Abstract: A compressor is provided which is configured to allow lubrication of a thrust surface through an oil groove formed in a thrust surface of a fixed scroll. Also, a scroll compressor is provided which smoothly supplies oil to a thrust surface of a fixed scroll by including a fixed scroll having an oil groove formed in the thrust surface of a fixed scroll sidewall, and allows an injection pressure acting on an orbiting scroll in an upward direction to be added by supplying the oil guided to the oil groove to the thrust surface of the fixed scroll such that an overturn moment generated in the orbiting scroll may be offset.

Abstract: A secondary battery cell module-type activation tray for transferring and charging a plurality of battery cells in a manufacturing process of a secondary battery, including a plurality of module trays that are embedded from one side opened to accommodate a plurality of battery cells in a plurality of rows to another side opposite thereto, the battery cells being disposed in a respective module tray, and each of the module trays has a structure that can be coupled or separated as extended in one direction or multiple directions in a plan view.

Abstract: Disclosed herein is a plate-shaped battery cell including an electrode assembly, which includes a positive electrode, a negative electrode, and a separator, and a cell case, in which the electrode assembly is mounted, outer edges of the cell case being sealed by thermal bonding, wherein the electrode assembly is configured such that each electrode plate having the same polarity is partitioned into at least two electrode parts having different planar shapes and sizes, the electrode assembly is provided at a region thereof at which outer edges of the electrode parts intersect each other with at least one outside corner, at which the outer edges intersect each other at an angle of 30 to 150 degrees, and an outside recess is formed in a region of each of the electrode plates and the separator corresponding to the outer corner such that the outside recess is formed so as to be recessed inward.

Abstract: A secondary battery and a method for manufacturing the same are provided. An electrode assembly accommodated in the secondary battery having various shapes is manufactured. In particular, a method for manufacturing a secondary battery includes an electrode stack preparation step of preparing an electrode stack which includes a first unit cell having a first area and a second unit cell having a second area that is less than the first area, and which has a structure in which the second unit cell is disposed on one surface of the first unit cell. The method further includes a curved surface formation step of pressing at least a part of an independent portion, which does not overlap the second unit cell, of the first unit cell to form a curved surface on the at least the part of the independent portion.

Abstract: A compressor is provided which is configured to allow lubrication of a thrust surface through an oil groove formed in a thrust surface of a fixed scroll. Also, a scroll compressor is provided which smoothly supplies oil to a thrust surface of a fixed scroll by including a fixed scroll having an oil groove formed in the thrust surface of a fixed scroll sidewall, and allows an injection pressure acting on an orbiting scroll in an upward direction to be added by supplying the oil guided to the oil groove to the thrust surface of the fixed scroll such that an overturn moment generated in the orbiting scroll may be offset.

Abstract: An unmanned aerial vehicle (UAV) is provided, which includes a main body; a plurality of frames each extending from the main body; and a plurality of thrust generating devices respectively mounted on the plurality of frames, each of the thrust generating devices including a propeller. The propeller includes a hub that provides a rotation axis of the propeller, and rotates according to an operation of the thrust generating device, and a pair of blades, each of which is pivotably mounted on the hub, and generates a thrust or lift while rotating around the rotation axis as the hub is rotated. The blades are pivotably interlocked with each other such that the blades are aligned to a folded position in which the blades are parallel with each other on the hub in a first arrangement or aligned to an expanded position in a diametric direction of a rotating region of the propeller in a second arrangement.

Abstract: A portable electronic device is provided. The electronic device includes a transparent front glass cover including a planar portion that forms a front surface of the electronic device, a planar rear glass cover that forms a rear surface of the electronic device, a metal bezel that surrounds a space formed by the front glass cover and the rear glass cover, and a flexible display device that is embedded in the space and exposed through the front glass cover. The front cover includes a left bent portion and a right bent portion on the left and right of the planar portion at the center of the front cover.

Abstract: Disclosed herein is a battery cell configured such that an electrode assembly, including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, is mounted in a receiving part formed in a battery case, a positive electrode terminal and a negative electrode terminal protrude from at least one side of the electrode assembly, and an insulative material is provided between the electrode assembly and the battery case.

Abstract: A portable electronic device is provided. The electronic device includes a transparent front glass cover including a planar portion that forms a front surface of the electronic device, a planar rear glass cover that forms a rear surface of the electronic device, a metal bezel that surrounds a space formed by the front glass cover and the rear glass cover, and a flexible display device that is embedded in the space and exposed through the front glass cover. The front cover includes a left bent portion and a right bent portion on the left and right of the planar portion at the center of the front cover.

Abstract: A scroll compressor includes a drive motor, a rotary shaft coupled to the drive motor, a main frame disposed below the drive motor, a fixed scroll disposed below the main frame, an orbiting scroll disposed between the main frame and the fixed scroll and eccentrically coupled to the rotary shaft, and an Oldham's ring coupled to the main frame and the orbiting scroll and configured to restrict rotation of the orbiting scroll relative to the fixed scroll. The Oldham's ring includes: a ring body, a first key that receives a first fixing boss of the ring body and that is configured to couple to the main frame, and a second key that receives a second fixing boss of the ring body and that is configured to couple to the orbiting scroll.

Abstract: A scroll compressor includes a casing; a drive motor; a rotary shaft; a fixed scroll including a fixed wrap; and an orbiting scroll eccentrically coupled to rotary shaft and including an orbiting wrap configured to engage with the fixed wrap. At least one of the fixed wrap or the orbiting wrap defines an offset section that is defined between the fixed wrap and the orbiting wrap and that is greater than an orbital radius corresponding to a distance between the fixed wrap and the orbiting wrap in a state in which a center of the fixed scroll is aligned to a center of the orbiting scroll. The offset section is disposed at a contact portion between the fixed wrap and the orbiting wrap. The contact portion has a maximum length based on a rotation angle of the rotary shaft being within a pre-set range with respect to a reference point.

Abstract: Disclosed herein is a stacked/folded type electrode assembly configured to have a structure in which a plurality of unit cells, each of which includes a positive electrode having an electrode mixture including an electrode active material applied to a current collector, a negative electrode having an electrode mixture including an electrode active material applied to a current collector, and a separator disposed between the positive electrode and the negative electrode, is wound in the state of being arranged on a sheet type separation film, wherein the unit cells include one full cell and three or more bi-cells, the outermost unit cells of the electrode assembly are each configured such that an electrode forming the outside of the electrode assembly is configured as a single-sided electrode, in which no electrode mixture is applied to the surface of the current collector facing the outside of the electrode assembly, and the single-sided electrodes are electrodes having the same polarity.

Abstract: The present invention relates an apparatus and method for manufacturing an electrode, and more particularly, to an apparatus and method for manufacturing an electrode, which is capable of improving productivity of the electrode in comparison with the related art. According to an aspect of the present invention so at to achieve the above object, a method for manufacturing an electrode includes: a step of preparing a collector; a coating step of applying an electrode active material to one surface or both surfaces of the collector to manufacture an initial electrode; and a first cutting step of cutting the initial electrode coated with the electrode active material to manufacture a plurality of middle-stage electrodes, wherein, in the first cutting step, the initial electrode is cut so that at least one of the plurality of middle-stage electrodes has a length different from those of the other middle-stage electrodes.

Abstract: Disclosed herein is a plate-shaped battery cell including an electrode assembly, which includes a positive electrode, a negative electrode, and a separator, and a cell case, in which the electrode assembly is mounted, outer edges of the cell case being sealed by thermal bonding, wherein the electrode assembly is configured such that each electrode plate having the same polarity is partitioned into at least two electrode parts having different planar shapes and sizes, the electrode assembly is provided at a region thereof at which outer edges of the electrode parts intersect each other with at least one outside corner, at which the outer edges intersect each other at an angle of 30 to 150 degrees, and an outside recess is formed in a region of each of the electrode plates and the separator corresponding to the outer corner such that the outside recess is formed so as to be recessed inward.

Abstract: A secondary battery cell module-type activation tray for transferring and charging a plurality of battery cells in a manufacturing process of a secondary battery, including a plurality of module trays that are embedded from one side opened to accommodate a plurality of battery cells in a plurality of rows to another side opposite thereto, the battery cells being disposed in a respective module tray, and each of the module trays has a structure that can be coupled or separated as extended in one direction or multiple directions in a plan view.

Abstract: A plasma generating apparatus for a secondary battery, including a roller part having a transfer roller configured to transfer a separator and a metal member built in the transfer roller, and a plasma generating part interacting with the metal member to generate plasma and thereby to form a mask that is patterned on a surface of the separator and has a bonding force.

Abstract: An apparatus for charging a wearable electronic device includes a first power terminal and a second power terminal to which predetermined voltage values are applied, respectively and a first ground terminal and a second ground terminal. The first power terminal and the first ground terminal are arranged in a first direction with respect to a first axis. The second power terminal and the second ground terminal are arranged in a second direction opposite to the first direction with respect to the first axis. The wearable electronic device is charged through the first power terminal and the first ground terminal when the wearable electronic device is placed on the apparatus in the first direction. The wearable electronic device is charged through the second power terminal and the second ground terminal when the wearable electronic device is placed on the apparatus in the second direction.

Abstract: Disclosed in a battery cell including: an electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive and negative electrodes, with electrode tabs protruding from at least one side of outside peripheral portions of the electrode assembly; and a battery casing including first and second casings provided with first and second receiving parts, respectively, the first and second receiving parts respectively accommodating the electrode assemblies and having different sizes or shapes, wherein in a state in which electrode leads connected to the electrode tabs protrude from outside peripheral portions of the first and second casings, the battery casing is sealed by thermal fusion along the outside peripheral portions of the first and second casings, wherein electrode lead grooves recessed downwardly such that the electrode leads are seated therein are provided at a portion of the outside peripheral portions of the first and second casings.

Abstract: Ho Honeycomb monolith structure, especially for use in mass transfer-limited processes or processes for the selective catalytic reduction (SCR) of nitrogen oxides, comprising: a plurality of cell walls defining a plurality of polygonal channels, the plurality of cell walls and channels extending in parallel along a common direction from an entrance end to an outlet end of the structure in the fluid flow direction. The transversal cross section of a polygonal channel has the shape of a convex elongated polygon, wherein at least 50% of the internal angles between two adjacent walls of the convex polygon are above 90 degrees and wherein the cell diameter ratio LL/LS is greater than 1.5.