Abstract: A semiconductor memory device includes a third insulating pattern and a first insulating pattern on a substrate, the third insulating pattern and the first insulating pattern being spaced apart from each other in a first direction that is perpendicular to the substrate such that a bottom surface of the third insulating pattern and a top surface of the first insulating pattern face each other, a gate electrode between the bottom surface of the third insulating pattern and the top surface of the first insulating pattern, and including a first side extending between the bottom surface of the third insulating pattern and the top surface of the first insulating pattern, and a second insulating pattern that protrudes from the first side of the gate electrode by a second width in a second direction, the second direction being different from the first direction.

Abstract: Provided is a secondary battery which includes an electrode assembly having an electrode tab extended from an electrode current collector, wherein the electrode tab is provided with an insulation coating layer containing an inorganic filler and a binder, the binder has an electrolyte uptake more than 0% and less than 50%, and the electrolyte uptake is determined by a predetermined method. In the secondary battery according to the present disclosure, the insulation coating layer provided in the electrode tab includes a binder having a low electrolyte uptake, and thus the insulation coating layer has improved adhesion and is prevented from detachment from the electrode tab. As a result, it is possible to maintain an excellent insulation state and to minimize an internal short-circuit in a secondary battery, thereby ensuring safety.

Abstract: An apparatus for manufacturing a secondary battery is provided. The apparatus comprises a separation sheet supply device configured to supply two separation sheets configured to be disposed vertically. An electrode supply device is configured to supply electrodes to be disposed between the two separation sheets and on a top surface of one of the separation sheets. The one of the separation sheets is disposed at an upper side. A lamination device is configured to bond the two separation sheets and the electrodes to each other. An ultrasonic cutting device is configured to bond surfaces of the two separation sheets to each other and simultaneously cut a bonding surface of the two separation sheets.

Abstract: An electrode assembly manufacturing apparatus includes an electrode sheet supply unit for supplying an electrode sheet on which electrode mixture coating and non-coating portions are formed, a cutting unit at the rear of the supply unit for forming an electrode tab at the electrode sheet, and a lamination unit at the rear of the supply unit and configured to laminate positive and negative electrodes stacked with a separator between them. A cutting unit die supports the electrode sheet and an ultrasonic cutter spaced from the die forms the tab. A cutting line of a cutting edge of the cutter corresponds to a periphery of a unit electrode in a tab forming direction. The cutting and lamination units are on the same line in a continuous process to reduce a necessary space for electrode assembly manufacture and prevent electrode sheet foil deformation and electrode mixture layer damage in the cut section.

Abstract: Provided is a secondary battery which includes an electrode assembly having an electrode tab extended from an electrode current collector, wherein the electrode tab is provided with an insulation coating layer containing an inorganic filler and a binder, the binder has an electrolyte uptake more than 0% and less than 50%, and the electrolyte uptake is determined by a predetermined method. In the secondary battery according to the present disclosure, the insulation coating layer provided in the electrode tab includes a binder having a low electrolyte uptake, and thus the insulation coating layer has improved adhesion and is prevented from detachment from the electrode tab. As a result, it is possible to maintain an excellent insulation state and to minimize an internal short-circuit in a secondary battery, thereby ensuring safety.

Abstract: The electrode drying device for drying moisture in electrodes includes a chamber section; a stacking section in which at least one electrode is configured to be arranged separately from each other; a first heater unit located adjacent to the stacking section; and a circulation unit for circulating heat inside the chamber section.

Abstract: The present invention provides a sealing process for a secondary battery of the present invention, which thermally fuses and seals a sealing portion that extends along an edge surface of a battery case, the sealing process comprising: an arrangement operation of disposing the sealing portion of the battery case between an anvil and a horn; a first region-fixing operation of pressing and fixing a first region of the sealing portion through the anvil and the horn; and a first region-primary sealing operation of applying an ultrasonic wave to the first region of the sealing portion through the horn at a set frequency and a set amplitude for a set time, thereby thermally fusing the first region of the sealing portion.

Abstract: An electrode assembly having a jelly-roll type structure in which a first electrode current collector, a second electrode current collector, and a separator located between the first electrode current collector and the second electrode current collector are wound in one direction. At least one of the first electrode current collector or the second electrode current collector includes an uncoated portion exposed to outside of the separator. A cutting line is provided in the axial direction of the electrode assembly in the at least one of the uncoated portion. The uncoated portion in which the cutting line is provided is divided into a remaining area remaining to protrude in a winding axis direction and a bent target area bent in a preset direction. At least a part of the uncoated portion included in the bent target area is bent to have a plurality of layers overlapping in a bending direction.

Abstract: The present technology relates to a method of inspecting a welding defect. The method includes: manufacturing an electrode assembly sample by welding an electrode lead on an electrode tab formed on an electrode assembly; measuring a tensile strength, a torsional strength and a peeling strength of a welded portion between the electrode tab and the electrode lead for the electrode assembly sample; deriving correlation between whether there is a welding defect and each of the tensile strength, the torsional strength, and the peeling strength; and deriving a reference value for determining whether there is a welding defect for the tensile strength, the torsional strength, and the peeling strength, respectively.

Abstract: An apparatus for manufacturing an electrode assembly includes a separator supply unit, table, separator guide, first adhesive supply unit, and pair of tensioners. The separator supply unit is configured for supplying a separator sheet from which a separator is formed. The table is configured for supporting electrodes and sections of the separator sheet. The separator guide is configured for guiding the separator sheet to fold in a particular folding direction. The first adhesive supply unit is configured for applying an adhesive to portions of the separator sheet and the electrodes supported by the table. The pair of tensioners are each configured for pressing an uppermost section of the separator sheet guided by the separator guide against the table or against a placed electrode that directly underlies the uppermost section. The electrode assembly is manufactured by a process using the apparatus.

Abstract: Disclosed is a case for secondary batteries including a laminate sheet composed of multiple layers, the laminate sheet including an insulating layer having an elongation percentage of 10% or more.

Abstract: Provided is a secondary battery which includes an electrode assembly having an electrode tab extended from an electrode current collector, wherein the electrode tab is provided with an insulation coating layer containing an inorganic filler and a binder, the binder has an electrolyte uptake more than 0% and less than 50%, and the electrolyte uptake is determined by a predetermined method. In the secondary battery according to the present disclosure, the insulation coating layer provided in the electrode tab includes a binder having a low electrolyte uptake, and thus the insulation coating layer has improved adhesion and is prevented from detachment from the electrode tab. As a result, it is possible to maintain an excellent insulation state and to minimize an internal short-circuit in a secondary battery, thereby ensuring safety.

Abstract: The present invention relates to a phosphonium-based compound represented by chemical formula 1, an epoxy resin composition containing the same, and a semiconductor device manufactured by using the same.

Abstract: A secondary battery is provided. The secondary battery includes an electrode assembly that is sealed in a receiving portion of a pouch-type battery case together with an electrolyte. The pouch-type battery case is formed from a laminate sheet having an exterior coating layer, a metal layer and an interior adhesive layer. Additionally, electrolyte holding portion for replenishing an electrolyte that is depleted during the manufacturing process or the use of the secondary battery is disposed in the laminate sheet, without contacting the electrolyte disposed in the receiving portion of the pouch-type battery case.

Abstract: A secondary battery is provided. The secondary battery includes an electrode assembly that is sealed in a receiving portion of a pouch-type battery case together with an electrolyte. The pouch-type battery case is formed from a laminate sheet having an exterior coating layer, a metal layer and an interior adhesive layer. Additionally, electrolyte holding portion for replenishing an electrolyte that is depleted during the manufacturing process or the use of the secondary battery is disposed in the laminate sheet, without contacting the electrolyte disposed in the receiving portion of the pouch-type battery case.

Abstract: A phosphonium compound, a method of preparing the same, an epoxy resin composition including the same, and a semiconductor device encapsulated with the same, the compound being represented by Formula 1:

Abstract: A phosphonium compound, an epoxy resin composition including the same, a semiconductor device encapsulated with the same, and a method of encapsulating a semiconductor device, the phosphonium compound being represented by Formula 1:

Abstract: An epoxy resin composition and a semiconductor device, the composition including an epoxy resin; a curing agent; an inorganic filler; a curing catalyst; and a silicon compound, wherein the curing catalyst includes a phosphonium compound represented by the following Formula 4 and the silicon compound comprises a silicon compound represented by the following Formula 7:

Abstract: A phosphonium compound, an epoxy resin composition, a method of preparing a phosphonium compound, and a semiconductor device encapsulated with the epoxy resin composition, the compound being represented by Formula 1:

Abstract: An epoxy resin composition for encapsulation of a semiconductor device and a semiconductor device encapsulated with the epoxy resin composition, the composition including an epoxy resin; a curing agent; an inorganic filler; a curing catalyst; and a compound containing at least one hydroxyl group, wherein the curing catalyst includes a phosphonium compound represented by Formula 4: