Patents by Inventor Hae Hwang
Hae Hwang 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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Publication number: 20240140089Abstract: A nozzle according to an embodiment includes: a metal portion, which defines a penetration hole therein; and a ceramic portion, which surrounds the metal portion, where the metal portion includes a first region and a second region having a narrower diameter than the first region, the ceramic portion surrounds the second region, and an end of the metal portion close to a discharging end of the nozzle is spaced apart from an end of the ceramic portion close to the discharging end.Type: ApplicationFiled: October 31, 2023Publication date: May 2, 2024Inventors: Chan Hae HWANG, Minkyu SHIN, Tae-Ho YOUN
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Publication number: 20240146006Abstract: This disclosure relates to a connector comprising a first RF contact; a second RF contact spaced apart from the first RF contact in a first axis direction; an insulation part; and a cover shell, wherein the first RF contact includes a (1-1)th RF linker member for connecting with an RF contact of the other connector; a (1-2)th RF linker member spaced apart from the (1-1)th RF linker member on the basis of a second axis direction perpendicular to the first; and a first RF linker member arranged between the (1-1)th RF linker member and the (1-2)th RF linker member on the basis of the second axis direction, the insulation part includes a first RF inspection window arranged between the (1-1)th RF linker member and the (1-2)th RF linker member on the basis of the second axis direction, and the first RF linker member is exposed through the first RF inspection window.Type: ApplicationFiled: March 20, 2022Publication date: May 2, 2024Inventors: Su Chan LEE, Kyung Hae CHOI, Jung Hoon CHOI, Hyun Joo HWANG
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Patent number: 11967699Abstract: A pre-lithiation reaction chamber apparatus including a pre-lithiation reaction vessel which can prevent harmful effects caused by water that may be generated during pre-lithiation is provided. The pre-lithiation reaction vessel includes an electrolyte including a lithium salt, a negative electrode for a lithium secondary battery and a lithium ion-supplying member. Each of the negative electrode for the lithium secondary battery and the lithium ion-supplying member is at least partially in contact with the electrolyte. The pre-lithiation reaction chamber apparatus further includes a water-capturing vessel. The water-capturing vessel includes water-capturing powder, a container configured to receive the water-capturing powder, and a position-changing member configured to change a position of the water-capturing powder in the container.Type: GrantFiled: September 3, 2020Date of Patent: April 23, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Seung-Hae Hwang, Ye-Ri Kim, Oh-Byong Chae
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Publication number: 20240128653Abstract: Disclosed is a meta-structure. The meta-structure includes a lower electrode, a lower insulating layer on the lower electrode, a lower metal oxide layer on the lower insulating layer, a metal layer on the lower metal oxide layer, an upper metal oxide layer on the metal layer, an upper insulating layer on the upper metal oxide layer, and antenna electrodes on the upper insulating layer.Type: ApplicationFiled: June 28, 2023Publication date: April 18, 2024Inventors: Yong Hae KIM, Chi-Sun HWANG, Joo Yeon KIM, Jaehyun MOON, Jong-Heon YANG, Kyunghee CHOI, Ji Hun CHOI
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Patent number: 11959668Abstract: A heat management system which includes: a refrigerant circulation line which includes a compressor, a water cooling-type condenser, a first expansion valve, an air cooling-type condenser, a second expansion valve, and an evaporator, and cools the indoor space by circulating a refrigerant; a heating line which heats the indoor space by circulating cooling water which exchanges heat with the refrigerant through the water cooling-type condenser; a first cooling line which cools a battery by circulating cooling water which exchanges heat with air or the refrigerant; and a second cooling line which cools electric components including a driving motor, by circulating cooling water which exchanges heat with air or the refrigerant. The heat management system enables efficient heat management of electric components and a battery in a vehicle as well as cooling and heating of the vehicle.Type: GrantFiled: October 14, 2019Date of Patent: April 16, 2024Assignee: Hanon SystemsInventors: Hae-Jun Lee, Sung Je Lee, In-Guk Hwang
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Patent number: 11949078Abstract: A heat management system including a refrigerant circulation line including a compressor, a water-cooling condenser, an air-cooling condenser, a first expansion valve, an evaporator, a refrigerant heat exchanger, and a gas/liquid separator that discharges only a liquid refrigerant, and cooling an indoor place by circulating a refrigerant; a heating line for heating the indoor place by circulating, through the water-cooling condenser, cooling water that exchanges heat with the refrigerant; and a cooling line for cooling a battery and an electrical component by circulating air or cooling water that exchanges heat with the refrigerant. Therefore, the present invention can not only cool and heat a vehicle but also efficiently manage heat for an electrical component and a battery in a vehicle, and can reduce the number of constituent components for heating and cooling.Type: GrantFiled: October 2, 2019Date of Patent: April 2, 2024Assignee: Hanon SystemsInventors: Hae-Jun Lee, Moo Joong Kim, In-Guk Hwang
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Publication number: 20240088347Abstract: A prelithiated negative electrode, and a secondary battery including a prelithiated electrode, including a negative electrode current collector; and a negative electrode active material layer present on at least one surface of the negative electrode current collector. The negative electrode active material layer includes high-capacity artificial graphite having no carbon coating. The negative electrode active material layer is prelithiated, and the content of lithium intercalated to the prelithiated negative electrode active material layer is 3% to 5% based on the lithium content intercalated when the negative electrode is charged to 100%.Type: ApplicationFiled: November 11, 2020Publication date: March 14, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: Hee-Won CHOI, Ye-Ri KIM, Chan-Ki PARK, Mi-Ru JO, Oh-Byong CHAE, Seung-Hae HWANG
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Publication number: 20240079413Abstract: A complementary thin film transistor (TFT) includes a substrate and a first TFT and a second TFT disposed on the substrate, wherein a first conductive semiconductor layer of the first TFT and a second gate electrode layer of the second TFT are disposed in the same layer and include the same material.Type: ApplicationFiled: August 31, 2023Publication date: March 7, 2024Inventors: Himchan OH, Jong-Heon YANG, Ji Hun CHOI, Seung Youl KANG, Yong Hae KIM, Jeho NA, Jaehyun MOON, Chan Woo PARK, Sung Haeng CHO, Jae-Eun PI, Chi-Sun HWANG
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Patent number: 11921383Abstract: Provided is a liquid crystal display device and a method for operating the liquid crystal display device. In the liquid crystal display device including a plurality of pixels, one pixel of the plurality of pixels includes a first sub pixel and a second sub pixel, which are adjacent to each other. The one pixel includes a first substrate, a first electrode provided on the first substrate, metamaterial layers provided on the first electrode, wherein the metamaterial layers include a first metamaterial layer within the first sub pixel and a second metamaterial layer within the second sub pixel, a liquid crystal layer provided on the first and second metamaterial layers, a second electrode provided on the liquid crystal layer, and a second substrate provided on the second electrode. The first and second metamaterial layers include metamaterials having properties different from each other, respectively.Type: GrantFiled: December 19, 2022Date of Patent: March 5, 2024Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Yong Hae Kim, Chi-Sun Hwang
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Publication number: 20230335795Abstract: The present invention relates to a lithium secondary battery including a non-aqueous electrolyte solution containing a lithium salt, an organic solvent, a first additive represented by Formula 1 and a second additive represented by Formula 2, a positive electrode including a lithium iron phosphate-based composite oxide, a negative electrode including a negative electrode active material, and a separator interposed between the positive electrode and the negative electrode, wherein an amount of the first additive and an amount of the second additive are each 0.1 wt% to 5 wt% based on the total weight of the non-aqueous electrolyte solution, wherein R1, R2, Cy1 and L1 are described herein.Type: ApplicationFiled: November 8, 2021Publication date: October 19, 2023Applicant: LG Energy Solution, Ltd.Inventors: Yu Ha An, Seung Hae Hwang, Hyun Seung Kim, Chul Haeng Lee, Jeong Woo Oh
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Publication number: 20230206391Abstract: Disclosed are an apparatus for interpolating a point cloud and a method thereof. More particularly, a technology for interpolating a point cloud based on V-PCC decoding information and a 2D interpolation technology is disclosed.Type: ApplicationFiled: December 2, 2022Publication date: June 29, 2023Applicant: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITYInventors: Yong Hae HWANG, Jun Sik KIM, Kyu Heon KIM
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Publication number: 20230150822Abstract: Provided are reduced acylated graphene oxide as an electrode active material and a method for preparing the same. By the method for preparing reduced acylated graphene oxide according to the present invention, a negative electrode active material for a lithium secondary battery having stable activity and a high battery capacity may be prepared with a simple and low-cost process. In addition, the active material prepared by the preparation method has low resistance, a high battery capacity, and improved rate-limiting characteristics while having stable cycle characteristics.Type: ApplicationFiled: November 14, 2022Publication date: May 18, 2023Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Seung Hae HWANG, Chang-soo JIN, Kyoung-hee SHIN, Sun-hwa YEON, Se-Kook PARK, Dong Ha KIM
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Publication number: 20230080890Abstract: Disclosed is a method of manufacturing a secondary battery, the method including: manufacturing a pre-lithiation cell including a negative electrode and a lithium metal counter electrode and pre-lithiating the negative electrode by charging the pre-lithiation cell; separating the pre-lithiated negative electrode from the pre-lithiation cell and manufacturing an electrode assembly including the pre-lithiated negative electrode and a positive electrode; impregnating the electrode assembly with an electrolyte; activating the impregnated electrode assembly by performing a first charging the impregnated electrode assembly; removing gas generated in the activation; discharging the activated electrode assembly immediately after removing the gas; and performing a second charging on the discharged electrode assembly.Type: ApplicationFiled: February 24, 2021Publication date: March 16, 2023Applicant: LG ENERGY SOLUTION, LTD.Inventors: Su Yeon LEE, Ye Ri KIM, Oh Byong CHAE, Seo Young JEON, Seung Hae HWANG
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Publication number: 20230072109Abstract: A method of manufacturing a negative electrode wherein, in the pre-lithiation of a negative electrode structure including a negative electrode active material layer formed therein through electrochemical charging in a roll-to-roll manner, the negative electrode active material layer is divided into a central part and a side part. The charge current applied to the central part is higher than the charge current applied to the side part. In addition, in the method of manufacturing the negative electrode a pre-lithiation section is divided into a first section and a second section, the central part is electrochemically charged in the first section, the side part is electrochemically charged in the second section, and the central part and the side part are alternately electrochemically charged in one or more cycles.Type: ApplicationFiled: May 18, 2021Publication date: March 9, 2023Applicant: LG ENERGY SOLUTION, LTD.Inventors: Oh Byong CHAE, Ye Ri KIM, Su Yeon LEE, Seo Young JEON, Seung Hae HWANG
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Publication number: 20230073365Abstract: A method for pre-lithiation of a negative electrode including the steps of: interposing a separator between a lithium ion-supplying metal sheet and a negative electrode to prepare a simple cell; dipping the simple cell in an electrolyte for pre-lithiation; and disposing the simple cell dipped in the electrolyte for pre-lithiation between two polymer pads, and carrying out electrochemical charging, while pressurizing the outside of the two polymer pads, to perform pre-lithiation of the negative electrode. Each of the polymer pads has a thickness of 60% to 90% of a thickness of a corresponding jig of the pair of jigs. A pre-lithiated negative electrode and a lithium secondary battery including the pre-lithiated negative electrode are also disclosed.Type: ApplicationFiled: February 17, 2021Publication date: March 9, 2023Applicant: LG ENERGY SOLUTION, LTD.Inventors: Seo-Young JEON, Ye-Ri KIM, Su-Yeon LEE, Oh-Byong CHAE, Seung-Hae HWANG
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Publication number: 20230067792Abstract: A lithium secondary battery is disclosed herein. In some embodiments, a lithium secondary battery includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, where the negative electrode active material consists of a silicon-based material, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte solution, wherein the non-aqueous electrolyte solution includes a lithium salt including LiPF6 and LiN(FSO2)2, an additive including a sultone-based compound, and an organic solvent including a non-fluorine-based linear carbonate solvent and a fluorine-based cyclic carbonate solvent.Type: ApplicationFiled: September 2, 2021Publication date: March 2, 2023Applicant: LG Energy Solution, Ltd.Inventors: Hyun Seung Kim, Seung Hae Hwang, Chul Haeng Lee, Jeong Woo Oh
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Publication number: 20230066827Abstract: A method of manufacturing a negative electrode includes providing a negative electrode roll on which a negative electrode structure including a negative electrode current collector, a first negative electrode active material layer formed on one side of the negative electrode current collector, and a second negative electrode active material layer formed on the other side of the negative electrode current collector is wound, preparing a pre-lithiation bath including an impregnation section and a pre-lithiation section and containing a pre-lithiation solution, unwinding the negative electrode structure, moving the negative electrode structure to the impregnation section, and impregnating the negative electrode structure with the pre-lithiation solution; and pre-lithiating the negative electrode structure by moving the same from the impregnation section to the pre-lithiation section.Type: ApplicationFiled: March 23, 2021Publication date: March 2, 2023Applicant: LG ENERGY SOLUTION, LTD.Inventors: Oh Byong CHAE, Ye Ri KIM, Su Yeon LEE, Seo Young JEON, Seung Hae HWANG
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Publication number: 20230013715Abstract: The present invention relates to a secondary battery. The secondary battery according to the present invention may include an electrode assembly, an electrolyte, and a battery case configured to accommodate the electrode assembly and the electrolyte. The battery case may include a main body having accommodation space in which the electrode assembly and the electrolyte are accommodated, an additional electrolyte accommodation part having a storage space in which an additional electrolyte is accommodated, a connection part configured to form a moving passage through which the additional electrolyte is supplied from the addition electrolyte accommodation part to the main body, and an electrolyte impregnation member provided on the connection part and impregnated with the additional electrolyte.Type: ApplicationFiled: January 11, 2021Publication date: January 19, 2023Applicant: LG Energy Solution, Ltd.Inventors: Oh Byong Chae, Ye Ri Kim, Su Yeon Lee, Seo Young Jeon, Seung Hae Hwang
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Publication number: 20230006187Abstract: An apparatus for pre-lithiating a negative includes a pre-lithiation reactor sequentially divided into an impregnation section, a pre-lithiation section and an aging section, and accommodates a pre-lithiation solution in which a negative electrode structure is moved; a negative electrode roll arranged outside the pre-lithiation solution and on which the negative electrode structure before being moved is wound; a lithium metal counter electrode arranged in the pre-lithiation solution in the pre-lithiation section and is spaced apart from the negative electrode structure by a predetermined distance to face the negative electrode structure which is moved in the pre-lithiation solution; and a charge and discharge unit connected to the negative electrode structure and the lithium metal counter electrode, in which a separation distance between the lithium metal counter electrode and the negative electrode structure is in a range of 7 to 15 mm. A method for pre-lithiating the negative electrode is also provided.Type: ApplicationFiled: September 3, 2021Publication date: January 5, 2023Applicant: LG ENERGY SOLUTION, LTD.Inventors: Seo Young JEON, Ye Ri KIM, Oh Byong CHAE, Seung Hae HWANG
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Publication number: 20220393144Abstract: An apparatus for pre-lithiating a negative electrode includes a pre-lithiation reactor having a pre-lithiation solution accommodated therein, a high-pressure chamber surrounding the pre-lithiation reactor, wherein an internal air pressure of the high-pressure chamber is configured to exceed atmospheric pressure, at least one lithium metal counter electrode disposed in the pre-lithiation solution, the lithium metal counter electrode being disposed to face a negative electrode receivable in the pre-lithiation solution in a state that the lithium metal counter electrode is spaced apart from the negative electrode by a predetermined interval, and a charge and discharge unit being connectable to the negative electrode and the lithium metal counter electrode to provide a circuit.Type: ApplicationFiled: August 13, 2021Publication date: December 8, 2022Applicant: LG ENERGY SOLUTION, LTD.Inventors: Seung Hae HWANG, Ye Ri KIM, Su Yeon LEE, Oh Byong CHAE, Seo Young JEON