Patents by Inventor Myoung Hun Lee
Myoung Hun Lee 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: 20240140078Abstract: A textile fabric includes a textile fabric layer, a transparent film layer provided on the textile fabric layer, and a surface layer disposed on the transparent film layer. The transparent film layer has a two-layer structure including a first film layer having a first polyetherester-based copolymer and a second film layer having a second polyetherester-based copolymer disposed on the first film layer. The second film layer is provided on the textile fabric layer. A method of manufacturing the fabric includes preparing the textile fabric layer, forming the transparent film layer on the fabric layer, and laminating the textile fabric and transparent film layers through heat treatment.Type: ApplicationFiled: June 16, 2023Publication date: May 2, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, TKG ECO MATERIAL CO., LTD.Inventors: Hyun Dae Cho, Myoung Ryoul Lee, Seul Yi, Gu Hwan Kim, Jin Hun Cha
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Patent number: 9178252Abstract: Disclosed is a sealed structure for an electrochemical device having a hollow space therein, further comprising a material generating gases via thermal decomposition in the hollow space. Also, disclosed is an electrochemical device comprising a cathode, an anode, a separator, an electrolyte, a casing for the device, and the structure for the electrochemical device.Type: GrantFiled: May 14, 2015Date of Patent: November 3, 2015Assignee: LG Chem, Ltd.Inventors: Young-Sun Park, Myoung-Hun Lee, Pil-Kyu Park, Eun-Ju Kang
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Publication number: 20150249276Abstract: Disclosed is a sealed structure for an electrochemical device having a hollow space therein, further comprising a material generating gases via thermal decomposition in the hollow space. Also, disclosed is an electrochemical device comprising a cathode, an anode, a separator, an electrolyte, a casing for the device, and the structure for the electrochemical device.Type: ApplicationFiled: May 14, 2015Publication date: September 3, 2015Applicant: LG CHEM, LTD.Inventors: Young-Sun Park, Myoung-Hun Lee, Pil-Kyu Park, Eun-Ju Kang
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Patent number: 9070955Abstract: Disclosed is a sealed structure for an electrochemical device having a hollow space therein, further comprising a material generating gases via thermal decomposition in the hollow space. Also, disclosed is an electrochemical device comprising a cathode, an anode, a separator, an electrolyte, a casing for the device, and the structure for the electrochemical device.Type: GrantFiled: August 24, 2007Date of Patent: June 30, 2015Assignee: LG Chem, Ltd.Inventors: Young-Sun Park, Myoung-Hun Lee, Pil-Kyu Park, Eun-Ju Kang
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Patent number: 8974937Abstract: Disclosed is the structure of a center pin inserted into the winding center of a winding-type electrode assembly of an electrochemical device, which has a case containing the winding-type electrode assembly. The center pin can be manufactured through a simple process and can secure the safety of an electrochemical device when physical impact (e.g. squeezing, shock) is applied from the outside or when the internal temperature rises. The center pin is manufactured by winding a planar substrate, which has at least two protrusions formed in an embossing type or which has at least two scores formed in a predetermined shape, into a tubular shape.Type: GrantFiled: October 22, 2007Date of Patent: March 10, 2015Assignee: LG Chem, Ltd.Inventors: Young-Sun Park, Byung-Hun Oh, Pil-Kyu Park, Yong-Tae Lee, Jae-Won Lee, Myoung-Hun Lee
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Patent number: 8765305Abstract: The present invention relates to a cathode active material for a lithium secondary battery and a process for preparing the same. In accordance with the present invention, the cathode active material having a high packing density was designed and synthesized and thus provided is a cathode active material for a lithium secondary battery exhibiting structural stability such as improved characteristics for charge/discharge, service life and high-rate and thermal stability, by modifying surface of the electrode active material with amphoteric or basic compounds capable of neutralizing acid produced around the cathode active material.Type: GrantFiled: November 17, 2004Date of Patent: July 1, 2014Assignee: Industry-University Cooperation Foundation, Hanyang UniversityInventors: Yang Kook Sun, Myoung Hun Lee, Yoon Jung Kang, Gil Ho Kim
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Patent number: 8039135Abstract: Disclosed is the structure of a center pin assembly inserted into the winding center of a winding-type electrode assembly of an electrochemical device, which has a case containing the winding-type electrode assembly. The center pin assembly can secure the safety of an electrochemical device when physical impact (e.g. squeezing, shock) is applied from the outside, when the internal temperature rises, and/or when the device is overcharged. The center pin assembly includes a center pin manufactured by winding a planar substrate into a tubular shape, the planar substrate having at least two protrusions formed in an embossing type or at least two discontinuous scores formed in a predetermined shape; and a container placed in a space inside the center pin, the container containing a substance capable of improving the safety of the device.Type: GrantFiled: October 22, 2007Date of Patent: October 18, 2011Assignee: LG Chem, Ltd.Inventors: Young-Sun Park, Myoung-Hun Lee, Pil-Kyu Park, Eun-Ju Kang
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Patent number: 7833648Abstract: Disclosed is an electrochemical device including a gas discharge member disposed in inner volumes thereof or used as an element for forming the device, wherein the gas discharge member comprises: (a) a core portion containing a compound that discharges gases other than oxygen at a predetermined temperature range; and (b) a polymeric shell portion for encapsulating the compound and surrounding the core portion. A center pin for an electrochemical device having the gas discharge member inserted into the interstitial volumes of the device is also disclosed. The electrochemical device comprising the gas discharge member, which discharges a large amount of gas at a predetermined temperature and is inserted into the inner volumes of the device, is prevented from ignition or explosion under overcharge and high-temperature storage conditions with no drop in the performance.Type: GrantFiled: July 27, 2007Date of Patent: November 16, 2010Assignee: LG Chem, Ltd.Inventors: Young Sun Park, Myoung Hun Lee, Pil Kyu Park, Eun Ju Kang, Gi Cheul Kim
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Publication number: 20100261042Abstract: Disclosed is a sealed structure for an electrochemical device having a hollow space therein, further comprising a material generating gases via thermal decomposition in the hollow space. Also, disclosed is an electrochemical device comprising a cathode, an anode, a separator, an electrolyte, a casing for the device, and the structure for the electrochemical device.Type: ApplicationFiled: August 24, 2007Publication date: October 14, 2010Applicant: LG Chem LtdInventors: Young-Sun Park, Myoung-Hun Lee, Pil-Kyu Park, Eun-Ju Kang
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Publication number: 20100112445Abstract: The present invention provides a cathode comprising two or more lithium-containing metal composite oxides, having different potentials versus lithium (Li/Li+) and different impedances, the cathode comprising: (a) a first lithium-containing metal composite oxide; and (b) a second lithium-containing metal composite oxide, which has a high impedance and low potential versus lithium (Li/Li+), compared to those of the first lithium-containing metal composite oxide. In the invention, two or more lithium-containing metal composite oxides are used in combination as cathode components in a battery, whereby, when a short circuit occurs in the battery, the instantaneous flow of a large amount of current can be minimized and, at the same time, the accumulation of heat in the battery can be reduced, thus ensuring the safety of the battery.Type: ApplicationFiled: January 16, 2008Publication date: May 6, 2010Applicant: LG CHEM, LTD.Inventors: Pil-Kyu Park, Young-Sun Park, Byung-Hun Oh, Ki-Tae Kim, Myoung-Hun Lee, Jae-Won Lee
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Publication number: 20100035131Abstract: Disclosed is the structure of a center pin inserted into the winding center of a winding-type electrode assembly of an electrochemical device, which has a case containing the winding-type electrode assembly. The center pin can be manufactured through a simple process and can secure the safety of an electrochemical device when physical impact (e.g. squeezing, shock) is applied from the outside or when the internal temperature rises. The center pin is manufactured by winding a planar substrate, which has at least two protrusions formed in an embossing type or which has at least two scores formed in a predetermined shape, into a tubular shape.Type: ApplicationFiled: October 22, 2007Publication date: February 11, 2010Applicant: LG CHEM, LTD.Inventors: Young-Sun Park, Byung-Hun Oh, Pil-Kyu Park, Yong-Tae Lee, Jae-Won Lee, Myoung-Hun Lee
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Publication number: 20100021801Abstract: Disclosed is the structure of a center pin assembly inserted into the winding center of a winding-type electrode assembly of an electrochemical device, which has a case containing the winding-type electrode assembly. The center pin assembly can secure the safety of an electrochemical device when physical impact (e.g. squeezing, shock) is applied from the outside, when the internal temperature rises, and/or when the device is overcharged. The center pin assembly includes a center pin manufactured by winding a planar substrate into a tubular shape, the planar substrate having at least two protrusions formed in an embossing type or at least two discontinuous scores formed in a predetermined shape; and a container placed in a space inside the center pin, the container containing a substance capable of improving the safety of the device.Type: ApplicationFiled: October 22, 2007Publication date: January 28, 2010Applicant: LG CHEM, LTD.Inventors: Young-Sun Park, Myoung-Hun Lee, Pil-Kyu Park, Eun-Ju Kang
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Publication number: 20080026283Abstract: Disclosed is an electrochemical device including a gas discharge member disposed in inner volumes thereof or used as an element for forming the device, wherein the gas discharge member comprises: (a) a core portion containing a compound that discharges gases other than oxygen at a predetermined temperature range; and (b) a polymeric shell portion for encapsulating the compound and surrounding the core portion. A center pin for an electrochemical device having the gas discharge member inserted into the interstitial volumes of the device is also disclosed. The electrochemical device comprising the gas discharge member, which discharges a large amount of gas at a predetermined temperature and is inserted into the inner volumes of the device, is prevented from ignition or explosion under overcharge and high-temperature storage conditions with no drop in the performance.Type: ApplicationFiled: July 27, 2007Publication date: January 31, 2008Applicant: LG CHEM, LTD.Inventors: Young Sun PARK, Myoung Hun LEE, Pil Kyu PARK, Eun Ju KANG, Gi Cheul KIM