Patents by Inventor Soon-Hyung Choi
Soon-Hyung Choi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11956979Abstract: A display device includes: a display panel; and a color conversion panel overlapping the display panel, where the display panel includes a transistor disposed on a first substrate; a light-emitting element electrically connected to the transistor; and a passivation layer disposed between the transistor and the light-emitting element and including a first recess portion. The light-emitting element is disposed on the first recess portion, the color conversion panel includes a first color conversion layer, a second color conversion layer and a transmission layer, which are disposed between a second substrate and the display panel, and at least one selected from the first color conversion layer, the second color conversion layer and the transmission layer overlaps the first recess portion.Type: GrantFiled: May 24, 2021Date of Patent: April 9, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sang Hyung Lim, Jin Ho Jang, Soon Mi Choi
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Patent number: 11951741Abstract: An inkjet apparatus comprises a stage, and an inkjet head positioned over the stage and including a plurality of nozzles through which ink including a plurality of particles is discharged. The inkjet head comprises a base portion constituting a main body of the inkjet head, a discharge portion adjacent to the base portion and including the plurality of nozzles, and an inner flow path between the base portion and the discharge portion and configured to accommodate the ink, wherein the base portion includes a first surface contacting the inner flow path, and at least a part of the first surface is at an incline.Type: GrantFiled: September 8, 2021Date of Patent: April 9, 2024Assignee: Samsung Display Co., Ltd.Inventors: Sang Hyung Lim, Soon Mi Choi
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Publication number: 20240099071Abstract: A display device includes a first substrate, a first electrode above the first substrate, a pixel-defining film above the first electrode, and defining an emission area, a light-emitting layer above the first electrode and the pixel-defining film, a second electrode above the light-emitting layer, a thin-film encapsulation structure above the second electrode, and including an organic film defining an opening, and a color control layer above the thin-film encapsulation structure in the opening.Type: ApplicationFiled: June 23, 2023Publication date: March 21, 2024Inventors: Sang Hyung LIM, Se Jin PARK, Jae Ho EO, Soon Mi CHOI
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Publication number: 20240088519Abstract: Disclosed herein are a lithium secondary battery with ignition suppression structure and a manufacturing method of the lithium secondary battery. More specifically, provided is a method for suppressing ignition of the lithium secondary battery by locating a high-capacity unit including high-capacity unit cells with a high energy density on the upper part and the lower part of a low-capacity unit including low-capacity unit cells with a relatively low energy density.Type: ApplicationFiled: October 19, 2022Publication date: March 14, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventor: Soon Hyung CHOI
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Patent number: 11804635Abstract: A separator comprising a crosslinked polyolefin substrate having a plurality of pores and an inorganic coating layer having internal pores formed on at least one surface of the crosslinked polyolefin substrate. The inorganic coating layer on the at least one surface of the crosslinked polyolefin substrate has internal pores formed by an immersion phase separation method, and a high power secondary battery including the same.Type: GrantFiled: October 30, 2019Date of Patent: October 31, 2023Assignee: LG ENERGY SOLUTION, LTD.Inventors: Su Rim Lee, Soon Hyung Choi, Seok Koo Kim
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Patent number: 11552376Abstract: The present invention provides a single electrode assembly, in which a plurality of negative electrodes and positive electrodes are stacked alternately and repeatedly, and separators are disposed between the plurality of negative electrodes and positive electrodes, the electrode assembly including: a negative electrode tab part formed on one end of the electrode assembly and extending from the plurality of negative electrodes; a positive electrode bus bar spaced apart from the negative electrode tab part on the one end of the electrode assembly and electrically connecting the plurality of the positive electrodes; a positive electrode tab part formed on the other end of the electrode assembly opposite to the one end and extending from the plurality of positive electrodes; and a negative electrode bus bar spaced apart from the positive electrode tab part on the other end of the electrode assembly and electrically connecting the plurality of the negative electrodes.Type: GrantFiled: July 11, 2019Date of Patent: January 10, 2023Inventors: Soon Hyung Choi, Su Rim Lee, Seok Koo Kim
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Publication number: 20220384924Abstract: Provided is a secondary battery comprising: an electrode assembly; a battery case which accommodates the electrode assembly; a first electrolyte which is accommodated in the battery case and primarily impregnates the electrode assembly; and a reinforcement electrolyte member which comprises a packaging material and a second electrolyte, wherein the packaging material is accommodated in the battery case and provided with an oxidation part which is oxidized and decomposed at a set voltage, and the second electrolyte is stored in the packaging material, released to the outside of the packaging material due to the decomposition of the oxidation part, and secondarily impregnates the electrode assembly.Type: ApplicationFiled: November 23, 2020Publication date: December 1, 2022Applicant: LG Energy Solution, Ltd.Inventors: Soon Hyung Choi, Dong In Choi
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Publication number: 20220293951Abstract: An electrode includes an electrode active material layer, the electrode active material layer including an electrode active material and a conductive agent, the conductive agent including: graphene; a carbon nanotube structure in which 2 to 5,000 single-walled carbon nanotube units are bonded to each other; and carbon black, wherein the carbon nanotube structure is contained in the electrode active material layer in an amount of 0.01 wt % to 0.5 wt %. A secondary battery including the electrode is also provided.Type: ApplicationFiled: September 29, 2020Publication date: September 15, 2022Applicant: LG Energy Solution, Ltd.Inventors: Soon Hyung Choi, Yong Jun Kim, Tae Gon Kim
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Publication number: 20220294032Abstract: A secondary battery has a short-circuit part accommodated in the exterior and electrical conductivity is attached to the separator in the electrode assembly, The short-circuit part is spaced apart from the positive electrode tab and the negative electrode tab at a temperature less than a predetermined temperature, and the short-circuit part is in contact with the positive electrode tab and the negative electrode tab by contraction of the separator, to which the short-circuit part is attached, at a temperature equal to or greater than the predetermined temperature to electrically connect the positive electrode tab to the negative electrode tab.Type: ApplicationFiled: October 8, 2020Publication date: September 15, 2022Applicant: LG ENERGY SOLUTION, LTD.Inventor: Soon Hyung CHOI
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Publication number: 20220285689Abstract: An electrode includes an electrode active material layer, the electrode active material layer including an electrode active material and a conductive agent, the conductive agent including: a point-type conductive agent; and a carbon nanotube structure in which 2 to 5,000 single-walled carbon nanotube units are bonded to each other, wherein the carbon nanotube structure has an average length of 1 ?m to 500 ?m, and the carbon nanotube structure is contained in the electrode active material layer in an amount of 0.01 wt % to 5.0 wt %. A secondary battery including the electrode is also provided.Type: ApplicationFiled: September 28, 2020Publication date: September 8, 2022Applicant: LG Energy Solution, Ltd.Inventors: Hyun Woong Yun, Yong Jun Kim, Soon Hyung Choi, Tae Gon Kim, Hoe Jin Hah
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Publication number: 20220085461Abstract: A secondary battery includes an electrode assembly having positive electrodes, of which positive electrode tabs are connected to each other, and negative electrodes, of which negative electrode tabs are connected to each other, the electrode assembly having a quadrangular shape, a space part that is an empty space is defined between two sides facing each other, and the positive electrode tabs and the negative electrode tabs are positioned within the space part, a positive electrode lead having one end connected to the positive electrode tabs, a negative electrode lead having one end connected to the negative electrode tabs, and a pouch in which the electrode assembly is embedded is provided. The other end of the positive electrode lead and the other end of the negative electrode lead pass through the pouch to protrude from one of the largest surfaces of the pouch to the outside.Type: ApplicationFiled: October 29, 2019Publication date: March 17, 2022Applicant: LG ENERGY SOLUTION, LTD.Inventors: Soon Hyung CHOI, Sun Kyu KIM
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Publication number: 20210074984Abstract: A separator comprising a crosslinked polyolefin substrate having a plurality of pores and an inorganic coating layer having internal pores formed on at least one surface of the crosslinked polyolefin substrate. The inorganic coating layer on the at least one surface of the crosslinked polyolefin substrate has internal pores formed by an immersion phase separation method, and a high power secondary battery including the same.Type: ApplicationFiled: October 30, 2019Publication date: March 11, 2021Applicant: LG CHEM, LTD.Inventors: Su Rim LEE, Soon Hyung CHOI, Seok Koo KIM
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Publication number: 20200287196Abstract: The present invention provides a single electrode assembly, in which a plurality of negative electrodes and positive electrodes are stacked alternately and repeatedly, and separators are disposed between the plurality of negative electrodes and positive electrodes, the electrode assembly including: a negative electrode tab part formed on one end of the electrode assembly and extending from the plurality of negative electrodes; a positive electrode bus bar spaced apart from the negative electrode tab part on the one end of the electrode assembly and electrically connecting the plurality of the positive electrodes; a positive electrode tab part formed on the other end of the electrode assembly opposite to the one end and extending from the plurality of positive electrodes; and a negative electrode bus bar spaced apart from the positive electrode tab part on the other end of the electrode assembly and electrically connecting the plurality of the negative electrodes.Type: ApplicationFiled: July 11, 2019Publication date: September 10, 2020Applicant: LG Chem, Ltd.Inventors: Soon Hyung Choi, Su Rim Lee, Seok Koo Kim
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Patent number: 10741881Abstract: The secondary battery includes a case in which a positive electrode lead and a negative electrode lead are provided, wherein the case includes an external layer exposed to the outside, an insulation layer disposed in the case and insulated, a conductive layer stacked between the external layer and the insulation layer, made of a conductive material, and having one side coming into contact with the positive electrode lead and the other side coming into contact with the negative electrode lead, and a safety member disposed at a center of the conductive layer to prevent electricity from flowing through the conductive layer at a predetermined temperature or less and melted at the predetermined temperature or more to allow the electricity to flow through the conductive layer.Type: GrantFiled: September 18, 2017Date of Patent: August 11, 2020Assignee: LG Chem, Ltd.Inventors: Soon Hyung Choi, Su Rim Lee, Song Taek Oh
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Publication number: 20200127338Abstract: The secondary battery includes a case in which a positive electrode lead and a negative electrode lead are provided, wherein the case includes an external layer exposed to the outside, an insulation layer disposed in the case and insulated, a conductive layer stacked between the external layer and the insulation layer, made of a conductive material, and having one side coming into contact with the positive electrode lead and the other side coming into contact with the negative electrode lead, and a safety member disposed at a center of the conductive layer to prevent electricity from flowing through the conductive layer at a predetermined temperature or less and melted at the predetermined temperature or more to allow the electricity to flow through the conductive layer.Type: ApplicationFiled: September 18, 2017Publication date: April 23, 2020Applicant: LG Chem, Ltd.Inventors: Soon Hyung Choi, Su Rim Lee, Song Taek Oh
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Patent number: 10566604Abstract: The present disclosure relates to a method for manufacturing an electrode assembly for an electrochemical device. More particularly, the present disclosure relates to a method for manufacturing a curved electrode assembly having a curve with a uniform curvature radius. According to the present disclosure, as the curved electrode assembly is manufactured by stacking a plurality of curved unit cells having a uniform curvature radius, restoration to the original shape is low and shape stability is high as compared to an electrode assembly manufactured by bending a flat electrode assembly. In addition, as unit cells included in an electrode assembly are produced to have a curve by a roll lamination process under a uniform condition and they have the same curvature radius or a small difference in curvature radius, it is possible to easily manufacture an electrode assembly having a desired curvature radius without excessive deformation of the unit cells.Type: GrantFiled: June 23, 2016Date of Patent: February 18, 2020Assignee: LG Chem, Ltd.Inventors: Soon-Hyung Choi, Jung-Seok Choi
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Patent number: 10297868Abstract: Disclosed is a method for manufacturing a secondary battery. More specifically, the present disclosure relates to a method for manufacturing an electrode assembly by stacking a plurality of bi-cell type and/or monocell type unit cells. A method for manufacturing an electrode assembly according to the present disclosure can easily remove the curvature which occurs in a unit cell in a roll lamination process, and fabricate a flat plate electrode assembly with a simple process. Further, when the electrode assembly is manufactured with the method described above, the curvature between the unit cells constituting the electrode assembly may be offset, and accordingly, a time during which the flat plate shape in the electrode assembly is maintained may be extended significantly.Type: GrantFiled: December 3, 2015Date of Patent: May 21, 2019Assignee: LG Chem, Ltd.Inventors: Soon-Hyung Choi, Jung-Seok Choi
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Publication number: 20180076442Abstract: The present disclosure relates to a method for manufacturing an electrode assembly for an electrochemical device. More particularly, the present disclosure relates to a method for manufacturing a curved electrode assembly having a curve with a uniform curvature radius. According to the present disclosure, as the curved electrode assembly is manufactured by stacking a plurality of curved unit cells having a uniform curvature radius, restoration to the original shape is low and shape stability is high as compared to an electrode assembly manufactured by bending a flat electrode assembly. In addition, as unit cells included in an electrode assembly are produced to have a curve by a roll lamination process under a uniform condition and they have the same curvature radius or a small difference in curvature radius, it is possible to easily manufacture an electrode assembly having a desired curvature radius without excessive deformation of the unit cells.Type: ApplicationFiled: June 23, 2016Publication date: March 15, 2018Applicant: LG Chem, Ltd.Inventors: Soon-Hyung CHOI, Jung-Seok CHOI
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Publication number: 20170263982Abstract: Disclosed is a method for manufacturing a secondary battery. More specifically, the present disclosure relates to a method for manufacturing an electrode assembly by stacking a plurality of bi-cell type and/or monocell type unit cells. A method for manufacturing an electrode assembly according to the present disclosure can easily remove the curvature which occurs in a unit cell in a roll lamination process, and fabricate a flat plate electrode assembly with a simple process. Further, when the electrode assembly is manufactured with the method described above, the curvature between the unit cells constituting the electrode assembly may be offset, and accordingly, a time during which the flat plate shape in the electrode assembly is maintained may be extended significantly.Type: ApplicationFiled: December 3, 2015Publication date: September 14, 2017Applicant: LG Chem, Ltd.Inventors: Soon-Hyung Choi, Jung-Seok Choi