Abstract: The present technology relates to a positive electrode additive for a lithium secondary battery and a positive electrode for a lithium secondary battery including the same, wherein the positive electrode additive contains a carbon material on a surface of a lithium cobalt oxide represented by Chemical Formula 1 to improve the low electrical conductivity of the positive electrode additive, and an effect of improving the problem caused by the amount of gases generated during initial charging and discharging (i.e., “activation”) is excellent, and thus a positive electrode and lithium secondary battery including the positive electrode additive have excellent electrical performance.

Abstract: The disclosure provides an electronic apparatus. The electronic apparatus includes a substrate, a first metal layer, an insulating layer, a first conductor, an electronic assembly and a transistor circuit die. The first metal layer is disposed on the substrate. The insulating layer is disposed on the substrate. The first conductor is formed in a first via of the insulating layer. The electronic assembly is disposed on the substrate and electrically connected to the first metal layer through the first conductor. The transistor circuit die is electrically connected to the first metal layer.

Abstract: A positive electrode active material, a lithium secondary battery including the same, and a method of making the same are disclosed herein. In some embodiments, a positive electrode active material includes secondary particles, each secondary particle comprising an agglomerate of primary macro particles, wherein an average particle size (D50) of the primary macro particles is 1.5 ?m or more, wherein a part of a surface of each secondary particle is coated with a cobalt compound and an aluminum compound, an average particle size (D50) of the secondary particles is 3 to 10 ?m, and wherein the primary macro particles comprises a nickel-based lithium transition metal oxide. It is possible to improve the electrical and chemical properties by partial coating of the secondary particles with cobalt and aluminum on the surface. It is possible to provide a nickel-based positive electrode active material with improved stability at high temperature and high voltage.

Abstract: The present disclosure relates to aA negative electrode for a lithium secondary battery and a lithium secondary battery including the same, wherein the negative electrode includes a negative electrode active material which contains a carbon material and a silicon material, contains Si in a specific content, and has a form and/or structure in which the size of each material is controlled so that it is possible to improve the charging/discharging capacity and efficiency of the negative electrode, suppress the side reaction between the negative electrode active material and the electrolyte during the charging and discharging while solving a problem of the negative electrode mixture layer peeling due to the expansion and contraction of the negative electrode active material.

Abstract: A spectacle lens can inhibit ametropia of the eyes and ensure full visibility. The spectacle lens comprises: first refraction areas and second refraction areas. Each first refraction area has a first refraction force that may be based on a prescription for correcting the ametropia of the eyes. Each second refraction area has a refraction force different from the first refraction force and may function to focus images on the positions except the retina of the eyes, to inhibit the development of the ametropia. Near the central part of the lens, the second refraction areas form a plurality of independent island-shaped areas, and the first refraction areas form the areas beyond the areas of the second refraction areas.

Abstract: An electrode assembly for a lithium secondary battery and a positive electrode for the lithium secondary battery including the electrode assembly. By controlling a ratio (CRLip/CRSi) between a content percentage of a positive electrode additive and a silicon (Si)-containing material that is a negative electrode active material, which are contained in a positive electrode mixture layer and a negative electrode mixture layer, respectively, to a specific range, the electrode assembly has an advantage in that high charging/discharging capacity and charging/discharging efficiency can be realized during initial charging/discharging, a capacity retention rate can be excellent during subsequent charging/discharging, and a lithium secondary battery including the electrode assembly can exhibit a high energy density and long lifetime.

Abstract: A solid electrolyte film for sulfide-based all-solid-state batteries, and more particularly a composition of a solid electrolyte, a binder, and a solvent used to manufacture a solid electrolyte film for sulfide-based all-solid-state batteries that is thin and has high ion conductivity. In particular, a solid electrolyte film composition for sulfide-based all-solid-state batteries including a solvent having a dielectric constant of x (1.5<x<3.0). The thickness of a solid electrolyte film for sulfide-based all-solid-state batteries manufactured using the solid electrolyte film composition is 60 µm or less, and the solid electrolyte film is capable of being stably used for at least 1000 hours or more, and up to 2000 hours, based on the evaluation of Li plating and stripping.

Abstract: A master batch for a positive electrode additive and a positive electrode slurry for a lithium secondary battery that contains the same, wherein the master batch contains a high content of irreversible additive together with a positive electrode active material so that a small amount of irreversible additive is dispersed in the positive electrode slurry with high dispersion without loss when a positive electrode is manufactured, and thus a positive electrode for a lithium secondary battery manufactured using the irreversible additive has high electrical properties and reliability, and a degree of freedom in design is improved when the positive electrode is manufactured.

Abstract: Provided are a sacrificial positive electrode material with a reduced gas generation amount and a method of preparing the same. The method includes calcinating a raw material mixture of lithium oxide (Li2O) and cobalt oxide (CoO) to prepare a lithium cobalt metal oxide, wherein the lithium oxide (Li2O) has an average particle size (D50) of 50 µm or less, and the resulting sacrificial positive electrode material has an electrical conductivity of 1 × 10-4 S/cm or more. The method of preparing a sacrificial positive electrode material can reduce the generation of gas, particularly, oxygen (O2) gas, in an electrode assembly during charging of a battery by adjusting the electrical conductivity of the sacrificial positive electrode material within a specific range using lithium oxide that satisfies a specific size, and thus the stability and lifespan of the battery including the same can be effectively enhanced.

Abstract: Provided is a positive electrode for a lithium secondary battery and a lithium secondary battery including the same, and the positive electrode contains a positive electrode additive represented by Formula 1 and a positive electrode mixture layer including a region with a needle-shaped crack structure in its cross-section after initial charging (activation), so an amount of gas such as oxygen generated by an irreversible additive, which is a positive electrode additive, during the subsequent charging/discharging is reduced, and the migration path of lithium ions and/or electrons is able to be ensured. Therefore, an excellent effect of improving the battery safety and electrical performance of a lithium secondary battery is exhibited.

Abstract: Provided is a lithium secondary battery comprising an electrolyte and an electrode assembly, wherein the electrode assembly comprises a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The positive electrode comprises a positive electrode current collector and a positive electrode mixture layer positioned on the positive electrode current collector, wherein the positive electrode mixture layer comprises a positive electrode active material, a positive electrode additive represented by Chemical Formula 1 (LipCo(1-q)M1qO4), a conductive material, and a binder. The lithium secondary battery satisfies Expression 1 (ALCO/A0) with 2.0 or more and 20.0 or less after charging to a state of charge (SoC) of 100% in an activation process under conditions of a voltage of 3.5 V to 4.5 V and a current of 0.1 to 0.5 C.

Abstract: A secondary particle precursor, a positive electrode active material and a lithium secondary battery prepared from the same, and a method of preparing the same are disclosed herein. In some embodiments, a secondary particle precursor comprises one or more particles having a core and a shell surrounding the core, wherein a particle size (D50) of the secondary particle precursor is 6±2 ?m, a particle size (D50) of the core is 1 to 5 ?m, and the core has higher porosity than the shell. A positive electrode active material prepared using the secondary particle precursor has an increased press density and reduced cracking.

Abstract: An immersion cooling system includes a fluid-retaining container having space for accommodating an electronic device. A heat transfer fluid is in contact with the electronic device. A heat exchanger contacts and condenses vapor from vaporization of the heat transfer fluid. The heat transfer fluid has a thermal conductivity higher than 0.08 W m?1K?1, a dielectric constant (Dk) 20-40 GHz less than 3.0, and a heat of vaporization higher than 150 kJ kg?1, with fire retarding features, compatibility with plastics, metals, rubbers and includes a partially fluorinated compound. The improved immersion cooling system includes fluids with increased thermal conductivity and heat of vaporization while reducing fluid density and maintaining the advantages of the fluid being non-flammable, having high electrical stability and a low dielectric constant.

Abstract: The present disclosure relates to a coronavirus-specific double-stranded oligonucleotide and a use thereof. The present disclosure induces RNA interference specific to a coronavirus, particularly, to SARS-CoV, SARS-CoV-2, and a mutant thereof so as to effectively inhibit viral infection and proliferation, and is nearly unaffected by viral variants since a conserved sequence is mainly targeted. Therefore, the double-stranded oligonucleotide of the present disclosure may be effectively used in proliferation inhibition, infection prevention, and disease treatment of the coronavirus, and particularly, may be effectively used as an agent for preventing and treating COVID-19, which is the cause of the current pandemic.

Abstract: In some aspects, the disclosure is directed to methods and systems for a flexible type-length-value (TLV) parser and identification map that may be used to quickly identify TLV sequences of packet headers for subsequent processing in a pipeline. A flexible TLV bus may provide a secondary path for the TLV header and identification map, allowing for subsequent processing stages to read, process, modify, delete, or otherwise utilize individual TLV sequences within the header.

Abstract: An electronic device is provided. The electronic device includes a substrate, a conductive layer, an insulating layer, and a modulating material. The conductive layer is disposed on the substrate and has a first opening penetrating through the conductive layer. The insulating layer is disposed on the conductive layer and includes a second opening penetrating through the insulating layer. The first opening of the conductive layer and the second opening of the insulating layer are at least partially overlapped. The modulating material is disposed on the insulating layer.

Abstract: A technology for inhibition of myopia progression adapted to the RPR of the wearer is provided. A spectacle lens and related technology are provided that include a base area that causes a beam that enters through an object-side surface to exit through an eye-side surface and converge on a retina via the eye, and a plurality of defocus areas that each contact the base area and have a characteristic whereby a beam that passes through at least a portion of the defocus area is incident on the retina as a diverging ray, and, in not less than half of the plurality of defocus areas, at least one of a defocus power and a size of each defocus area is set, so as to compensate for a change in retinal spot size due to relative peripheral refraction (RPR) that depends on an eccentricity angle of the eye of the wearer.

Abstract: Provided is a positive electrode slurry for a positive electrode for a lithium secondary battery, which is manufactured using the same. The positive electrode slurry is composed of a two-liquid type composition, contains the positive electrode additive represented by Chemical Formula 1 (LipCo(1-q)M1qO4), which is used as an irreversible additive, in a large amount, and contains the first liquid whose viscosity is adjusted within a specific range (i.e. 5,000 to 8,000 cps). Thus, not only is there an advantage in that the dispersibility and workability of the positive electrode additive are excellent, but also since it is possible to suppress side reactions while minimizing the loss of the positive electrode additive contained in the positive electrode slurry, the state stability of the positive electrode slurry can be improved, and thus the electrical properties of the positive electrode manufactured using the positive electrode slurry are excellent.

Abstract: The present invention relates to a humanized antibody specific to a Bacillus anthracis protective antigen and a preparation method thereof. An antibody library is created by obtaining a Bacillus anthracis protective antigen antibody of a monkey from immune cells obtained by immunizing a Bacillus anthracis protective antigen, an antibody specific to the Bacillus anthracis protective antigen is selected from the created antibody library, and, on the basis of the antibody, a humanized antibody specific to the Bacillus anthracis protective antigen is finally selected by creating a humanized antibody library against a Bacillus anthracis protective antigen.

Abstract: Provided herein are a series of water-soluble photochromic naphthopyran compounds, a mixture and a polymer thin film comprising the same, and applications thereof in photochromic materials, especially water-soluble photochromic material. The present photochromic naphthopyran compounds display excellent water solubility in neutral pH environment, rapid light response and fast thermal bleaching.