereby the resistance in the coating layer of the separator is reduced and thus ionic conductivity is improved.

Abstract: An anode for a secondary battery is provided, the anode for a secondary battery including: an anode current collector; a first anode mixture layer formed on at least one surface of the anode current collector, and including a first silicon-based active material and a first conductive material; and a second anode mixture layer formed on the first anode mixture layer, and including a second silicon-based active material and a second conductive material, wherein a content of the first silicon-based active material in the first anode mixture layer is lower than a content of the second silicon-based active material in the second anode mixture layer, and a Radial Breathing Mode (RBM) peak is observed in a Raman spectrum obtained from a surface of the second anode mixture layer.

Abstract: A manufacturing method of a bronchoscopy simulator, includes: a base part printing step in which a base part is printed by a 3D printer; a plastic dipping step in which plastic dipping is applied to the outside of the base part; a through-hole forming step in which a through-hole is formed in the base part; and a liquid passing step in which liquid passes through the through-hole to melt away only the base part while leaving the plastic dipping intact.

Abstract: A bronchoscopy simulator includes: a main body part which is formed to be similar to the bronchial tree of the human body; and a bleeding producing part which is provided on the main body part to create a situation where bleeding occurs bronchial tree inside the main body part, thereby enabling practice of a response process for bleeding situations occurring during bronchoscopy. A control method for the bronchoscope simulator, includes: a bleeding occurrence step in which bleeding occurs inside a main body part by a bleeding simulation part; and a bleeding stop step, after hemostasis responding to the bleeding is performed, in which the bleeding is stopped by the bleeding simulation part.

Abstract: Disclosed is a matte powder coating composition, and more specifically, a novel matte powder coating composition comprising a plurality of heterogeneous resins having different refractive indices, which can secure a coated film having excellent corrosion resistance and which embodies a matt effect on par with a liquid coating.