Abstract: The technology and implementations disclosed in this patent document generally relate to a lithium secondary battery including: a first unit cell including a first anode including a 1-1 anode mixture layer and a 1-2 anode mixture layer on the 1-1 anode mixture layer, and a second unit cell including a second anode including a 2-1 anode mixture layer and a 2-2 anode mixture layer on the 2-1 anode mixture layer, wherein a weight ratio of the silicon-based active material in the 1-2 anode mixture layer is greater than a weight ratio of the silicon-based active material in the 1-1 anode mixture layer, and a weight ratio of the silicon-based active material in the 2-2 anode mixture layer is less than or equal to a weight ratio of the silicon-based active material in the 2-1 anode mixture layer.

Abstract: The present invention relates to an electrolyte solution and a secondary battery including the same. According to the present invention, the present invention has an effect of providing a secondary battery having improved charging efficiency and output due to low discharge resistance and having a long lifespan and excellent high-temperature capacity retention by suppressing gas generation and increase in thickness.

Abstract: An anode for a lithium secondary battery includes an anode current collector, and an anode active material layer formed on at least one surface of the anode current collector. The anode active material layer includes a carbon-based active material, a first silicon-based active material doped with magnesium and a second silicon-based active material not doped with magnesium. A content of the first silicon-based active material is in a range from 2 wt % to 20 wt % based on a total weight of the anode active material layer.

Abstract: In some implementations, the anode includes a current collector, a first anode mixture layer formed on at least one surface of the current collector, and a second anode mixture layer formed on the first anode mixture layer. The first anode mixture layer and the second anode mixture layer include a carbon-based active material, respectively. The first anode mixture layer includes a first binder, a first silicon-based active material, and a first conductive material. The second anode mixture layer includes a second binder, a second silicon-based active material, and a second conductive material. Contents of the first conductive material and the second conductive material are different from each other with respect to the total combined weight of the first anode mixture layer and the second anode mixture layer. Types of the first silicon-based active material and the second silicon-based active material are different from each other.

Abstract: A core-shell copolymer, a method of making the same, and a thermoplastic resin composition including the same are disclosed herein. In some embodiments, a core-shell copolymer includes a core and a shell surrounding the core, the core includes a conjugated diene-based monomer-derived repeating unit and a phosphate-based cross-linking agent-derived cross-linking part represented by Formula 1, and the shell includes a first alkyl (meth)acrylate monomer-derived repeating unit, a second alkyl (meth)acrylate monomer-derived repeating unit, and a sulfonate-based ionic monomer-derived repeating unit represented by Formula 2. The core is 68 parts to 92 parts and the shell is 8 parts to 32 parts, based on 100 parts of the core-shell copolymer, the core has a swell index of 2.7 to 10.9, the shell includes 1 wt % to 16 wt % of the sulfonate-based ionic monomer-derived repeating unit, and the shell has a weight average molecular weight of 105,000 g/mol to 645,000 g/mol.

Abstract: Provided is a steel sheet that may be used for automobile parts and the like, and to a steel sheet having an excellent balance of strength and ductility, an excellent balance of strength and hole expansion ratio, and an excellent yield ratio evaluation index, and a method for manufacturing the same. The steel sheet includes: by wt %, C: 0.1 to 0.25%, Si: 0.01 to 1.5%, Mn: 1.0 to 4.0%, Al: 0.01 to 1.5%, P: 0.15% or less, S: 0.03% or less, N: 0.03% or less, B: 0.0005 to 0.005%, a balance of Fe, and unavoidable impurities; and as microstructures, bainite, tempered martensite, fresh martensite, retained austenite and unavoidable structures.

Abstract: Provided is a plated steel sheet having excellent surface quality, as well as having excellent formability while also having high strength characteristics; and a method for manufacturing same. The plated steel sheet includes: base iron; and a plating layer provided on at least one surface of the base iron. The base iron includes by weight: 0.002 to 0.01% of carbon (C), 0.1% or less of silicon (Si), 0.4 to 1.0% of manganese (Mn), 0.04 to 0.1% of phosphorus (P), 0.01% or less of sulfur (S), 0.005% or less of nitrogen (N), 0.1% or less of aluminum (S·Al), 0.005 to 0.03% of titanium (Ti), 0.01 to 0.05% of niobium (Nb), 0.06 to 0.1% of copper (Cu), 0.0015% or less of boron (B), a content of molybdenum (Mo). The base iron includes ferrite as a matrix structure.

Abstract: Provided is a steel sheet which can be used for automobile parts and the like, and relates to a steel sheet and a method for manufacturing same, the steel sheet having an excellent balance between strength and ductility, an excellent balance between strength and hole expansion properties, and an excellent yield ratio evaluation score. The steel sheet includes: by wt %, C: 0.1 to 0.25%, Si: 0.01 to 1.5%, Mn: 1.0 to 4.0%, Al: 0.01 to 1.5%, P: 0.15% or less, S: 0.03% or less, N: 0.03% or less, B: 0.0005 to 0.005%, a balance of Fe, and unavoidable impurities; and as microstructures, bainite, tempered martensite, fresh martensite, retained austenite and unavoidable structures.

Abstract: Disclosed are an apparatus for automatically measuring urine volume and a system for automatically measuring urine volume. The apparatus for automatically measuring urine volume of the present disclosure includes a urine container to which a urine catheter is connected, wherein an insertion hole is formed in an upper portion of the urine container, a hollow tube inserted into the insertion hole in a gravity direction, a floating body inserted into the hollow tube so as to move up and down and having buoyancy to float on the urine, and a distance sensor provided at an upper portion of the hollow tube so as to measure a distance to the floating body, wherein the volume of urine in the urine container is measured by using a measurement of the distance sensor.

Abstract: Provided is a high-strength steel sheet and a method for manufacturing same, wherein the high-strength steel sheet is a material suitable for automobile structural members and has excellent moldability, such as hole expandability, through the improvement of ductility, while having a low yield ratio and high strength.

Abstract: An aspect of the present invention relates to a high strength steel sheet having an excellent high-temperature elongation characteristic, wherein the sheet comprises, by weight %, 0.4-0.9% of C, 0.01-1.5% of Cr, 0.03% or less (exclusive of 0%) of P, 0.01% or less (exclusive of 0%) of S, 0.01% or less (exclusive of 0%) of N, 0.01% or less (exclusive of 0%) of sol. Al, and a balance of Fe and inevitable impurities, and comprises at least one among 2.1% or less (exclusive of 0%) of Mn and 1.6% or less (exclusive of 0%) of Si; the sheet has a microcrystalline structure including pearlite having an area fraction of 80% or more and ferrite having an area fraction of 20% or less; and the pearlite includes cementite having a major axis length of 200 nm or shorter.

Abstract: Provided is a high-strength steel sheet suitable for automobile structural members, etc., and a method for manufacturing same, wherein the high-strength steel sheet has a low yield ratio and high strength and has excellent formability through improvement of ductility that may prevent processing defects such as cracks, wrinkles, or the like, during press forming.

Abstract: Provided is a high strength steel sheet having an excellent high-temperature elongation characteristic. The sheet includes, by weight %, 0.4-0.9% of C, 0.01-1.5% of Cr, 0.03% or less (exclusive of 0%) of P, 0.01% or less (exclusive of 0%) of S, 0.01% or less (exclusive of 0%) of N, 0.01% or less (exclusive of 0%) of sol. Al, and a balance of Fe and inevitable impurities, and comprises at least one among 2.1% or less (exclusive of 0%) of Mn and 1.6% or less (exclusive of 0%) of Si; the sheet has a microcrystalline structure including pearlite having an area fraction of 80% or more and ferrite having an area fraction of 20% or less; and the pearlite includes cementite having a major axis length of 200 nm or shorter.

Abstract: Provided is a steel sheet by weight percentage (wt %), carbon (C): 0.005 to 0.08%, manganese (Mn): 1.25% or less (excluding 0%), phosphorus (P): 0.03% or less (excluding 0%), sulfur (S): 0.01% or less (excluding 0%), nitrogen (N): 0.01% or less (excluding 0%), soluble aluminum (sol.Al): 0.01 to 0.06%, chromium (Cr): 1.15 to 2.5%, antimony (Sb): 0.1% or less (excluding 0%), at least one selected from the group consisting of nickel (Ni): 0.3% or less (excluding 0%), silicon (Si): 0.3% or less (excluding 0%), molybdenum (Mo): 0.2% or less (excluding 0%), and boron (B): 0.003% or less (excluding 0%), and a remainder of iron (Fe) and other unavoidable impurities, satisfying Expression 1: 1.3?Mn(wt %)+Cr(wt %)/1.5+Sb(wt %)?2.7, where Mn, Cr, and Sb refer to contents (wt %) of corresponding elements, respectively; and 1 to 5% of martensite and a remainder of ferrite by an area percentage (area %).

Abstract: Provided is a steel sheet used as a material for an automotive exterior panel, etc., and a method for manufacturing the same. More particularly, provided is a cold-rolled steel sheet and a hot-dip galvanized steel sheet, which have excellent bake hardening properties, corrosion resistance, and anti-aging properties, and a method for manufacturing the same.

Abstract: Provided is a steel sheet and a method for manufacturing same, the steel sheet, which is optimized a composition and microstructure, and which can be used for automobile parts and the like, having superb bendability, and superior balance of strength and ductility and of strength and hole expansion ratio.

Abstract: Provided is a steel sheet which can be used for automobile parts and the like, and relates to a steel sheet having a superior balance of strength and ductility and strength and a hole expansion ratio and superior bending formability, and a method for manufacturing same.

Abstract: A high strength steel sheet including, by weight, C: 0.001% to 0.004%, Si: 0.5% or less (excluding 0%), Mn: 1.2% or less (excluding 0%), P: 0.005% to 0.12%, S: 0.01% or less, N: 0.01% or less, acid soluble Al: 0.1% or less (excluding 0%), Ti: 0.01% to 0.04%, a remainder of Fe, and unavoidable impurities, wherein the contents of Ti, N, and S satisfy the following Relationship 1, a ratio (b/a) of an average random intensity ratio (b) of an orientation group of (111) [1-10] to (111) [?1-12] to an average random intensity ratio (a) of an orientation group of (001) [1-10] to (110) [1-10] at a point t/4 (where t is a thickness of the steel sheet) in a thickness direction of the steel sheet is 2.3 or more, and a bake hardenability (BH) of the steel sheet is 4 MPa or more.

Abstract: Provided is a steel sheet used as a material for an automotive exterior panel, etc., and a method for manufacturing the same. More particularly, provided is a cold-rolled steel sheet and a hot-dip galvanized steel sheet, which have excellent bake hardening properties, plating adhesion, and anti-aging properties, and a method of manufacturing the same.

Abstract: The present disclosure relates to a razor having a coupling structure of a razor blade cartridge and a handle, including a razor blade cartridge including at least one razor blade, a blade housing in which the at least one razor blade is accommodated, a cartridge frame coupled to the blade housing and configured to secure the at least one razor blade to the blade housing; and a handle coupled to a rear of the razor blade cartridge, wherein a first hook is formed at a rear of the blade housing; a second hook is formed at a rear of the cartridge frame; and the handle is configured to be engaged with the first hook and the second hook such that the handle is coupled to the rear of the razor blade cartridge.