Patents by Inventor Ji-Seong Han
Ji-Seong Han 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: 8133622Abstract: A fuel cell system is provided comprising: a reformer for generating hydrogen from hydrogen-containing fuel; and at least one electricity generator for generating electric energy through an electrochemical reaction of hydrogen and oxygen. The reformer includes a main body in which a plurality of reaction sections for generating hydrogen from hydrogen-containing fuel is integrally formed. A heating section is disposed in contact with the main body in order to supply different amounts of thermal energy to the plurality of reaction sections.Type: GrantFiled: August 31, 2005Date of Patent: March 13, 2012Assignee: Samsung SDI Co., Ltd.Inventors: Zin Park, Ju-Yong Kim, Ji-Seong Han, Hyun-Jeong Lim, Eun-Suk Cho, Ho-Jin Kweon
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Patent number: 8053119Abstract: There is provided a fuel cell system comprising: a stack for generating electric energy through a reaction between hydrogen and oxygen; a reformer for generating hydrogen from fuel through a catalytic reaction of the fuel using thermal energy and for supplying the generated hydrogen to the stack; a fuel supply unit for supplying the fuel to the reformer; and an oxygen supply unit for supplying oxygen to the reformer and the stack.Type: GrantFiled: May 26, 2005Date of Patent: November 8, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Ju-Yong Kim, Hyun-Jeong Lim, Ji-Seong Han, Zin Park, Eun-Suk Cho
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Patent number: 8043389Abstract: A fuel cell system includes a reformer for reforming fuel and generating hydrogen gas. A stack generates electricity through an electrochemical reaction between the hydrogen gas and oxygen. A fuel supply unit supplies fuel to the reformer. An air supply unit supplies air to the reformer and the stack. The reformer includes a reformation reactor unit for generating the hydrogen gas and a heat-insulating unit including a vacuum area covering the reformation reactor unit and recovering heat generated from the reformation unit.Type: GrantFiled: February 26, 2005Date of Patent: October 25, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Ju-Yong Kim, Ji-Seong Han
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Patent number: 7846594Abstract: There is provided a fuel cell system comprising: a reformer for generating a hydrogen gas stream from fuel through a catalytic chemical reaction using thermal energy; and a stack for generating electric energy through a reaction between the hydrogen gas stream and oxygen. The reformer includes: a first reaction section for generating thermal energy through an oxidation reaction of fuel during start-up of the fuel cell system; a second reaction section which communicates with the first reaction section and which generates the hydrogen gas stream from the fuel through a reforming reaction using the thermal energy; and a third reaction section which communicates with the first and second reaction sections, and which generates thermal energy through an oxidation reaction of carbon monoxide contained in the hydrogen gas stream, thereby reducing the concentration of carbon monoxide in the hydrogen gas stream.Type: GrantFiled: June 23, 2005Date of Patent: December 7, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Ju-Yong Kim, Zin Park, Ji-Seong Han
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Patent number: 7799449Abstract: A fuel cell system includes a reformer that includes a plurality of reaction sections for generating hydrogen from hydrogen-containing fuel; a plurality of heating sections which supply thermal energy to the plurality of heating sections and which have a catalyst; and a main body receiving the plurality of reaction sections and the plurality of heating sections. The respective heating sections generate different amounts of thermal energy for the reactions of the respective reaction sections.Type: GrantFiled: September 16, 2005Date of Patent: September 21, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Zin Park, Ju-Yong Kim, Hyun-Jeong Lim, Ji-Seong Han, Eun-Suk Cho, Ho-Jin Kweon
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Patent number: 7763220Abstract: A fuel cell system includes: a reformer adapted to generate hydrogen from a fuel containing hydrogen through a chemical catalytic reaction using thermal energy; at least one electricity generator adapted to generate electric energy through an electrochemical reaction of hydrogen and oxygen; a fuel supply unit adapted to supply the fuel to the reformer; and an air supply unit adapted to supply oxygen to the reformer and the at least one electricity generator. The reformer includes a plurality of plates stacked with each other and forming at least one passage adapted to allow a fuel or a gas to flow therethrough and at least one catalyst layer coated on inner surfaces of the at least one passage. In the reformer, the at least one catalyst layer is formed to have a plurality of grooves extending substantially in a same direction as of the at least one passage.Type: GrantFiled: June 23, 2005Date of Patent: July 27, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Zin Park, Ju-Yong Kim, Hyun-Jeong Lim, Ji-Seong Han, Ho-Jin Kweon
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Patent number: 7758987Abstract: A fuel cell system includes at least one electricity generating element to generate electrical energy through an electrochemical reaction of hydrogen and oxygen, and a reaction source supplier adapted to connect to the electricity generating element and to provide a hydrogen-containing fuel and oxygen-containing air to the electricity generating element. The reaction source supplier includes a first divided region for storing compressed air, a second divided region for storing the fuel, and a storage region having an elastic partition adapted to divide the adjacent first and second divided regions.Type: GrantFiled: September 6, 2005Date of Patent: July 20, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Ju-Yong Kim, Hyun-Jeong Lim, Ji-Seong Han
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Patent number: 7749289Abstract: A fuel cell system includes: a reformer for generating hydrogen from hydrogen-containing fuel; at least one electricity generator for generating electric energy through an electrochemical reaction of hydrogen and oxygen; a fuel supply unit for supplying the fuel to the reformer; and an oxygen supply unit for supplying the oxygen to the reformer and the at least one electricity generator. The reformer includes: a plurality of reaction sections, wherein at least one of the reaction sections has a channel; at least one cover plate; and a bonding joint between two of the reaction sections and between the at least one of the reaction sections and the at least one cover plate to couple the at least one of the reaction sections and the at least one cover plate to each other.Type: GrantFiled: June 22, 2005Date of Patent: July 6, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Zin Park, Ju-Yong Kim, Hyun-Jeong Lim, Ji-Seong Han, Ho-Jin Kweon
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Reformer for fuel cell system, fabrication method therefor, and fuel cell system comprising the same
Patent number: 7740669Abstract: A reformer for a fuel cell system, a fabrication method thereof, and a fuel cell system are provided. The reformer includes a plurality of reaction substrates. The reaction substrates each have a reaction substrate body provided with a flow channel with micropores formed on the surface of the flow channel. In addition, a catalyst layer may be formed within the flow channel of the reaction substrate body. Since the reformer for a fuel cell system suggested in the present invention includes reaction substrates having micropores formed in the flow channel, it has a high specific surface area and high catalyst activity. Moreover, since the catalyst layer is formed by a deposition method, the reformer can be of a small proportion, occupying little space in the fuel cell system.Type: GrantFiled: May 6, 2005Date of Patent: June 22, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Jong-Ki Lee, Zin Park, Ju-Yong Kim, Ji-Seong Han -
Patent number: 7691509Abstract: A fuel cell system including: a reformer for generating hydrogen from a fuel containing hydrogen; at least one electricity generator for generating electric energy through an electrochemical reaction between hydrogen and oxygen; a fuel supply unit for supplying the fuel to the reformer; and an oxygen supply unit for supplying oxygen to the reformer and the electricity generator. Here, the reformer includes a plurality of plates stacked to form at least one passage for allowing a material selected from the group consisting of the fuel and a gas to flow therethrough, and at least one catalyst layer formed on entire surfaces of the at least one passage.Type: GrantFiled: June 22, 2005Date of Patent: April 6, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Ji-Seong Han, Ho-Jin Kweon, Ju-Yong Kim, Zin Park, Hyun-Jeong Lim
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Patent number: 7601186Abstract: A reformer of a fuel cell system is provided. The reformer includes a reforming reaction section constructed with a plurality of pipelines having independent internal spaces to generate hydrogen from a fuel, and a housing assembly surrounding the reforming reaction section to circulate the fuel around an outer surface of the reforming reaction section to preheat the fuel before it is supplied to the reforming reaction section.Type: GrantFiled: June 22, 2005Date of Patent: October 13, 2009Assignee: Samsung SDI Co., Ltd.Inventors: Ju-Yong Kim, Zin Park, Ji-Seong Han
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Publication number: 20080044690Abstract: Disclosed is a gas-liquid separator capable of allowing carbon dioxide to be exhausted to the atmosphere so as to recover and recycle only unreacted fuel discharged from an electric generator, and a fuel cell system having the same. The fuel cell system includes an electric generator to generate electricity by electrochemical reaction between hydrogen and oxygen, a fuel feeder to supply hydrogen containing fuel to the electric generator, an oxidant feeder to supply oxygen to the electric generator, and a recovering unit to recover unreacted fuel generated during the electrochemical reaction in the electric generator and supply the unreacted fuel to the fuel feeder. The recovering unit comprises a frame structure, and a gas-liquid separation film partially surrounding the frame structure. The gas-liquid separator forms a flow space inside the frame structure.Type: ApplicationFiled: August 17, 2007Publication date: February 21, 2008Inventors: Ji-Seong Han, Sung-Jin Kim
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Patent number: 7291424Abstract: A positive electrode for a lithium-sulfur battery includes a positive active material, a binder, a conductive agent, and a surfactant.Type: GrantFiled: May 6, 2003Date of Patent: November 6, 2007Assignee: Samsung SDI Co., Ltd.Inventors: Seok Kim, YongJu Jung, Ji-Seong Han, Jan-Dee Kim
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Publication number: 20070224094Abstract: There is provided a fuel cell system comprising a reformer for generating hydrogen from hydrogen-containing fuel and at least one electricity generator for generating electric energy through an electrochemical reaction of hydrogen and oxygen. The reformer includes a plurality of reaction sections for generating hydrogen from hydrogen-containing fuel; a plurality of heating sections which supply thermal energy to the plurality of heating sections and which have a catalyst; and a main body receiving the plurality of reaction sections and the plurality of heating sections. The respective heating sections generate different amounts of thermal energy necessary for the reactions of the respective reaction sections.Type: ApplicationFiled: September 16, 2005Publication date: September 27, 2007Inventors: Zin Park, Ju-Yong Kim, Hyun-Jeong Lim, Ji-Seong Han, Eun-Suk Cho, Ho-Jin Kweon
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Publication number: 20070082263Abstract: Disclosed is a binder for a lithium-sulfur battery including a butadiene-based copolymer. The binder exhibits chemical resistance to polysulfides, is stable a battery working temperatures, forms an emulsion in organic solvents and exhibits high adherence to positive active materials and electrodes used in the lithium-sulfur battery. The disclosed binder compositions, due to their high adherence to positive active materials allow for higher relative amounts of positive active materials to be used in the battery resulting in a high capacity lithium-sulfur battery.Type: ApplicationFiled: October 10, 2006Publication date: April 12, 2007Applicant: SAMSUNG SDI CO., LTD.Inventors: Seok Kim, Yongju Jung, Ji-Seong Han, Jan-Dee Kim
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Patent number: 7179563Abstract: Disclosed is a binder for a lithium-sulfur battery including a butadiene-based copolymer. The binder exhibits chemical resistance to polysulfides, is stable a battery working temperatures, forms an emulsion in organic solvents and exhibits high adherence to positive active materials and electrodes used in the lithium-sulfur battery. The disclosed binder compositions, due to their high adherence to positive active materials allow for higher relative amounts of positive active materials to be used in the battery resulting in a high capacity lithium-sulfur battery.Type: GrantFiled: July 9, 2003Date of Patent: February 20, 2007Assignee: Samsung SDI Co., Ltd.Inventors: Seok Kim, Yongju Jung, Ji-Seong Han, Jan-Dee Kim
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Patent number: 7147968Abstract: A positive electrode for a lithium-sulfur battery includes a positive active material including a sulfur-based compound, an electrically conductive material, an agent for increasing viscosity, and a binder. The agent is selected from a cellulose-based compound, an ionically conductive polymer, and a mixture thereof. The binder includes styrene-butadiene rubber.Type: GrantFiled: December 6, 2002Date of Patent: December 12, 2006Assignee: Samsung SDI Co., Ltd.Inventors: Ji-Seong Han, Su-Suk Choi, Seung-Hee Park, Yun-Suk Choi
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Publication number: 20060080833Abstract: A reformer for a fuel cell system, a fabrication method thereof, and a fuel cell system are provided. The reformer includes a plurality of reaction substrates. The reaction substrates each have a reaction substrate body provided with a flow channel with micropores formed on the surface of the flow channel. In addition, a catalyst layer may be formed within the flow channel of the reaction substrate body. Since the reformer for a fuel cell system suggested in the present invention includes reaction substrates having micropores formed in the flow channel, it has a high specific surface area and high catalyst activity. Moreover, since the catalyst layer is formed by a deposition method, the reformer can be of a small proportion, occupying little space in the fuel cell system.Type: ApplicationFiled: May 6, 2005Publication date: April 20, 2006Inventors: Jong-Ki Lee, Zin Park, Ju-Yong Kim, Ji-Seong Han
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Patent number: 7029796Abstract: A positive active material of a lithium-sulfur battery includes a sulfur-conductive agent-agglomerated complex in which a conductive agent particle is attached onto a surface of a sulfur particle having an average particle size less than or equal to 7 ?m. The sulfur-conductive agent-agglomerated complex is manufactured by mixing a sulfur powder and a conductive agent powder to form a mixture, and milling the mixture.Type: GrantFiled: April 3, 2003Date of Patent: April 18, 2006Assignee: Samsung SDI Co., Ltd.Inventors: Soo-Seok Choi, Yun-Suk Choi, Ji-Seong Han, Seung-Hee Park, Yong-Ju Jung, Il-Young Lee
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Publication number: 20060051262Abstract: A fuel cell system is provided comprising: a reformer for generating hydrogen from hydrogen-containing fuel; and at least one electricity generator for generating electric energy through an electrochemical reaction of hydrogen and oxygen. The reformer includes a main body in which a plurality of reaction sections for generating hydrogen from hydrogen-containing fuel is integrally formed. A heating section is disposed in contact with the main body in order to supply different amounts of thermal energy to the plurality of reaction sections.Type: ApplicationFiled: August 31, 2005Publication date: March 9, 2006Inventors: Zin Park, Ju-Yong Kim, Ji-Seong Han, Hyun-Jeong Lim, Eun-Suk Cho, Ho-Jin Kweon