Patents by Inventor Cheol-Nam Yang
Cheol-Nam Yang 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: 10276873Abstract: Provided are a current collector for a battery, including: a base material; adhesive layers positioned on the base material; and metal mesh layers positioned on the adhesive layers, in which the metal mesh layer includes a plurality of metal mesh patterns, and holes positioned between the metal mesh patterns, and a method of manufacturing the same. An active material is applied onto the metal mesh layer through the holes of the metal mesh layer, and thus a contact area of the metal mesh layer and the active material is increased, so that it is possible to restrict the active material from being deintercalated from the current collector and improve a cycle lifespan property of a battery.Type: GrantFiled: April 22, 2013Date of Patent: April 30, 2019Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Man Kim, Joo Yul Lee, Sang Yeoul Lee, Yong Soo Jeong, Do Yon Chang, Kyu Hwan Lee, Cheol Nam Yang, Chang Rae Lee, Seong Bong Yim, Dong Chan Lim, Jae Hong Lim, Young Sup Song, Sung Mo Moon, Su Sub Cha
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Patent number: 9406956Abstract: A closed loop type fuel cell system performs a removal function for an oxidant and a reductant, which are unreacted material, including a recirculating component for recirculating the oxidant and the reductant discharged from the main fuel cell back into the main fuel cell; and a regenerating component for removing moisture produced during the operation of the main fuel cell and impurities contained in the recirculated oxidant and reductant.Type: GrantFiled: April 15, 2011Date of Patent: August 2, 2016Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Cheol Nam Yang, Chang Rae Lee
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Patent number: 9112198Abstract: A closed loop type fuel cell system is provided including a recirculating unit that recirculates hydrogen and oxygen discharged from a main fuel cell into the main fuel cell and a reproducing unit that removes water produced in operation of the main fuel cell and impurities contained in the circulated hydrogen and oxygen. Further, a closed loop type fuel cell is provided that makes it possible to generate electricity by using a main fuel cell and purify water and impurities by allowing a side of a recirculating unit to selectively communicate with a side of a reproducing unit. Further, a closed loop type fuel cell is provided that is precluded by being damaged by precluding reduction of efficiency of electric generation of a main fuel cell by selectively replacing a sacrifice fuel cell in a reproducing unit.Type: GrantFiled: October 20, 2009Date of Patent: August 18, 2015Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Cheol Nam Yang, Yong-Soo Jeong, Chang Rae Lee, Sung-Mo Moon
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Publication number: 20150125756Abstract: Provided are a current collector for a battery, including: a base material; adhesive layers positioned on the base material; and metal mesh layers positioned on the adhesive layers, in which the metal mesh layer includes a plurality of metal mesh patterns, and holes positioned between the metal mesh patterns, and a method of manufacturing the same. An active material is applied onto the metal mesh layer through the holes of the metal mesh layer, and thus a contact area of the metal mesh layer and the active material is increased, so that it is possible to restrict the active material from being deintercalated from the current collector and improve a cycle lifespan property of a battery.Type: ApplicationFiled: April 22, 2013Publication date: May 7, 2015Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Man Kim, Joo Yul Lee, Sang Yeoul Lee, Yong Soo Jeong, Do Yon Chang, Kyu Hwan Lee, Cheol Nam Yang, Chang Rae Lee, Seong Bong Yim, Dong Chan Lim, Jae Hong Lim, Young Sup Song, Sung Mo Moon, Su Sub Cha
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Patent number: 8722258Abstract: An open type fuel cell system is provided including a recirculating unit that recirculates hydrogen discharged from a main fuel cell into the main fuel cell and a reproducing unit that removes water and impurities produced in operation of the main fuel cell. The open type fuel cell system is adapted so that it does not discharge hydrogen supplied to a main fuel cell into the atmosphere.Type: GrantFiled: October 20, 2009Date of Patent: May 13, 2014Assignee: Korea Institute of Machinery & MaterialsInventors: Cheol Nam Yang, Yong-Soo Jeong, Chang Rae Lee, Sung-Mo Moon
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Patent number: 8460833Abstract: An open type fuel cell system is provided. The fuel cell system can have an unreacted material removing function, including a main fuel cell reacting an oxidant and a reductant to generate electricity, a supply means supplying material containing an oxidant and a reductant for the main fuel cell, a recirculating means recirculating unreacted material, a detector detecting voltages, a regenerating means, a humidification means, an exhausting means, and a controller controlling actions of the supply means, the recirculating means, the detector, the regenerating means, the humidification means, and the exhausting means.Type: GrantFiled: September 17, 2010Date of Patent: June 11, 2013Assignee: Korea Institute of Machinery & MaterialsInventors: Cheol Nam Yang, Chang Rae Lee
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Patent number: 8420273Abstract: The present invention relates to a sealing structure for polymer electrolyte fuel cell, which comprises a bipolar plate with sealing groove to be filled with rubber using a dispenser, and a gasket interposed between the bipolar plate and a membrane electrode assembly. That is, according to the present invention, the thickness deviation in a gasket can be softened by interposing a gasket between a rubber ands a membrane electrode assembly after filling rubber in a sealing groove formed on a bipolar plate using a dispenser. Also, nonuniform stress distribution can be resolved because a gasket covers with a pressure despite the height deviation of rubber, and a stress is not directly transmitted to a membrane electrode assembly and dispersed by a gasket despite nonuniform stress distribution.Type: GrantFiled: June 23, 2003Date of Patent: April 16, 2013Assignee: Fuelcellpower Co., Ltd.Inventors: Ho-Suk Kim, Mee-Nam Shinn, Byung-Sun Hong, Sung-Jin Oh, Cheol-Nam Yang, Yong-Jung Seo
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Publication number: 20120171582Abstract: An open type fuel cell system is provided including a recirculating unit that recirculates hydrogen discharged from a main fuel cell into the main fuel cell and a reproducing unit that removes water and impurities produced in operation of the main fuel cell. The open type fuel cell system is adapted so that it does not discharge hydrogen supplied to a main fuel cell into the atmosphere.Type: ApplicationFiled: October 20, 2009Publication date: July 5, 2012Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Cheol Nam Yang, Yong-Soo Jeong, Chang Rae Lee, Sung-Mo Moon
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Publication number: 20120070751Abstract: A closed loop type fuel cell system is provided including a recirculating unit that recirculates hydrogen and oxygen discharged from a main fuel cell into the main fuel cell and a reproducing unit that removes water produced in operation of the main fuel cell and impurities contained in the circulated hydrogen and oxygen. Further, a closed loop type fuel cell is provided that makes it possible to generate electricity by using a main fuel cell and purify water and impurities by allowing a side of a recirculating unit to selectively communicate with a side of a reproducing unit. Further, a closed loop type fuel cell is provided that is precluded by being damaged by precluding reduction of efficiency of electric generation of a mina fuel cell by selectively replacing a sacrifice fuel cell in a reproducing unit.Type: ApplicationFiled: October 20, 2009Publication date: March 22, 2012Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Cheol Nam Yang, Yong-Soo Jeong, Chang Rae Lee, Sung-Mo Moon
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Publication number: 20110311890Abstract: Disclosed is an open type fuel cell system with an unreacted material removing function, including a main fuel cell reacting an oxidant and a reductant to generate electricity, a supply means supplying material containing an oxidant and a reductant for the main fuel cell, a recirculating means recirculating unreacted material discharged from a main fuel cell into the main fuel cell, a detector detecting voltages of a plurality of cells composing the main fuel cell, a regenerating means selectively communicating to one side of the main fuel cell to remove moisture and impurities inside the main fuel cell, a humidification means supplying moisture discharged from the main fuel cell into the main fuel cell, an exhausting means circulating and exhausting inside the regenerating means unreacted material remnant inside the regenerating means, and a controller controlling actions of the supply means, the recirculating means, the detector, the regenerating means, the humidification means, and the exhausting means.Type: ApplicationFiled: September 17, 2010Publication date: December 22, 2011Applicant: Korea Institute of Machinery & MaterialsInventors: Cheol Nam Yang, Chang Rae Lee
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Publication number: 20110294023Abstract: Disclosed herein is a closed loop type fuel cell system having a removal function for an oxidant and a reductant, which are unreacted material, including a recirculating means recirculating oxidant and reductant discharged from the main fuel cell back into the main fuel cell; and a regenerating means for removing moisture produced during the operation of the main fuel cell and impurities contained in the recirculated oxidant and reductant.Type: ApplicationFiled: April 15, 2011Publication date: December 1, 2011Applicant: Korea Institute of Machinery & MaterialsInventors: Cheol Nam Yang, Chang Rae Lee
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Publication number: 20060068263Abstract: The present invention relates to a sealing structure for polymer electrolyte fuel cell, which comprises a bipolar plate with sealing groove to be filled with rubber using a dispenser, and a gasket interposed between the bipolar plate and a membrane electrode assembly. That is, according to the present invention, the thickness deviation in a gasket can be softened by interposing a gasket between a rubber ands a membrane electrode assembly after filling rubber in a sealing groove formed on a bipolar plate using a dispenser. Also, nonuniform stress distribution can be resolved because a gasket covers with a pressure despite the height deviation of rubber, and a stress is not directly transmitted to a membrane electrode assembly and dispersed by a gasket despite nonuniform stress distribution.Type: ApplicationFiled: June 23, 2003Publication date: March 30, 2006Inventors: Ho-Suk Kim, Mee-Nam Shinn, Byung-Sun Hong, Sung-Jin Oh, Cheol-Nam Yang, Yong-Jung Seo