Abstract: A method for pre-lithiation of a negative electrode is disclosed, including the steps of: producing a lithium metal laminate which includes i) lithium metal foil; and ii) a buffer layer including carbonaceous material particles, inorganic compound particles, polymer compound particles or their combination, and coated on one surface of the lithium metal foil; producing a negative electrode including a negative electrode current collector, and a negative electrode active material layer formed on at least one surface of the negative electrode current collector; and laminating the lithium metal laminate with the negative electrode in such a manner that the buffer layer of the lithium metal laminate is in contact with the negative electrode active material layer. A lithium metal laminate used for the method is also provided. The pre-lithiation of a negative electrode that includes a buffer layer reduces the problem of rapid volumetric swelling occurring.

Abstract: A method of preparing a negative electrode for a lithium secondary battery, which includes forming a negative electrode mixture layer including a negative electrode active material on a negative electrode current collector, disposing lithium metal powder on at least a part of the negative electrode mixture layer, pressing the negative electrode mixture layer on which the lithium metal powder is disposed, wetting the pressed negative electrode mixture layer with a first electrolyte solution, and drying the wet negative electrode mixture layer. A battery including the negative electrode of the present invention has enhanced rapid charge/discharge characteristics and enhanced lifespan characteristics.

Abstract: The present invention relates to a carbazole-based phosphine oxide compound, and an organic electroluminescent device including the same. According to the present invention, provided are a compound for an organic electroluminescent device which can improve the thermal stability and efficiency characteristics which are unstable and low, respectively, corresponding to problems of known compounds for organic electroluminescent devices, and particularly, can implement excellent efficiency characteristics in a pure blue phosphorescent device, by using the carbazole-based phosphine oxide compound of the compound for the organic electroluminescent device, and the organic electroluminescent device. According to one aspect of the present invention, the carbazole-based phosphine oxide compound of the compound for the organic electroluminescent device is provided, and the organic electroluminescent device containing the same which can implement thermal stability and high efficiency characteristics is also provided.

Abstract: The present invention relates to a carbazole-based phosphine oxide compound, and an organic electroluminescent device including the same. According to the present invention, provided are a compound for an organic electroluminescent device which can improve the thermal stability and efficiency characteristics which are unstable and low, respectively, corresponding to problems of known compounds for organic electroluminescent devices, and particularly, can implement excellent efficiency characteristics in a pure blue phosphorescent device, by using the carbazole-based phosphine oxide compound of the compound for the organic electroluminescent device, and the organic electroluminescent device. According to one aspect of the present invention, the carbazole-based phosphine oxide compound of the compound for the organic electroluminescent device is provided, and the organic electroluminescent device containing the same which can implement thermal stability and high efficiency characteristics is also provided.

Abstract: Disclosed is a composition for producing a halogen-free flame-retardant insulating material using nano-technology. The present invention provides a composition for producing a halogen-free flame-retardant insulating material using nano-technology, including metal hydroxide treated with nanoboric acid; nano clay which is a compatibility enhancer of a base resin; a metal compound which is a flame-retardant formulation; and an antioxidant, based on the total weight of the polyolefin resin.

Abstract: Various models of engines and transmissions can be installed in an engine room model in a relatively easy manner. As a result, efficiency of inspecting the engine room is optimized by using the engine room model and various potential problems which may occur in a mass production of vehicles are discovered and can be prevented in advance.

Abstract: Various models of engines and transmissions can be installed in an engine room model in a relatively easy manner. As a result, efficiency of inspecting the engine room is optimized by using the engine room model and various potential problems which may occur in a mass production of vehicles are discovered and can be prevented in advance.

Abstract: Disclosed is an integrated digital control SYSTEM and method for an automotive electrical device. The SYSTEM comprises switch means for controlling each portion of a vehicle, the switch means including switches; switch monitor means for displaying switch functions and operational states of the switches input from the switch means; switch control means for generating pulse signals corresponding to the switches operated and controling the switch monitor means; auxiliary control means for performing input/output control, malfunction detection, automatic control, etc. of each logic-division portion; central control means for performing control of the auxiliary control means and all data; instrument panel/monitor means for performing an instrument panel stimulation and applications program graphic processing according to control by the central control means; and RPM pulse generating means for providing RPM pulses to the central control means and the auxiliary control means through an RPM pulse cable.

Abstract: An air purification device has an oxygen-supplying function, in which air in an automobile is sucked by a vacuum pump and purified by a dust collector or an adsorbent such as activated carbon and zeolite, and oxygen is enriched in air to supply oxygen enriched air into the automobile. The air purification device enriches oxygen in air according to a VSA (vacuum swing adsorption) process using a difference between pressure in the adsorption bed and atmospheric pressure, in which nitrogen adsorbed into the adsorbent is release using the vacuum pump. The air purification device has an air filter for removing impurities from air sucked from an inside of the automobile by the vacuum pump, an adsorbent for adsorbing nitrogen from air passing through the air filter and passing oxygen, and an oxygen tank for storing oxygen supplied from the adsorbent and releasing oxygen using a vacuum.

Abstract: Disclosed is an air purification device with oxygen-supplying function, in which air in an automobile is sucked by a vacuum pump and purified by a dust collector or an adsorbent such as activated carbon and zeolite, and oxygen is enriched in air to supply oxygen enriched air into the automobile. The air purification device enriches oxygen in air according to a VSA (vacuum swing adsorption) process using a difference between pressure in the adsorption bed and atmospheric pressure, in which nitrogen adsorbed into the adsorbent is released using the vacuum pump. The air purification device comprises an air filter for removing impurities from air sucked from an inside of the automobile by the vacuum pump, an adsorbent for adsorbing nitrogen from air passing through the air filter and passing oxygen, an oxygen tank for storing oxygen supplied from the adsorbent and releasing oxygen using a vacuum, and if necessary, an anion generator or a scent generator.