Abstract: A solid oxide fuel cell comprising an anode, an electrolyte, and a cathode comprising PrxCoyO3, wherein the ratio of x and y are 1:1.

Abstract: The present invention provides a conductive material for a secondary battery, and a secondary battery containing the same, the conductive material comprising carbon nanotubes, having a secondary structure in which carbon nanotube units having a diameter of 20-150 nm are entangled, having a ratio of true density to bulk density (TD/BD) of 30-120, having a metal content of 50 ppm or less, and having both excellent dispersibility and high purity, thereby being capable of improving, by increasing the conductivity within an electrode, battery performance, particularly, battery performance at room temperature and low temperature when applied to a battery.

Abstract: The present invention provides a composite conductive material having excellent dispersibility and a method for producing the same. In an embodiment, the method includes supporting a catalyst on surfaces of carbon particles; heat treating the catalyst in a helium or hydrogen atmosphere such that the catalyst penetrate the surfaces of the carbon particles and are impregnated beneath the surfaces of the carbon particles at a contact point between the carbon particles and the impregnated catalyst; and heating the carbon particles having the impregnated catalyst disposed therein in the presence of a source gas to grow carbon nanofibers from the impregnated catalyst to form a composite conductive material, wherein the source gas contains a carbon source, and wherein the carbon nanofibers extend from the contact point to above the surfaces of the carbon particles.

Abstract: Provided are a positive electrode material mixture, in which, the positive electrode material mixture includes a positive electrode active material, a conductive agent, and a binder, wherein the conductive agent includes a particulate conductive agent, a fibrous conductive agent, and a plate-shaped conductive agent, and the binder includes a crystalline binder having a weight-average molecular weight (Mw) of 500,000 g/mol to 900,000 g/mol and an amorphous binder having a weight-average molecular weight (Mw) of 200,000 g/mol to 400,000 g/mol.

Abstract: A positive electrode for a lithium secondary battery includes a positive electrode current collector; a lower positive electrode active material layer disposed on at least one surface of the positive electrode current collector; and an upper positive electrode active material layer disposed on the lower positive electrode active material layer, wherein the lower positive electrode active material layer includes 90% or more of a sphere-type carbonaceous conductive material as a conductive material, the upper positive electrode active material layer includes 90% or more of a needle-type carbonaceous conductive material as a conductive material, and the content of the conductive material contained in the lower positive electrode active material layer is larger than the content of the conductive material contained in the upper positive electrode active material layer.

Abstract: A lace tension-controlled compression sock that can be easily donned and removed and delivers the necessary amount of pressure to mitigate the effects of chronic venous disorders (CVDs) comprises easily read, graphic pressure indicators for use by the wearer when adjusting the degree of compression.

Abstract: The present invention provides a conductive material dispersed liquid including a conductive material which includes bundle-type carbon nanotubes; a dispersant which includes a hydrogenated nitrile-based rubber; and a dispersion medium, where a complex modulus (|G*| @ 1 Hz) is in a range of 20 to 500 Pa when measured by a rheometer at a frequency of 1 Hz, and a secondary battery manufactured using the same. The conductive material dispersed liquid has a controlled complex modulus to exhibit excellent dispersibility and powder resistance characteristics, and as a result, can greatly improve the output characteristics of batteries.

Abstract: A semiconductor device 100 comprising a substrate 102 having a through-substrate via hole 106, the through-substrate via hole 106 having formed therein: a first capacitor electrode layer 108a and a second capacitor electrode layer 108b, and a dielectric material layer 112 disposed between the first capacitor electrode layer 108a and the second capacitor electrode layer 108b; and a through-substrate via conductor 116. A method of forming a semiconductor device 100, the semiconductor device 100 comprising a through-substrate via hole 106, the method comprising forming, in the through-substrate via hole 106: a first capacitor electrode layer 108a and a second capacitor electrode layer 108b, and a dielectric material layer 112 disposed between the first capacitor electrode layer 108a and the second capacitor electrode layer 108b; and a through-substrate via conductor 116.

Abstract: The present invention relates to an electrode assembly for a secondary battery. The electrode assembly for the secondary battery comprises a radical unit comprising first and second electrode sheets each of which is folded so that both ends thereof overlap each other; and a first separator folded several times and having an upper folded portion into which the first electrode sheet is coupled to be fitted and a lower folded portion into which the second electrode sheet is coupled to be fitted, wherein, in the radical unit, the folded portions of the first and second electrode sheets are cut to form two first electrodes and two second electrodes, which are completely separated from each other, and the first electrode, the first separator, the second electrode, the first separator, the first electrode, the first separator, and the second electrode successively stacked.

Abstract: Provided herein are a positive electrode for a secondary battery and a secondary battery including the same. The positive electrode includes a positive electrode active material layer including a positive electrode active material, a conductive material, and a dispersant, wherein the conductive material includes bundle-type carbon nanotubes, units of which have an average strand diameter of 15 nm or less, and the positive electrode active material layer has a packing density of 3.0 g/cc or more, and has an average pore diameter of 0.1 ?m to 0.5 ?m at the packing density when a pore size distribution is measured by mercury intrusion porosimetry, and thus may exhibit excellent electrolyte wetting properties. As a result, when the positive electrode is applied to a battery, wetting time of the positive electrode is shortened, and an area of the positive electrode that is not filled with an electrolyte is reduced, resulting in enhanced battery performance.

Abstract: The present invention provides: a conductive material dispersed liquid containing a conductive material, a dispersant, and a dispersion medium, wherein the conductive material comprises bundle-type carbon nanotubes having a bulk density in a range of 10-50 kg/m3 and a conductivity satisfying the conditions of Equation 1 below, thereby exhibiting excellent dispersibility and conductivity; and a lithium secondary battery, which is manufactured using the conductive material dispersed liquid and thus can exhibit excellent battery functions, especially, excellent output characteristics at low temperatures: ?X?10 log R??0.6X??[Equation 1] (in Equation 1 above, X is a bulk density of the carbon nanotubes, and R is a powder resistance of the carbon nanotubes under a pressure of 10 to 65 MPa.).

Abstract: The present invention provides a conductive material dispersed liquid, including: a conductive material which includes bundle-type carbon nanotubes; a dispersant; a dispersion medium, where a phase angle is in a range of 3° to 18° when measured by a rheometer at a frequency of 1 Hz; and a lithium secondary battery manufactured using the conductive material dispersed liquid. The conductive material dispersed liquid has high solid-like properties, and thus allows the formation of an electrode active material layer having a uniform thickness with no concern for collapse or occurrence of cracks during manufacture of an electrode, and thereby can improve the performance characteristics, particularly capacity characteristics, of a battery.

Abstract: The present invention provides a conductive material for a secondary battery, and a secondary battery containing the same, the conductive material comprising carbon nanotubes, having a secondary structure in which carbon nanotube units having a diameter of 20-150 nm are entangled, having a ratio of true density to bulk density (TD/BD) of 30-120, having a metal content of 50 ppm or less, and having both excellent dispersibility and high purity, thereby being capable of improving, by increasing the conductivity within an electrode, battery performance, particularly, battery performance at room temperature and low temperature when applied to a battery.

Abstract: Provided are a positive electrode material mixture, in which, the positive electrode material mixture includes a positive electrode active material, a conductive agent, and a binder, wherein the conductive agent includes a particulate conductive agent, a fibrous conductive agent, and a plate-shaped conductive agent, and the binder includes a crystalline binder having a weight-average molecular weight (Mw) of 500,000 g/mol to 900,000 g/mol and an amorphous binder having a weight-average molecular weight (Mw) of 200,000 g/mol to 400,000 g/mol.

Abstract: Provided are nitrogen-doped carbon quantum dots as pyrolysis product of fumaronitrile. The carbon quantum dots may be formed in such a manner that nitrogen may be doped in an amount of 3-10 wt % based on the total weight of the carbon quantum dots with no need for a separate doping process. As a result, the carbon quantum dots have excellent properties, such as optical property, electroconductivity and thermal safety, and thus may be useful for photocatalysts or organic solar cells, or the like.

Abstract: Provided are nitrogen-doped carbon quantum dots as pyrolysis product of fumaronitrile. The carbon quantum dots may be formed in such a manner that nitrogen may be doped in an amount of 3-10 wt % based on the total weight of the carbon quantum dots with no need for a separate doping process. As a result, the carbon quantum dots have excellent properties, such as optical property, electroconductivity and thermal safety, and thus may be useful for photocatalysts or organic solar cells, or the like.

Abstract: A method of generating a 3D model from an object comprises: gathering a plurality of images of an object, and the object distance is modified to generate different images; computing the sharpness of each pixel of each image; defining each of the images being on a plane, and each of the planes corresponds to a 2D space which also corresponds to a Z-axial value; comparing the sharpness of points with the same 2D coordinate of all the planes, and picking up the plane with the most sharpness point, and then combining the 2D coordinate and the Z-axial value of the picked plane, to get a 3D coordinate; repeating the last process to get a plurality of 3D coordinate; gathering a 3D model according to the 3D coordinate. This invention is able to be achieved with the prior imaging device and the whole process of gathering a 3D model is simplified.

Abstract: A method of processing video data includes providing a bit-stream; and decoding the bit-stream. The step of decoding the bit-stream includes extracting a data portion from the bit-stream; extracting a first backup copy of the data portion from the bit-stream; and determining correct values of syntaxes in the data portion from the data portion itself and the first backup copy of the data portion. A second backup copy of the data portion may be extracted from the bit-stream and cross-examined with the data portion and the first backup copy of the data portion.

Abstract: A card connector (100) includes an insulative housing (10), a number of contacts (30) retained in the insulative housing, a metal shell (20) covering the insulative housing for defining a receiving space (60), and an ejector (50) assembled on the insulative housing. The ejector includes a cam portion (51) and a shaft (52) actuating the cam portion. The cam portion includes a pivoting portion (510), a first arm portion (511) and a second arm portion (512) respectively and angularly extending from the pivoting portion, and at least one positioning portion (513) extending from the pivoting portion along a vertical direction. At least one of the metal shell and the insulative housing defines a hole (19, 25) receiving the at least one positioning portion.

Abstract: A card connector (100) includes an insulative housing (10), a number of contacts (30) retained in the insulative housing, a metal shell (20) attached to the insulative housing for cooperatively defining a receiving space (60), and a tray (40) received in the receiving space. The metal shell includes a pair of elastic portions (24). The tray has a frame portion (41) having two lateral edges. Each lateral edge has a notch (410) securing with the corresponding elastic portion when the tray is fully inserted in the receiving space along an insertion/ejection direction and an inclined surface (414) on which the elastic portions bias to slow down ejection of the tray.