Abstract: An anode active material for a lithium secondary battery includes a silicon-based active material particle doped with a metal element and including pores. A porosity of the silicon-based active material particle is in a range from 0.4% to 3.5%. A lithium secondary battery includes the anode and a cathode facing the anode.

Abstract: A cathode active material for a lithium secondary battery according to an embodiment of the present disclosures a plurality of composite particles, each of which comprises a lithium metal phosphate particle, and a carbon coating formed on at least a portion of a surface of the lithium metal phosphate particle. A standard deviation of thickness values of the carbon coating measured by an X-ray photoelectron spectroscopy (XPS) for five different composite particles of the plurality of composite particles is 15 nm or less.

Abstract: A display device includes a cover window including a first surface, a display panel disposed on the first surface, and a cover panel disposed on the display panel, and including a second surface facing the cover window, and a third surface disposed on an opposite side of the second surface. The first surface and the second surface are curved surfaces, and the third surface is a flat surface.

Abstract: The cathode active material according to embodiments of the present invention includes a lithium composite oxide particle having a form of secondary particle in which a plurality of primary particle are aggregated, wherein the primary particles respectively include a lithium conduction pathway through which lithium ions are diffused. Wherein the primary particles include a first particle, and the first particle has an angle of 45° to 90° formed by a direction from a center of the first particle to a center of the lithium composite oxide particle and a direction of the lithium conduction pathway included in the first particle, wherein a ratio of the number of the first particles among the primary particles located on a surface of the lithium composite oxide particle is 20% or more.

Abstract: The cathode active material according to embodiments of the present invention includes a lithium composite oxide particle having a form of secondary particle in which a plurality of primary particle are aggregated, wherein the primary particles respectively include a lithium conduction pathway through which lithium ions are diffused. Wherein the primary particles include a first particle, and the first particle has an angle of 45° to 90° formed by a direction from a center of the first particle to a center of the lithium composite oxide particle and a direction of the lithium conduction pathway included in the first particle, wherein a ratio of the number of the first particles among the primary particles located on a surface of the lithium composite oxide particle is 20% or more.

Abstract: Cathode active materials for lithium secondary batteries and lithium secondary batteries including the cathode active materials are disclosed. In some implementations, a cathode active material for a lithium secondary battery includes a lithium metal phosphate particle having a crystallite size in a range from 150 nm to 450 nm in a direction of a crystallographic plane (020) as measured by an X-ray diffraction (XRD) analysis. In some implementations, a lithium secondary battery includes a cathode including a cathode active material layer that includes a cathode active material for a lithium secondary battery, and an anode facing the cathode. In some implementations, an electrode crystallite size ratio defined by Equation 4 is in a range from 0.5 to 0.9.

Abstract: The present invention relates to a bio-electrode having improved conductivity, flexibility and bio-compatibility, and a method of manufacturing the same. Specifically, the present invention relates to a conductive polymer bio-electrode including nano-porous permeable membrane, based on a bio-compatible polymer material having a plurality of pores and an improved surface area based on a PDMS device having a low mechanical strength and an excellent bio-compatibility, bio-signal transmission patterning, and a gold coating layer and has an excellent bio-compatibility and low rejection response while having a conductivity similar to that of a bio-electrode configured with a metal material of the related art. Therefore, the conductive polymer bio-electrode of the present invention is expected to be able to replace a bio-electrode configured with a metal material by which the bio-signal transmission efficiency is degraded due to a high bio-incompatibility.

Abstract: A semiconductor device includes a plurality of blocks on a substrate. Trenches are disposed between the plurality of blocks. Conductive patterns are formed inside the trenches. A lower end of an outermost trench among the trenches is formed at a level higher than a level of a lower end of the trench adjacent to the outermost trench. Each of the blocks includes insulating layers and gate electrodes, which are alternately and repeatedly stacked. Pillars pass through the insulating layers and the gate electrodes along a direction orthogonal to an upper surface of the substrate.

Abstract: Provided is a valve assembly for a gas vessel including: a valve body mounted at an inlet of the gas vessel and connected to a gas supply source; a connection part connected to the gas supply source on a side surface of the valve body; a check valve mounted on the connection part; and a safety valve mounted on the side surface of the valve body to discharge a fuel gas in the gas vessel to the outside when a gas pressure inside the gas vessel increases above a certain pressure or higher. The valve assembly for a gas vessel is connected to the lower end of the valve body and arranged in the gas vessel to block the gas passage when the fuel gas introduced through the valve body is charged to a set value to prevent overcharging of the fuel gas.

Abstract: Provided is a valve assembly for a gas vessel including: a valve body mounted at an inlet of the gas vessel and connected to a gas supply source; a connection part connected to the gas supply source on a side surface of the valve body; a check valve mounted on the connection part; and a safety valve mounted on the side surface of the valve body to discharge a fuel gas in the gas vessel to the outside when a gas pressure inside the gas vessel increases above a certain pressure or higher. The valve assembly for a gas vessel is connected to the lower end of the valve body and arranged in the gas vessel to block the gas passage when the fuel gas introduced through the valve body is charged to a set value to prevent overcharging of the fuel gas.

Abstract: A cathode active material for a lithium secondary battery according to an embodiment of the present disclosures a plurality of composite particles, each of which comprises a lithium metal phosphate particle, and a carbon coating formed on at least a portion of a surface of the lithium metal phosphate particle. A standard deviation of thickness values of the carbon coating measured by an X-ray photoelectron spectroscopy (XPS) for five different composite particles of the plurality of composite particles is 15 nm or less.

Abstract: An anode active material for a secondary battery according to an embodiment includes a plurality of a silicon-based active material particle being doped with a metal element and including pores. An average of porosity values measured for each of 10 different silicon-based active material particles among the plurality of the silicon-based active material particle is in a range from 0.2% to 9.0%.

Abstract: A cathode active material for a lithium secondary battery according to an embodiment includes a plurality of a lithium metal oxide particle that include a core containing a lithium iron phosphate-based compound and being doped with at least one metal element of Ti, V and Mn; and a carbon coating formed of the core. A ratio of an intensity of a peak corresponding to PO4 relative to an intensity of a D band measured by a Raman spectroscopy analysis is in a range from 0.10 to 0.33.

Abstract: Cathode active materials for lithium secondary batteries and lithium secondary batteries including the cathode active materials are disclosed. In some implementations, a cathode active material for a lithium secondary battery includes a lithium metal phosphate particle having a crystallite size in a range from 150 nm to 450 nm in a direction of a crystallographic plane (020) as measured by an X-ray diffraction (XRD) analysis. In some implementations, a lithium secondary battery includes a cathode including a cathode active material layer that includes a cathode active material for a lithium secondary battery, and an anode facing the cathode. In some implementations, an electrode crystallite size ratio defined by Equation 4 is in a range from 0.5 to 0.9.

Abstract: The present invention performs a reference point detecting step (S20) to select a reference point by performing pattern analysis based on a characteristic pattern shown in a total leakage current (IT) when an applied voltage is 0V, a resistive leakage current calculating step (S30) to calculate a resistive leakage current by Fourier series-expanding the total leakage current (IT) starting at the reference point, and reference point verifying/correcting steps (S40 and S41) to correct the reference point until a characteristic pattern of the resistive leakage current (IR) according to non-linear resistance characteristics of the surge arrester (1) is shown so that the resistive leakage current (IR) is recalculated, and the present invention determines that the resistive leakage current (IR) calculated based on the completely corrected reference point is the resistive leakage current of the surge arrester (1).

Abstract: Provided is a method of controlling local release of target compounds by patterning a hydrogel carrying a bone morphogenetic protein or anticancer drug as the target compounds onto an electrospun nanoporous membrane. The hydrogel is capable of controlling local release of the bone morphogenetic protein or anticancer drug as a carrier of the bone morphogenetic protein or anticancer. And the electrospun nanoporous membrane performs a basic function of the membrane of preventing infiltration of connective tissue. Thus, there is an advantage in that the hydrogel patterned nanoporous membrane can facilitate generation of controlled bone in a local region and degradation of cancer in a local region.

Abstract: The present invention relates to a device and method for detecting a surge arrester resistive leakage current for reducing the computational load, which may significantly reduce the computational load as the Fourier transform process need not be repeated in the process of searching to match a section to be Fourier transformed to a section in-phase with AC voltage to extract the resistive leakage current component from the Fourier series of surge arrester leakage current and enables real-time detection of the resistive leakage current by shortening the section searching process of one-period leakage current by searching for the section of one-period leakage current, which is to be initially Fourier-transformed, based on the characteristic pattern that it is repeatedly generated by application of an AC voltage.

Abstract: A semiconductor device includes a plurality of blocks on a substrate. Trenches are disposed between the plurality of blocks. Conductive patterns are formed inside the trenches. A lower end of an outermost trench among the trenches is formed at a level higher than a level of a lower end of the trench adjacent to the outermost trench. Each of the blocks includes insulating layers and gate electrodes, which are alternately and repeatedly stacked. Pillars pass through the insulating layers and the gate electrodes along a direction orthogonal to an upper surface of the substrate.

Abstract: The present invention relates to resistive leakage current in a surge arrester that measures not voltage but leakage current alone in the surge arrester to obtain a resistive leakage current included in the leakage current so as to compensate for shortcomings in conventional metal-oxide surge arresters.

Abstract: A display panel includes a base substrate. A semiconductor layer is disposed on the base substrate. A source electrode and a drain electrode are disposed on the semiconductor layer. A first insulating layer is disposed on both the source electrode and the drain electrode. A data line is disposed on the first insulating layer. The data line is electrically connected to the source electrode via a contact hole penetrating through the first insulating layer.