Patents by Inventor Myeong-hyo Kim
Myeong-hyo Kim 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: 20240136502Abstract: Disclosed is a positive electrode for a lithium-sulfur battery, including a sulfur-carbon composite as a positive electrode active material. The sulfur-carbon composite includes a porous carbonaceous material having a high specific surface area, and the total pore volume in the carbonaceous material and a volume of pores having a specific diameter are controlled to specific ranges. Also disclosed is a lithium-sulfur battery using the sulfur-carbon composite. The lithium-sulfur battery shows reduced initial irreversible capacity and improved output characteristics and life characteristics.Type: ApplicationFiled: October 30, 2022Publication date: April 25, 2024Inventors: In-Tae PARK, Yong-Hwi KIM, Seong-Hyo PARK, Myeong-Jun SONG, Hyun-Soo LEE, Ran CHOI
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Publication number: 20240113297Abstract: A positive electrode for a lithium-sulfur battery is provided. The positive electrode includes a positive electrode active material comprising a first and second sulfur-carbon composites respectively comprising a first and a second carbonaceous materials having a different specific surface area and pore volume from each other, and provides reduced initial irreversible capacity and improved output characteristics and life characteristics of a secondary battery.Type: ApplicationFiled: October 31, 2022Publication date: April 4, 2024Inventors: In-Tae PARK, Yong-Hwi KIM, Seong-Hyo PARK, Myeong-Jun SONG, Hyun-Soo LEE, Ran CHOI
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Publication number: 20240079588Abstract: A method for preparing a sulfur-carbon composite including a step of pretreating a carbon material is provided. The method is capable of removing water and other impurities from the carbon material effectively, and the sulfur-carbon composite obtained by the method used as a positive electrode active material of a lithium-sulfur battery provides improved sulfur supportability and over-voltage performance of the lithium-sulfur battery, reduced initial irreversible capacity of the positive electrode active material, and improved output characteristics and life characteristics.Type: ApplicationFiled: October 28, 2022Publication date: March 7, 2024Inventors: In-Tae Park, Myeong-Jun Song, Yong-Hwi Kim, Seong-Hyo Park, Hyun-Soo Lee, Ran Choi
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Patent number: 10273882Abstract: There is provided a gas turbine system including: a compressing portion; a combustor generating a combustion operation by using first compressed air coming from the compressing portion; a turbine portion generating power by using a combustion gas coming from the combustor; a heat recoverer recovering a heat from a discharge gas of the turbine portion; and a compressed air supplier providing second compressed air to which the heat recovered by the heat recoverer is transferred, wherein at least a portion of the second compressed air to which the heat has been transferred is supplied to at least one of the combustor and the turbine portion.Type: GrantFiled: June 25, 2014Date of Patent: April 30, 2019Assignee: HANWHA AEROSPACE CO., LTD.Inventor: Myeong Hyo Kim
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Patent number: 9435223Abstract: Provided is a gas turbine apparatus including: a turbine unit comprising an output shaft; a cooling gas generation unit, comprising a rotation shaft, which receives power from the output shaft through the rotation shaft and generates a compressed cooling gas; a first duct unit which transfers the generated compressed cooling gas to the turbine unit; a clutch unit which controls a power transfer connection between the output shaft and the rotation shaft; and a control unit which controls the transferring of the generated compressed cooling gas.Type: GrantFiled: May 17, 2013Date of Patent: September 6, 2016Assignee: Hanwha Techwin Co., Ltd.Inventor: Myeong-hyo Kim
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Patent number: 9422948Abstract: There is provided an energy storage system. The system includes a storage tank, a reservoir connected to the storage tank configured to store fluid and exchange the stored fluid with the storage tank, at least one path configured to transfer the stored fluid between the storage tank and the reservoir, a pump configured to inject the stored fluid into the storage tank and compress air in the storage tank, and a generator configured to generate electricity by using the injected fluid transferred from the storage tank to the reservoir.Type: GrantFiled: June 18, 2013Date of Patent: August 23, 2016Assignee: Hanwha Techwin Co., Ltd.Inventors: Myeong-hyo Kim, Jong-sub Shin, Young-Chang Shon
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Publication number: 20160177955Abstract: Provided is a compressor system. The compressor system includes: compressors receiving a first fluid from outside and compressing the first fluid; a motor receiving an electric current from outside to drive the compressors; a gear unit for connecting the compressors to the motor; a turbine generating a driving power from a second fluid that has exchanged heat with the first fluid that is discharged from the compressors; and a connection unit directly connected to the turbine and the gear unit.Type: ApplicationFiled: November 7, 2013Publication date: June 23, 2016Applicant: HANWHA TECHWIN CO., LTD.Inventors: Seong Woo PAIK, Myeong Hyo KIM
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Publication number: 20160169106Abstract: There is provided a gas turbine system including: a compressing portion; a combustor generating a combustion operation by using first compressed air coming from the compressing portion; a turbine portion generating power by using a combustion gas coming from the combustor; a heat recoverer recovering a heat from a discharge gas of the turbine portion; and a compressed air supplier providing second compressed air to which the heat recovered by the heat recoverer is transferred, wherein at least a portion of the second compressed air to which the heat has been transferred is supplied to at least one of the combustor and the turbine portion.Type: ApplicationFiled: June 25, 2014Publication date: June 16, 2016Applicant: Hanwha Techwin Co., Ltd.Inventor: Myeong Hyo KIM
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Patent number: 9249728Abstract: A power generation system includes a compression unit which compresses a gas, a storage which stores the compressed gas output from the compression unit, a first expansion unit which generates first power and outputs a first exhaust gas, a heating unit which heats at least the stored gas output from the storage, a second expansion unit which generates second power and outputs a second exhaust gas, a first regenerator which performs a first heat exchange between the second exhaust gas and the stored gas output from the storage, to generate a first heat exchange gas used to generate the first power and a first regenerator gas, and a second regenerator which performs a second heat exchange between the first exhaust gas and the first regenerator gas to generate a second heat exchange gas used to generate the second power after heated at the heating unit.Type: GrantFiled: May 10, 2012Date of Patent: February 2, 2016Assignee: Hanwha Techwin Co., Ltd.Inventors: Chan-Sun Lim, Myeong-Hyo Kim, Jong-Sub Shin, Young-Chang Shon, Jeong-Hun Lee
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Patent number: 8745991Abstract: A turbine system includes a compressor unit which compresses a fluid; a combustor unit which burns fuel with the compressed fluid; a turbine unit which is driven due to a combustion gas that is generated when the combustor unit burns the fuel; and a first device which receives power that is generated when the turbine unit is driven. The at least one compressor unit operates using at least the generated power, and is separately disposed from at least one of the turbine unit and the first device.Type: GrantFiled: July 7, 2010Date of Patent: June 10, 2014Assignee: Samsung Techwin Co., Ltd.Inventors: Myeong-hyo Kim, Min-seok Ko, Jong-sub Shin
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Publication number: 20140030067Abstract: Provided is a gas turbine apparatus including: a turbine unit comprising an output shaft; a cooling gas generation unit, comprising a rotation shaft, which receives power from the output shaft through the rotation shaft and generates a compressed cooling gas; a first duct unit which transfers the generated compressed cooling gas to the turbine unit; a clutch unit which controls a power transfer connection between the output shaft and the rotation shaft; and a control unit which controls the transferring of the generated compressed cooling gas.Type: ApplicationFiled: May 17, 2013Publication date: January 30, 2014Applicant: SAMSUNG TECHWIN CO, LTD.Inventor: Myeong-hyo KIM
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Publication number: 20140026547Abstract: There is provided an energy storage system. The system includes a storage tank, a reservoir connected to the storage tank configured to store fluid and exchange the stored fluid with the storage tank, at least one path configured to transfer the stored fluid between the storage tank and the reservoir, a pump configured to inject the stored fluid into the storage tank and compress air in the storage tank, and a generator configured to generate electricity by using the injected fluid transferred from the storage tank to the reservoir.Type: ApplicationFiled: June 18, 2013Publication date: January 30, 2014Inventors: Myeong-hyo KIM, Jong-sub SHIN, Young-Chang SHON
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Publication number: 20130001948Abstract: A power generation system includes a compression unit which compresses a gas, a storage which stores the compressed gas output from the compression unit, a first expansion unit which generates first power and outputs a first exhaust gas, a heating unit which heats at least the stored gas output from the storage, a second expansion unit which generates second power and outputs a second exhaust gas, a first regenerator which performs a first heat exchange between the second exhaust gas and the stored gas output from the storage, to generate a first heat exchange gas used to generate the first power and a first regenerator gas, and a second regenerator which performs a second heat exchange between the first exhaust gas and the first regenerator gas to generate a second heat exchange gas used to generate the second power after heated at the heating unit.Type: ApplicationFiled: May 10, 2012Publication date: January 3, 2013Applicant: SAMSUNG TECHWIN CO., LTD.Inventors: Chan-Sun LIM, Myeong-Hyo KIM, Jong-Sub SHIN, Young-Chang SHON, Jeong-Hun LEE
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Publication number: 20110225977Abstract: A turbine system includes a compressor unit which compresses a fluid; a combustor unit which burns fuel with the compressed fluid; a turbine unit which is driven due to a combustion gas that is generated when the combustor unit burns the fuel; and a first device which receives power that is generated when the turbine unit is driven. The at least one compressor unit operates using at least the generated power, and is separately disposed from at least one of the turbine unit and the first device.Type: ApplicationFiled: July 7, 2010Publication date: September 22, 2011Applicant: SAMSUNG TECHWIN CO., LTD.Inventors: Myeong-hyo KIM, Min-seok KO, Jong-sub SHIN
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Patent number: 6305172Abstract: A scroll for a gas turbine having a compressor for generating compressed air and a combustor for receiving the compressed air and generating combustion gas of high temperature, the scroll includes a scroll main body having a predetermined space in which the combustion gas of high temperature supplied by the combustor can flow; and a scroll housing encompassing the scroll main body and separated a predetermined distance therefrom, wherein a path through which compressed air flows is formed between the scroll main body and the scroll housing, and the compressed air flows in the path, wherein one end of the path is connected to an outlet of the compressor and the other end thereof is open toward the combustor. Thus, as the amount of air flowing to cool the scroll sharply increases, an increase in the temperature of the scroll is prevented and the efficiency of cooling and durability of the scroll can be improved.Type: GrantFiled: February 7, 2000Date of Patent: October 23, 2001Assignee: Samsung Aerospace Industries, Ltd.Inventor: Myeong-hyo Kim