Abstract: A method of manufacturing a separator for a lithium secondary battery having improved compression resistance is disclosed. According to one aspect of the present disclosure, there is a method of manufacturing a separator for a lithium secondary battery including the steps of coating a polymer solution prepared by dissolving a first polymer soluble in an electrolyte in a solvent to at least one surface of a porous polymer substrate having a plurality of pores, to impregnate the pores of the porous polymer substrate with the polymer solution; and coating and drying a slurry containing a second polymer non-soluble in the electrolyte, on the coated polymer solution.

Abstract: Disclosed is a wheel assembly including a main rotation part that is to be rotated about a first rotation axis, a power transmitting part that receives power from the main rotation part, and a variable rotation part that receives a rotational force from the power transmitting part to be rotated about a second rotation axis when the main rotation part is rotated, and to be moved relative to the main rotation part such that the first rotation axis and the second rotation axis overlap each other or are spaced apart from each other.

Abstract: A separator, an electrode assembly and an electrochemical device including the same are provided. The separator is used for a zigzag stacking-type electrode assembly, and includes a porous substrate made of a polymer material and a porous coating layer formed on opposite surfaces of the porous substrate and containing inorganic particles. A thickness (Ts) of the porous substrate decreases gradually from opposite ends toward a central portion based on a longitudinal direction of the separator, a total thickness (Tc) of the porous coating layers increases gradually toward the central portion, and a total thickness (Ts+Tc) of the separator is constant.

Abstract: A hair dye dispenser according to an embodiment of the present invention includes a housing having an opening hole formed on one side of which a hair dye is provided, a plurality of cartridges disposed inside the housing and accommodating at least one dyeing material, a main body in which the plurality of cartridges are rotatably disposed, a main motor for rotating the main body so that a first cartridge of the plurality of cartridges is located adjacent to the opening hole, a discharge module for discharging the dyeing material contained in the first cartridge, and an accommodating body in which a basket accommodating the dyeing material discharged by the discharge module is placed, wherein the discharge module may include an elevating body that pressurizes the first cartridge when moving up and is separated from the first cartridge when moving down.

Abstract: A lithium secondary battery separator having excellent heat resistance, adhesive strength, and insulation performance is provided. A lithium secondary battery separator according to one aspect of the present disclosure includes a porous polymer substrate, a first coating layer on a first surface of the porous polymer substrate, a second coating layer on a second surface of the porous polymer substrate, a first aqueous binder layer on a surface of the first coating layer, and a second aqueous binder layer on a surface of the second coating layer. The first coating layer and the second coating layer each include inorganic particles and a coating layer binder, in which the inorganic particles include aluminum nitride (AlN). The first aqueous binder layer and the second aqueous binder layer include different types of particle-type binders. The particle-type binder includes at least one selected from fluorine-containing binders and acrylic-containing binders.

Abstract: A multilayer electronic component includes a body including dielectric layers and internal electrodes; and an external electrode disposed on the body. The body includes a capacitance forming portion including the dielectric layers and the internal electrodes in a first direction, and a cover portion disposed on both end-surfaces of the capacitance forming portion in the first direction. One of the dielectric layers includes a first acceptor element containing Al, a second acceptor element containing at least one of Mg, Mn, or V, and Ti. The one of the dielectric layers and the cover portion include a plurality of dielectric grains, and a ratio (G1/G2) of an average size (G1) of the plurality of dielectric grains included in the one of the dielectric layers relative to an average size (G2) of the plurality of dielectric grains included in the cover portion satisfies 1.00?G1/G2<1.50.

Abstract: Disclosed is a movable object which includes a wheel assembly including a main rotary part that rotates about a first rotational axis and a variable rotary part that moves relative to the main rotary part in a direction not aligned with the first rotational axis. The variable rotary part rotates at the same angular velocity as a main angular velocity when the main rotary part rotates, the main angular velocity being an angular velocity of the main rotary part.

Abstract: This application relates to an adsorption desalination system using a multi-effect evaporator apparatus. In one aspect, the system includes a multi-effect evaporator apparatus producing high-pressure vapor and low-pressure vapor, a plurality of reaction units including an adsorbent adsorbing or desorbing moisture from the high-pressure vapor and low-pressure vapor and a heat exchange tube transferring heat to the adsorbent. The system may also include a condenser condensing vapor containing moisture desorbed from the adsorbents, and cold-hot water lines selectively supplying chilled water and hot water to the heat exchange tubes. The system may further include vapor lines connecting the multi-effect evaporator apparatus and the reaction units, and the reaction units and the condenser, respectively, valves disposed in the vapor lines, and a valve controller controlling operation of the valves to selectively supply chilled water or hot water supplied to the heat exchange tubes from the cold-hot water lines.

Abstract: The present disclosure relates to a polishing system in which accuracy and easiness of attachment and detachment of a polishing pad to a surface plate are maximized, the polishing system including: a surface plate having a polishing pad mounted on an upper portion; and the polishing pad mounted on the surface plate, in which the polishing pad includes: a polishing surface and a surface plate attachment surface that is a rear surface of the polishing surface, the surface plate attachment surface includes: at least one engraved portion, the surface plate includes at least one embossed portion, and the embossed portion and the engraved portion have a complementary coupling structure, and a method of manufacturing a semiconductor device to which the polishing system is applied.

Abstract: A lithium-sulfur battery containing a sulfur-based compound as a positive electrode active material. The lithium-sulfur battery includes: an electrode assembly including a positive electrode, a negative electrode and a separator between the positive electrode and the negative electrode; a pouch configured to receive the electrode assembly; and an electrolyte. The lithium-sulfur battery satisfies a swelling factor (SF) equal to or higher than 0 and less than 10.

Abstract: A multilayer electronic component includes a dielectric layer and internal electrodes; wherein the dielectric layer includes a rare earth element, Mn, and Ti. The rare earth element includes a first rare earth element including Dy and Tb, and a second rare earth element including a rare earth element different from the first rare earth element. The number of moles of the rare earth element is defined as RE, the number of moles of Dy is defined as A1, the number of moles of Tb is defined as A2 based on 100 moles of Ti included in the dielectric layer, and 0.5 mol?RE?0.9 mol and 1<A2/A1 are satisfied. The number of moles of the second subcomponent element based on 100 moles of Ti included in the dielectric layer is 0.2 mole or more and 0.5 mole or less.

Abstract: A multilayer electronic component includes a body including a dielectric layer and first and second internal electrodes alternately disposed in a first direction with the dielectric layer interposed therebetween, and having first and second surfaces in the first direction, third and fourth surfaces in a second direction, and fifth and sixth surfaces in a third direction; side margin portions disposed on the fifth and sixth surfaces; and external electrodes disposed on the third and fourth surfaces. Side margin portions includes BaTiO3, Zn, and Zr, an amount of Zn and an amount of Zr in the side margin portions are 0.5 mol or more and 1.0 mol or less, relative to 100 mol of Ti included in the side margin portions. The amount of Zn and the amount of Zr in the side margin portions are different from an amount of Zn and an amount of Zr in the dielectric layer.

Abstract: A dielectric ceramic composition includes a barium titanate (BaTiO3)-based base material main ingredient and an accessory ingredient, the accessory ingredient including dysprosium (Dy) and praseodymium (Pr) as first accessory ingredients. A content of the Pr satisfies 0.233 mol?Pr?0.699 mol, based on 100 mol of the barium titanate base material main ingredient.

Abstract: A multilayer electronic component according to some embodiments of the present disclosure includes: a body including a dielectric layer and an internal electrode alternately disposed with the dielectric layer; and an external electrode disposed on the body, wherein a ratio of the number of dielectric grains having a size of 100 to 250 nm included in the dielectric layer is 55% or more with respect to a total number of the dielectric grains included in the dielectric layer.

Abstract: A dielectric ceramic composition includes a barium titanate (BaTiO3)-based base material main ingredient and an accessory ingredient, the accessory ingredient including dysprosium (Dy) and praseodymium (Pr) as first accessory ingredients. A content of the Pr satisfies 0.233 mol?Pr?0.699 mol, based on 100 mol of the barium titanate base material main ingredient.

Abstract: A dielectric ceramic composition and a multilayer ceramic capacitor including the same are provided, the dielectric ceramic composition includes a BaTiO3-based base material main component and a subcomponent, wherein the subcomponent includes zinc oxide (ZnO) as a first subcomponent, and the content of the ZnO is 0.1 mol % or more and less than 0.4 mol % with respect to 100 mol % of the base material main component.

Abstract: A dielectric ceramic composition includes a barium titanate (BaTiO3)-based base material main ingredient and an accessory ingredient, the accessory ingredient including dysprosium (Dy) and praseodymium (Pr) as first accessory ingredients. A content of the Pr satisfies 0.233 mol?Pr?0.699 mol, based on 100 mol of the barium titanate base material main ingredient.

Abstract: A dielectric ceramic composition and a multilayer ceramic capacitor comprising the same are provided. The dielectric ceramic composition includes a BaTiO3-based base material main ingredient and an accessory ingredient, where the accessory ingredient includes dysprosium (Dy) and cerium (Ce) as first accessory ingredients. A total content of Dy and Ce is greater than 0.25 mol % and equal to or less than 1.0 mol % based on 100 mol % of the base material main ingredient.

Abstract: A dielectric ceramic composition and a multilayer ceramic capacitor including the same are provided, the dielectric ceramic composition includes a BaTiO3-based base material main component and a subcomponent, wherein the subcomponent includes zinc oxide (ZnO) as a first subcomponent, and the content of the ZnO is 0.1 mol % or more and less than 0.4 mol % with respect to 100 mol % of the base material main component.

Abstract: A dielectric ceramic composition and a multilayer ceramic capacitor comprising the same are provided. The dielectric ceramic composition includes a BaTiO3-based base material main ingredient and an accessory ingredient, where the accessory ingredient includes dysprosium (Dy) and cerium (Ce) as first accessory ingredients. A total content of Dy and Ce is greater than 0.25 mol % and equal to or less than 1.0 mol % based on 100 mol % of the base material main ingredient.