Abstract: A method for manufacturing an electrode assembly according to an embodiment of the present invention may include applying a positive electrode active material to at least a portion of a positive electrode collector, applying a negative electrode active material to at least a portion of a negative electrode collector, The method may include interposing a separator between a positive electrode and a negative electrode, and respectively removing a positive electrode insulating layer and a negative electrode insulating layer from at least partial areas of a positive electrode tab, which is not coated with the positive electrode active material, and an negative electrode tab, which is not coated with the negative electrode active material in the negative electrode collector. The method may include connecting a positive electrode lead and a negative electrode lead to the positive electrode tab and the negative electrode tab, respectively.

Abstract: A method of detecting a lamination defect of an electrode assembly in the initial stage, including: forming an insulating member having a predetermined width and a predetermined height in an overhang region of one end or two ends of one surface of a negative electrode; manufacturing an electrode assembly by sequentially laminating a separator and a positive electrode on one surface of the negative electrode; and determining whether there is a lamination defect in the electrode assembly by measuring a thickness of the electrode assembly. Also provided are an electrode assembly including an insulating member, and a battery cell including the electrode assembly.

Abstract: A cylindrical electrode assembly includes a first electrode and a second electrode that are wound in a state where the first electrode and the second electrode are stacked with a separation layer therebetween. The first electrode includes a first electrode coated portion. The second electrode includes a second electrode coating portion, a second electrode uncoated portion to which a second active material is not applied, and an insulation coating layer at a boundary portion between the second electrode coated portion and the second electrode uncoated portion at an end portion of the second electrode uncoated portion, the insulating coating layer being thinner than the second electrode coating, the boundary portion being located further inward than an end portion of the separation layer in the axial direction, and the boundary portion extending further outward than the end portion of the separation layer in the axial direction.

Abstract: An electrode assembly is made by winding a positive electrode, a separator, and a negative electrode, in which the negative electrode includes a negative electrode active material portion made by applying a negative electrode active material onto a negative electrode current collector, a central negative electrode non-coated portion positioned at a winding center portion and having no negative electrode active material, and a negative electrode non-coated portion including an outermost peripheral negative electrode non-coated portion positioned at an outermost winding periphery, in which a variable unit is provided on the outermost peripheral negative electrode non-coated portion and configured to adjust a length or width thereof, and in which the variable unit includes one or more cutout portions having a non-straight shape, and a variable portion configured to adjust a length or width thereof.

Abstract: An apparatus and method for inspecting lithium precipitation may form a magnetic field around a battery cell to be inspected to induce an eddy current and may compare measured impedance of the battery cell with standard data to detect lithium plating in the battery cell, thereby providing high stability and reliability.

Abstract: The present invention relates to a battery cell including an electrode tab having a breakage prevention function and a battery module including the same, and more particularly a battery cell including a case configured to have a laminate sheet structure, an electrode assembly received in the case, an electrode tab located at a side surface of the electrode assembly, an electrode lead having one side connected to the electrode tab and the other side projecting out of the case, and an insulative film provided at each of an upper surface and a lower surface of the electrode lead, wherein the electrode tab is provided with a buffer portion, the length of the buffer portion being adjustable, and a battery module including the same.

Abstract: A secondary battery comprises an electrode assembly comprising radical units in which first and second electrodes are alternately laminated with a separator therebetween and a separation film surrounding the radical units to be repeatedly laminated, wherein the electrode assembly comprises a protection unit laminated on an outermost separation film disposed on the uppermost end or lowermost end of the separation film, the protection unit has a structure comprising a second protection electrode, a separator, and a first protection electrode which are successively laminated from the outermost separation film disposed on the uppermost end or lowermost end of the electrode assembly, the second protection electrode has a cross-sectional coating structure comprising a second collector and a second electrode active material portion coated with a second electrode active material on an inner surface of the second collector, and the inner surface is a surface facing a center of the electrode assembly.

Abstract: A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte includes a lithium salt, a non-aqueous solvent, a compound represented by Formula 1, and a compound represented by Formula 2, wherein the compound represented by Formula 1 and the compound represented by Formula 2 are included in a volume ratio of 1:0.1 to 1:1.5. Also, a lithium secondary battery including the non-aqueous electrolyte has improved high-temperature storage safety.

Abstract: Disclosed herein is a method for manufacturing an electrode assembly. The method may include a step of applying an electrode active material to at least a portion of an electrode collector, which is formed by sequentially stacking a first electrode foil, an electrode insulating layer, and a second electrode foil, to manufacture an electrode, a step of stacking the electrode and a separator, and a step of connecting an electrode lead to a non-coating portion that is not coated with the electrode active material on the electrode collector. The step of connecting the electrode lead may include passing a coupling part through the electrode collector and the electrode lead to connect the electrode collector to the electrode lead.

Abstract: A secondary battery includes an electrode assembly including a first electrode bent in a zigzag shape, a second electrode bent in a zigzag shape to overlap the first electrode, and a separator bent in a zigzag shape to be interposed between the first and second electrodes; a can configured to accommodate the electrode assembly; and a cap part mounted in an opening of the can. An upper end of the first electrode is disposed on the uppermost end of the electrode assembly to extend longer than the second electrode, a lower end of the second electrode on the lowermost end of the electrode assembly extends longer than the first electrode, a first protrusion piece bonded to the cap part provided on the upper end of the first electrode, and a second protrusion piece bonded to the can provided on the lower end of the second electrode.

Abstract: A method for manufacturing an electrode assembly according to an embodiment of the present invention may include applying a positive electrode active material to at least a portion of a positive electrode collector, applying a negative electrode active material to at least a portion of a negative electrode collector, The method may include interposing a separator between a positive electrode and a negative electrode, and respectively removing a positive electrode insulating layer and a negative electrode insulating layer from at least partial areas of a positive electrode tab, which is not coated with the positive electrode active material, and an negative electrode tab, which is not coated with the negative electrode active material in the negative electrode collector. The method may include connecting a positive electrode lead and a negative electrode lead to the positive electrode tab and the negative electrode tab, respectively.

Abstract: A method of detecting a lamination defect of an electrode assembly in the initial stage, including: forming an insulating member having a predetermined width and a predetermined height in an overhang region of one end or two ends of one surface of a negative electrode; manufacturing an electrode assembly by sequentially laminating a separator and a positive electrode on one surface of the negative electrode; and determining whether there is a lamination defect in the electrode assembly by measuring a thickness of the electrode assembly. Also provided are an electrode assembly including an insulating member, and a battery cell including the electrode assembly.

Abstract: Provided is a manufacturing method of an electrode, wherein productivity is improved by preventing a short circuit forming between a positive electrode and negative electrode even when an overhang occurs during manufacture of an electrode assembly. The present technology includes a step of forming an electrode active material layer and a resistance layer, by applying a resistance layer composition including inorganic additives and an electrode slurry, including an electrode active material on a current collector; a step of drying the current collector in which the electrode active material layer and resistance layer are formed; and a step of forming the electrode in which an electrode tab is formed at one end by notching the dried current collector and the method of forming the electrode active material layer and resistance layer is performed by one slot die in which two discharge ports are formed.

Abstract: A secondary battery comprises an electrode assembly comprising radical units in which first and second electrodes are alternately laminated with a separator therebetween and a separation film surrounding the radical units to be repeatedly laminated, wherein the electrode assembly comprises a protection unit laminated on an outermost separation film disposed on the uppermost end or lowermost end of the separation film, the protection unit has a structure comprising a second protection electrode, a separator, and a first protection electrode which are successively laminated from the outermost separation film disposed on the uppermost end or lowermost end of the electrode assembly, the second protection electrode has a cross-sectional coating structure comprising a second collector and a second electrode active material portion coated with a second electrode active material on an inner surface of the second collector, and the inner surface is a surface facing a center of the electrode assembly.

Abstract: A secondary battery comprises an electrode assembly comprising radical units in which first and second electrodes are alternately laminated with a separator therebetween and a separation film surrounding the radical units to be repeatedly laminated, wherein the electrode assembly comprises a protection unit laminated on an outermost separation film disposed on the uppermost end or lowermost end of the separation film, the protection unit has a structure comprising a second protection electrode, a separator, and a first protection electrode which are successively laminated from the outermost separation film disposed on the uppermost end or lowermost end of the electrode assembly, the second protection electrode has a cross-sectional coating structure comprising a second collector and a second electrode active material portion coated with a second electrode active material on an inner surface of the second collector, and the inner surface is a surface facing a center of the electrode assembly.

Abstract: A display driving device including: a gate driver configured to provide a first gate selection signal to a first gate line of a display panel to select the first gate line; a source driver configured to provide an image signal corresponding to the first gate line to a source line; an Electrostatic Discharge (ESD) detection circuit configured to receive a power supply voltage, determine whether there is an ESD in the power supply voltage and, when the ESD is detected, generate a first detection signal; and a controller configured to receive the first detection signal to generate a masking signal, wherein the gate driver is configured to receive the masking signal and not provide a second gate selection signal to select a second gate line.

Abstract: A secondary battery comprises an electrode assembly comprising radical units in which first and second electrodes are alternately laminated with a separator therebetween and a separation film surrounding the radical units to be repeatedly laminated, wherein the electrode assembly comprises a protection unit laminated on an outermost separation film disposed on the uppermost end or lowermost end of the separation film, the protection unit has a structure comprising a second protection electrode, a separator, and a first protection electrode which are successively laminated from the outermost separation film disposed on the uppermost end or lowermost end of the electrode assembly, the second protection electrode has a cross-sectional coating structure comprising a second collector and a second electrode active material portion coated with a second electrode active material on an inner surface of the second collector, and the inner surface is a surface facing a center of the electrode assembly.

Abstract: A display driving device including: a gate driver configured to provide a first gate selection signal to a first gate line of a display panel to select the first gate line; a source driver configured to provide an image signal corresponding to the first gate line to a source line; an Electrostatic Discharge (ESD) detection circuit configured to receive a power supply voltage, determine whether there is an ESD in the power supply voltage and, when the ESD is detected, generate a first detection signal; and a controller configured to receive the first detection signal to generate a masking signal, wherein the gate driver is configured to receive the masking signal and not provide a second gate selection signal to select a second gate line.

Abstract: A new and distinct Citrus reticulate Blanco plant named ‘Tamdori’, characterized by its upright plant type and strong vigor, fertile but self-incompatibility pollen, orange fruit color, germination stage in middle of April, blooming state in late May, fruits start coloring in late October and finish coloring in late December, mature stage in middle of February, fruit weight at about 168.9 g, fruit skin thickness at about 2.3 mm and easy to peel, fruit flesh rate at about 79.9%.

Abstract: A new and distinct Citrus reticulate Blanco plant named Tamnaneunbong, characterized by its upright plant type and strong vigor, short oval ovary shape, germination state in middle of April, blooming state in late May, fruits start coloring in late October, mature state in late March, acidity of the fruit juice at about 1.51%, leaf length at about 10.1 cm and leaf width at about 4.3 cm, and length of leaf petiole at about 3.6 cm.