Abstract: The present invention relates to a cathode active material for a lithium secondary battery, and more particularly, to a cathode active material for a lithium secondary battery, which includes a core portion and a shell portion surrounding the core portion, in which a total content of cobalt in the core portion and the shell portion is 5 to 12 mol %, and the content of cobalt in the core portion and the shell portion is adjusted to be within a predetermined range. In the cathode active material precursor and the cathode active material for a secondary battery prepared using the same according to the present invention, optimal capacity of a lithium secondary battery may be increased by adjusting the cobalt content in the particles of the cathode active material, and life characteristics may be enhanced by improving stability.

Abstract: The present invention relates to a positive electrode active material which makes it possible to improve the electrochemical properties and stability of a positive electrode active material including a lithium composite oxide by adjusting the direction of a concentration gradient of a metal element of the lithium composite oxide, and a lithium secondary battery using a positive electrode including the positive electrode active material.

Abstract: A portable re-breathing apparatus is proposed. the portable re-breathing apparatus includes a mask configured to be worn on face of a user to correspond to mouth thereof and connected to a main hose through which air flows, a first oxygen mixing part connected to the main hose and through which exhalation flows, a second oxygen mixing part (200) configured to remove carbon dioxide (CO2) in the exhalation and to provide oxygen to the mask through the main hose, an air movement part connecting the first oxygen mixing part to the second oxygen mixing part (200), an oxygen supply unit including an oxygen container compress-storing oxygen and configured to supply oxygen to the second oxygen mixing part (200), and a controller (500) connected to the first and second oxygen mixing parts and the oxygen supply unit and configured to regulate CO2 and oxygen density to allow the user to breath.

Abstract: Provided is a combustible gas compressor for compressing combustible gas. The combustible gas compressor comprising: a compressor housing having an impeller rotatably disposed therein; a motor housing having a motor for driving the impeller therein; and a bearing rotatably supporting a rotational shaft transmitting rotation driving force of the motor to the impeller, wherein the compressor housing is integrally formed with the motor housing, the bearing is a self-lubricating type bearing not using lubricant oil, the self-lubricating type bearing being configured to lift the rotational shaft using gas.

Abstract: An electrochemical assembly includes a case defining an interior region, an electrochemical cell, a device, and a pressure relief valve. The electrochemical cell is disposed within the interior region. The device includes a spreader component. The spreader component includes a polymer matrix and an additive embedded in the polymer matrix. The additive includes an endothermic phase change material, a flame retardant material, an intumescent material, or any combination thereof. The device defines a device outlet. The pressure relief valve has a valve inlet fluidly connected to the interior region and a valve outlet fluidly connected to the device. The pressure relief valve is configured to transfer a gas from the interior region to the device when a pressure in the interior region exceeds a predetermined pressure. The spreader component is configured to be in fluid communication with the gas and direct the gas to the device outlet.

Abstract: A semiconductor device includes a substrate having first and second regions, first fin groups spaced along a first direction on the first region, each of the first fin groups including adjacent first and second fins having longitudinal directions in a second direction intersecting the first direction, and third to fifth fins spaced along a third direction on the second region, the third to fifth fins having longitudinal directions in a fourth direction intersecting the third direction. The third through fifth fins are at a first pitch, the first and second fins are at a second pitch equal to or smaller than the first pitch, each of the first fin groups is at a first group pitch greater than three times the first pitch and smaller than four times the first pitch, and a width of the first and second fins is same as width of the third fin.

Abstract: The present invention relates to a cathode active material for a lithium secondary battery, and more particularly, to a cathode active material for a lithium secondary battery, which includes a core portion and a shell portion surrounding the core portion, in which a total content of cobalt in the core portion and the shell portion is 5 to 12 mol %, and the content of cobalt in the core portion and the shell portion is adjusted to be within a predetermined range. In the cathode active material precursor and the cathode active material for a secondary battery prepared using the same according to the present invention, optimal capacity of a lithium secondary battery may be increased by adjusting the cobalt content in the particles of the cathode active material, and life characteristics may be enhanced by improving stability.

Abstract: A fuel cell system capable of improving the chemical durability of a membrane electrode assembly by compensating for the amount of an antioxidant lost within the electrolyte membrane or electrode of the fuel cell stack in such a manner that the antioxidant is provided from an antioxidant supply device, provided in a fuel processing system and/or an air processing system, to a fuel cell stack, in preparation for a case where the antioxidant within the electrolyte membrane or electrode is lost due to the dissolution or migration characteristic of the antioxidant.

Abstract: A transition metal compound represented by Chemical Formula 1 and a method for preparing the same, catalyst compositions including the same, and olefin-based polymers prepared from the same are disclosed herein. The transition metal catalyst has excellent structural stability together with excellent catalytic activity and can exhibit excellent copolymerizability even at a high temperature. In an embodiment, an olefin-based polymer prepared using a catalyst composition including the transition metal compound has a density of 0.91 g/cc or less.

Abstract: A linerless engine block includes a polymer matrix composite having an internal surface that defines a bore. The polymer matrix composite has a first thermal conductivity at the internal surface of at least 5 W/m·° C. The linerless engine block also includes a first bond coating disposed on the internal surface within the bore, and a second wear-resistant coating disposed on the first bond coating within the bore such that the second wear-resistant coating is adhered to the polymer matrix composite by the first bond coating. A method of forming the linerless engine block is also described.

Abstract: An automatic document feeder includes a media path to route media through the automatic document feeder, and an automated media tray to receive the media from the media path, with the automated media tray to be positioned based on input of the media to the media path.

Abstract: A display device includes: a substrate including a front surface, side surfaces extending from sides of the front surface, and a corner between the side surfaces; a first display area at the front surface and including a first pixel electrode, a first emissive layer disposed on the first pixel electrode, and a first common electrode on the first emissive layer; a second display area at the corner and including a second pixel electrode, a second emissive layer on the second pixel electrode, and a second common electrode on the second emissive layer; a first inorganic encapsulation layer on the first common electrode and the second common electrode; an organic encapsulation layer on the first inorganic encapsulation layer in the first display area; and a second inorganic encapsulation layer on the organic encapsulation layer in the first display area and on the first inorganic encapsulation layer in the second display area.

Abstract: The method includes the steps of: a) dividing a large-scale touch sensing pattern to be manufactured into multiple divisional patterns and producing multiple photomasks corresponding to the multiple divisional patterns; b) providing a substrate with a conductive layer; c) disposing a photoresist layer on the conductive layer; d) a first exposure process: forming an exposing divisional pattern and multiple first targets the photoresist layer; e) an adjacent exposure process: forming an adjacent exposing divisional pattern and multiple second targets, and adjacently connecting the adjacent exposing divisional pattern and the exposing divisional pattern originally on the photoresist layer; f) repeating the adjacent exposure process to form multiple adjacent exposing divisional patterns until a complete exposing pattern has been assembled; g) performing a developing process to the photoresist layer; and h) etching the conductive layer to form the large-scale touch sensing pattern on the conductive layer.

Abstract: A water electrolysis system includes a water electrolytic stack, a water reservoir connected to the water electrolytic stack to supply water to the water electrolytic stack, a water circulation pump supplying the water in the water reservoir to the electrolytic stack; and a control unit configured to, during an operation stoppage of the electrolysis system, control the driving of the water circulation pump to convert the water in the electrolytic stack from an acidic condition to a neutral condition and to regulate a unit cell voltage of the electrolytic stack to a voltage such that an electrolysis reaction does not occur and a chemical state of an anode catalyst is stably maintained.

Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a bimodal-type positive electrode active material that includes a first lithium composite oxide which is a small particle and a second lithium composite oxide which is a large particle, which have different average particle diameters, thereby improving an increasing deviation of an average particle diameter and degraded impedance and lifetime characteristics due to excessive calcination for any one of the small and large particles during simultaneous calcination, a positive electrode including the same, and a lithium secondary battery using the same.

Abstract: A disconnector control device and method for an electric vehicle are provided. The disconnector control device includes a disconnector that switches wheel driving manners and a processor that recognizes a driving condition of the vehicle. The processor also acquires at least one factor related to operation of the disconnector and operates the disconnector based on the acquired at least one factor.

Abstract: The present invention relates to a method of packaging character ice cream using a horizontal disposable plastic film mold as an inner packaging material. Ice cream packaging material uses a horizontal disposable plastic film mold as the inner packaging material, in which a horizontal disposable character mold for maintaining a shape of bar-type character ice cream is made by forming a plastic film in a character shape or other stereoscopic shapes. Ice cream liquid is injected into the horizontal disposable plastic film mold and then frozen, and the ice cream is packaged together with a rear reinforcement material without separating the ice cream from the horizontal disposable plastic film mold, thereby preventing a surface of the ice cream from being oxidized or preventing the character shape from being damaged.

Abstract: A turbine wheel for a turbocharger of a vehicle propulsion system includes a central hub and a plurality of blades extending outwardly from the central hub. Each of the blades defining an inducer section and an exducer section, and each of the blades including a first surface portion and a second surface portion. The first surface portion including a thermal barrier coating and the second surface portion free from the thermal barrier coating.

Abstract: Disclosed is a liquefied natural gas storage apparatus. The apparatus includes a heat insulated tank and liquefied natural gas contained in the tank. The tank has heat insulation sufficient to maintain liquefied natural gas therein such that most of the liquefied natural gas stays in liquid. The contained liquefied natural gas has a vapor pressure from about 0.3 bar to about 2 bar. The apparatus further includes a safety valve configured to release a part of liquefied natural gas contained in the tank when a vapor pressure of liquefied natural gas within the tank becomes higher than a cut-off pressure. The cut-off pressure is from about 0.3 bar to about 2 bar.

Abstract: A method for filling a reservoir of a printing device that includes conducting an unattended refill process of an internal reservoir in response to a detection of a fluid supply unit. In an example, the supply dock fluidically, electrically, and mechanically couples to the fluid supply unit to the printing device.