Patents by Inventor Hyun-Jun Choi
Hyun-Jun 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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Publication number: 20220393303Abstract: A method of manufacturing a lithium secondary battery, which includes coating a slurry for forming a porous coating layer on a porous polymer substrate and drying the porous coating layer under a humidified condition to form a preliminary separator; forming an electrode assembly, wherein the preliminary separator is interposed between a positive electrode and a negative electrode, placing the electrode assembly into a battery case and injecting an electrolytic solution into the battery case; and thermally treating the electrode assembly. A lithium secondary battery manufactured by the method is also provided. Accordingly, the separator has significantly improved ionic conductivity compared to separators commonly used in the art.Type: ApplicationFiled: December 18, 2020Publication date: December 8, 2022Applicant: LG ENERGY SOLUTION, LTD.Inventors: Hyun-Jun CHOI, Dae-Soo KIM, Young-Deok KIM, Seok-Koo KIM
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Patent number: 11450894Abstract: A lithium metal secondary battery including: an electrode assembly including a positive electrode, a lithium metal negative electrode, a separator interposed between the positive electrode and the lithium metal negative electrode, a protective layer interposed between the lithium metal negative electrode and the separator; and a non-aqueous electrolyte injected to the electrode assembly, wherein the protective layer includes a polymer having a sulfur chain group. A battery module including the lithium metal secondary battery is also disclosed.Type: GrantFiled: May 10, 2019Date of Patent: September 20, 2022Assignees: LG ENERGY SOLUTION, LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jong-Keon Yoon, Kyung-Hwa Woo, Hyun-Jun Choi, Hye-Jin Lee, Hoe-Jin Hah, Hee-Tak Kim, Young-Il Roh, Hyun-Soo Jin
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Publication number: 20220294024Abstract: Discussed is a method for manufacturing a secondary battery, the method including an operation (a) of alternately stacking an electrode and a separator to manufacture an electrode assembly; an operation (b) of laminating the electrode assembly at a pressure of 5 kgf/cm2 or more to bond the electrode and the separator, which are provided in the electrode assembly, to each other; an operation (c) of accommodating the electrode assembly in a battery case and injecting an electrolyte into the battery case to seal the battery case, thereby manufacturing a preliminary battery; an operation (d) of charging and discharging the preliminary battery to activate the preliminary battery; and an operation (e) of aging the preliminary battery at a high temperature of 60° C. to 100° C. for 1 hour to 6 hours to thermally treat the preliminary battery.Type: ApplicationFiled: July 1, 2020Publication date: September 15, 2022Applicant: LG ENERGY SOLUTION, LTD.Inventors: Hyun Jun CHOI, Soon Ju CHOI, Seok Koo KIM, Young Deok KIM, Dae Soo KIM
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Publication number: 20220278540Abstract: A battery charge and discharge control device according to an embodiment of the present disclosure includes a state-of-charge (SOC) measurer measuring a SOC of a battery and a charge and discharge controller controlling a charging speed of the battery in response to the SOC of the battery being included in a preset SOC section, and the preset SOC section has change in resistance or a change in potential due to ions inserted into a material constituting the battery equal to or greater than a reference value.Type: ApplicationFiled: January 29, 2021Publication date: September 1, 2022Applicant: LG ENERGY SOLUTION, LTD.Inventors: Young Deok KIM, Dae Soo KIM, Hyun Jun CHOI
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Patent number: 11164925Abstract: A display device includes: a first substrate including: a display area including a plurality of pixels, and a peripheral area positioned around the display area; a thin film transistor positioned on the first substrate; a pixel electrode layer positioned on the thin film transistor and including more than one pixel electrodes positioned in the display area; and a pixel definition layer positioned on the pixel electrode layer and including a peripheral portion overlapping a voltage transmission electrode. The peripheral portion includes a spacer and an inclination portion connected to the spacer and positioned at a first side of the spacer, and the inclination portion has a concave inclination surface.Type: GrantFiled: March 27, 2019Date of Patent: November 2, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae Kyung Go, Eun Jae Na, Min Jun Jo, Hyun-Jun Choi
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Publication number: 20210281182Abstract: Disclosed are a phase current control device for a DAB converter and a method therefor. The device includes a DAB converter having at least one leg including a switching element, a phase current measuring unit for measuring a phase current for each of the legs, and a phase current phase controller for performing phase control by setting one of the phase currents of the respective legs as a reference phase current, comparing each of the other phase currents with the reference phase current to derive a phase difference for each of the phase currents, and compensating each of the phase currents for a corresponding one of the phase differences.Type: ApplicationFiled: November 11, 2016Publication date: September 9, 2021Inventors: Jae-Han KIM, Ju-Yong KIM, Jin-Tae CHO, Young-Pyo CHO, Jee-Hoon JUNG, Hyun-Jun CHOI
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Patent number: 10861625Abstract: An electronic component and a manufacturing method thereof are disclosed. An electronic component includes a substrate, a conductor pattern portion disposed on the substrate, a first electrode pattern and a second electrode pattern disposed on the conductor pattern portion, and at least one dummy electrode pattern disposed to be spaced apart from the first electrode pattern and the second electrode pattern and disposed on the substrate. A width of the first electrode pattern is substantially the same as a width of a portion of the conductor pattern portion in contact with the first electrode pattern, and a width of the second electrode pattern is substantially the same as a width of a portion of the conductor pattern portion in contact with the second electrode pattern.Type: GrantFiled: March 12, 2019Date of Patent: December 8, 2020Assignee: SAMSUNG ELECTRO-MECHANICS CO LTDInventors: Jong Pil Lee, Ichiro Tanaka, Doo Ho Yoo, Hyun Jun Choi, Hyung Gon Kim, Hyung Seok Roh, Jung Il Kim
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Patent number: 10734141Abstract: An electronic component and a manufacturing method thereof are disclosed. The electronic component includes a substrate, a conductor pattern portion disposed on the substrate, a first electrode pattern and a second electrode pattern disposed on the conductor pattern portion, at least one dummy conductor pattern disposed to be spaced apart from the conductor pattern portion and disposed on the substrate, and at least one dummy electrode pattern disposed on the at least one dummy conductor pattern. A width of the first electrode pattern is substantially the same as a width of a portion of the conductor pattern portion in contact with the first electrode pattern, and a width of the second electrode pattern is substantially the same as a width of a portion of the conductor pattern portion in contact with the second electrode pattern.Type: GrantFiled: March 11, 2019Date of Patent: August 4, 2020Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jong Pil Lee, Doo Ho Yoo, Hyung Gon Kim, Jung Il Kim, Hyun Jun Choi, Hyung Seok Roh
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Publication number: 20200243919Abstract: A lithium metal secondary battery including: an electrode assembly including a positive electrode, a lithium metal negative electrode, a separator interposed between the positive electrode and the lithium metal negative electrode, a protective layer interposed between the lithium metal negative electrode and the separator; and a non-aqueous electrolyte injected to the electrode assembly, wherein the protective layer includes a polymer having a sulfur chain group. A battery module including the lithium metal secondary battery is also disclosed.Type: ApplicationFiled: May 10, 2019Publication date: July 30, 2020Applicants: LG CHEM, LTD., Korea Advanced Institute of Science and TechnologyInventors: Jong-Keon YOON, Kyung-Hwa WOO, Hyun-Jun CHOI, Hye-Jin LEE, Hoe-Jin HAH, Hee-Tak KIM, Young-Il ROH, Hyun-Soo JIN
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Publication number: 20200227694Abstract: Provided is a casing for a lithium metal secondary battery including: a battery casing material; at least one releasable capsule attached at least partially or totally to the inner surface of the casing material to cover the inner surface of the casing material; and a release solution supported in the releasable capsule, wherein the releasable capsule includes a capsule coating film and a capsule inner space surrounded with the capsule coating film, the release solution is supported in the capsule inner space, and the release solution includes a release agent and a solvent. A lithium metal secondary battery including the casing and a method for manufacturing the same are also provided. It is possible to increase releasability of the negative electrode in a lithium metal secondary battery and to improve nail safety by using the releasable capsule according to the present disclosure.Type: ApplicationFiled: May 7, 2019Publication date: July 16, 2020Applicant: LG CHEM, LTD.Inventors: Hyun-Woong YUN, Jong-Keon YOON, Hyun-Jun CHOI
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Publication number: 20200090841Abstract: An electronic component and a manufacturing method thereof are disclosed. The electronic component includes a substrate, a conductor pattern portion disposed on the substrate, a first electrode pattern and a second electrode pattern disposed on the conductor pattern portion, at least one dummy conductor pattern disposed to be spaced apart from the conductor pattern portion and disposed on the substrate, and at least one dummy electrode pattern disposed on the at least one dummy conductor pattern. A width of the first electrode pattern is substantially the same as a width of a portion of the conductor pattern portion in contact with the first electrode pattern, and a width of the second electrode pattern is substantially the same as a width of a portion of the conductor pattern portion in contact with the second electrode pattern.Type: ApplicationFiled: March 11, 2019Publication date: March 19, 2020Inventors: Jong Pil Lee, Doo Ho Yoo, Hyung Gon Kim, Jung Il Kim, Hyun Jun Choi, Hyung Seok Roh
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Publication number: 20200090842Abstract: An electronic component and a manufacturing method thereof are disclosed. An electronic component includes a substrate, a conductor pattern portion disposed on the substrate, a first electrode pattern and a second electrode pattern disposed on the conductor pattern portion, and at least one dummy electrode pattern disposed to be spaced apart from the first electrode pattern and the second electrode pattern and disposed on the substrate. A width of the first electrode pattern is substantially the same as a width of a portion of the conductor pattern portion in contact with the first electrode pattern, and a width of the second electrode pattern is substantially the same as a width of a portion of the conductor pattern portion in contact with the second electrode pattern.Type: ApplicationFiled: March 12, 2019Publication date: March 19, 2020Inventors: Jong Pil Lee, Ichiro Tanaka, Doo Ho Yoo, Hyun Jun Choi, Hyung Gon Kim, Hyung Seok Roh, Jung Il Kim
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Publication number: 20190221625Abstract: A display device includes: a first substrate including: a display area including a plurality of pixels, and a peripheral area positioned around the display area; a thin film transistor positioned on the first substrate; a pixel electrode layer positioned on the thin film transistor and including more than one pixel electrodes positioned in the display area; and a pixel definition layer positioned on the pixel electrode layer and including a peripheral portion overlapping a voltage transmission electrode. The peripheral portion includes a spacer and an inclination portion connected to the spacer and positioned at a first side of the spacer, and the inclination portion has a concave inclination surface.Type: ApplicationFiled: March 27, 2019Publication date: July 18, 2019Inventors: Jae Kyung Go, Eun Jae Na, Min Jun Jo, Hyun-Jun Choi
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Patent number: 10269881Abstract: A display device includes: a first substrate including: a display area including a plurality of pixels, and a peripheral area positioned around the display area; a thin film transistor positioned on the first substrate; a pixel electrode layer positioned on the thin film transistor and including more than one pixel electrodes positioned in the display area; and a pixel definition layer positioned on the pixel electrode layer and including a peripheral portion overlapping a voltage transmission electrode. The peripheral portion includes a spacer and an inclination portion connected to the spacer and positioned at a first side of the spacer, and the inclination portion has a concave inclination surface.Type: GrantFiled: September 22, 2015Date of Patent: April 23, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae Kyung Go, Eun Jae Na, Min Jun Jo, Hyun-Jun Choi
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Publication number: 20180361304Abstract: A scrubber system for removing odorous and/or harmful gases from polluted gases/air comprising a scrubber body, a blower to supply the polluted gas into the scrubber body under pressure enabling the supplied polluted gas to travel from lower portion of the scrubber body to upper portion of the scrubber body and one or more diffraction units provided with supply of wash solution accommodated inside of the scrubber body and disposed in pathway of the polluted gas within the scrubber body to diffract the polluted gases/air with the wash solution thereby to clean the polluted gases/air and discharge clean gases/air through a scrubber body outlet at its top.Type: ApplicationFiled: August 4, 2017Publication date: December 20, 2018Applicants: Kumho Environment Co., LtdInventors: Seung Uk CHOI, Hyun Jun CHOI
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Publication number: 20180361303Abstract: A scrubber system for removing odorous and/or harmful gases from polluted gases/air comprising a scrubber body, a blower to supply the polluted gas into the scrubber body under pressure enabling the supplied polluted gas to travel from lower portion of the scrubber body to upper portion of the scrubber body and one or more diffraction units provided with supply of wash solution accommodated inside of the scrubber body and disposed in pathway of the polluted gas within the scrubber body to diffract the polluted gases/air with the wash solution thereby to clean the polluted gases/air and discharge clean gases/air through a scrubber body outlet at its top.Type: ApplicationFiled: August 3, 2017Publication date: December 20, 2018Applicants: Kumho Environment Co., LtdInventors: Seung Uk CHOI, Hyun Jun CHOI
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Patent number: 9876221Abstract: Embodiments of the present invention are directed to negative active materials for lithium rechargeable batteries and to lithium rechargeable batteries including the negative active materials. The negative active material includes a crystalline carbon material having pores, and amorphous conductive nanoparticles in the pores, on the surface of the crystalline carbon, or both in the pores and on the surface of the crystalline carbon. The conductive nanoparticles have a FWHM of about 0.35 degrees (°) or greater at the crystal plane that produces the highest peak as measured by X-ray diffraction.Type: GrantFiled: May 3, 2011Date of Patent: January 23, 2018Assignee: Samsung SDI Co., Ltd.Inventors: Bong-Chull Kim, Cheol-Hee Hwang, Dong-Yung Kim, Se-Ho Park, Hyun-Jun Choi
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Patent number: 9853291Abstract: A negative electrode for a rechargeable lithium battery, including a negative active material layer including a polymer binder including a repeating unit represented by the following Chemical Formula 1 or the following Chemical Formula 2 and a Si-based negative active material; and a current collector supporting the negative active material layer, is provided: wherein in Chemical Formulae 1 and 2, R1 and R2 are the same or different and hydrogen, OH or OOH.Type: GrantFiled: December 15, 2011Date of Patent: December 26, 2017Assignee: Samsung SDI Co., Ltd.Inventors: Se-Ho Park, Bong-Chull Kim, Dong-Yung Kim, Cheol-Hee Hwang, Hyun-Jun Choi
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Publication number: 20160268356Abstract: A display device includes: a first substrate including: a display area including a plurality of pixels, and a peripheral area positioned around the display area; a thin film transistor positioned on the first substrate; a pixel electrode layer positioned on the thin film transistor and including more than one pixel electrodes positioned in the display area; and a pixel definition layer positioned on the pixel electrode layer and including a peripheral portion overlapping a voltage transmission electrode. The peripheral portion includes a spacer and an inclination portion connected to the spacer and positioned at a first side of the spacer, and the inclination portion has a concave inclination surface.Type: ApplicationFiled: September 22, 2015Publication date: September 15, 2016Inventors: Jae Kyung Go, Eun Jae Na, Min Jun Jo, Hyun-Jun Choi
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Patent number: 8785049Abstract: A negative active material for a rechargeable lithium battery includes a core including crystalline carbon, a metal nano particle and a MOx nano particle (where x is from 0.5 to 1.5, and M is Si, Sn, In, Al, or a combination thereof) disposed on the core surface, and a coating layer including an amorphous carbon surrounding the core surface, the metal nano particle and the MOx nano particle. A lithium rechargeable battery includes the negative active material.Type: GrantFiled: March 21, 2011Date of Patent: July 22, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Bong-Chull Kim, Cheol-Hee Hwang, Dong-Yung Kim, Se-Ho Park, Hyun-Jun Choi, In-Ho Jung, Su-Ho Song