Patents by Inventor Jun-Ho Sauk
Jun-Ho Sauk 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: 8318371Abstract: A fuel cell separator capable of improving stack performance by reducing the deviation in cell performance and diminishing dead space, and a fuel cell stack using the same are disclosed. The fuel cell separator may include a base member, a first channel group disposed on a surface of the base member and a second channel group disposed on the surface of the base member. The first channel group may include at least one channel and the second channel group may include at least one channel. The first channel group and the second channel group may extend parallel to each other in a first region of the surface and independent from each other in a second region of the surface.Type: GrantFiled: May 14, 2009Date of Patent: November 27, 2012Assignee: Samsung SDI Co., Ltd.Inventors: Young-Seung Na, Jun-Ho Sauk
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Patent number: 8133636Abstract: A fuel cell stack includes a membrane electrode assembly including an anode electrode, a cathode electrode, and an electrolyte membrane positioned between the anode electrode and the cathode electrode; a separator including a channel for a flow of fuel and oxidant and closely adhered to the membrane electrode assembly; and a gasket with a two-layer structure stacked between the separator and the membrane electrode assembly.Type: GrantFiled: February 20, 2008Date of Patent: March 13, 2012Assignee: Samsung SDI Co., Ltd.Inventors: Yeong-chan Eun, Seong-jin An, Jun-ho Sauk, Gill-tae Roh, Seok-rak Chang
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Patent number: 8053132Abstract: A cathode end plate for a breathable fuel cell stack including a first plate including a plurality of first openings and a second plate contacting one side of the first plate and including a plurality of second openings exposing two or more first openings of the plurality of first openings.Type: GrantFiled: March 27, 2008Date of Patent: November 8, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Gill-Tae Roh, Yeong-Chan Eun, Jun-Ho Sauk, Seong-Jin An, Seok-Rak Chang
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Patent number: 7807310Abstract: An end plate of an air breathing fuel cell stack and an air breathing fuel cell stack including the same. The air breathing fuel cell stack includes a membrane electrode assembly, including an anode electrode, a cathode electrode, and an electrolyte positioned between the anode electrode and the cathode electrode; and an end plate contacting the membrane electrode assembly. The end plate includes a first surface contacting the membrane electrode assembly, an opposing second surface; and a collector positioned at the first surface and contacting the cathode electrode.Type: GrantFiled: February 20, 2008Date of Patent: October 5, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Yeong-chan Eun, Jun-ho Sauk, Seong-jin An, Gill-tae Roh, Seok-rak Chang
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Patent number: 7776483Abstract: An activation method and system to selectively activate defective cells in a laminated fuel cell stack. The system includes a tank to store a polar solvent used to activate the cells; a body including a transfer unit to transfer the polar solvent to the fuel cell stack and a control unit to control the transfer unit; and a nozzle coupled to the body, to be inserted into an inlet manifold of the fuel cell stack. The nozzle has an opening positioned opposite to a channel inlet of at least one non-activated cell of the plurality of cells, to jet the polar solvent into only a channel of the non-activated cell, through the opening.Type: GrantFiled: December 22, 2008Date of Patent: August 17, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Jun-Ho Sauk, Young-Seung Na, Kyoung-Hwan Choi, Sang-Kyun Kang, Ji-Rae Kim
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Patent number: 7745043Abstract: A planar fuel cell stack, having generators that generate electricity by an electrochemical reaction of a fuel and an oxidizing agent, the generators arranged on a same plane. A beading unit and a protruding portion are formed on a fastening plate and a separator so as to improve structural stiffness thereof. Accordingly, the constituent elements of the stack are fastened with a substantially uniform conjoining pressure compared to a conventional planar stack, and the thickness of the stack of the present invention can be thinner than that of the conventional planar stack.Type: GrantFiled: February 27, 2008Date of Patent: June 29, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Gill-Tae Roh, Yeong-Chan Eun, Seong-Jin An, Seok-Rak Chang, Jun-Ho Sauk
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Publication number: 20090311562Abstract: An activation method and system to selectively activate defective cells in a laminated fuel cell stack. The system includes a tank to store a polar solvent used to activate the cells; a body including a transfer unit to transfer the polar solvent to the fuel cell stack and a control unit to control the transfer unit; and a nozzle coupled to the body, to be inserted into an inlet manifold of the fuel cell stack. The nozzle has an opening positioned opposite to a channel inlet of at least one non-activated cell of the plurality of cells, to jet the polar solvent into only a channel of the non-activated cell, through the opening.Type: ApplicationFiled: December 22, 2008Publication date: December 17, 2009Applicant: Samsung SDI Co., Ltd.Inventors: Jun-Ho Sauk, Young-Seung Na, Kyoung-Hwan Choi, Sang-Kyun Kang, Ji-Rae Kim
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Publication number: 20090291349Abstract: A fuel cell separator capable of improving stack performance by reducing the deviation in cell performance and diminishing dead space, and a fuel cell stack using the same are disclosed. The fuel cell separator may include a base member, a first channel group disposed on a surface of the base member and a second channel group disposed on the surface of the base member. The first channel group may include at least one channel and the second channel group may include at least one channel. The first channel group and the second channel group may extend parallel to each other in a first region of the surface and independent from each other in a second region of the surface.Type: ApplicationFiled: May 14, 2009Publication date: November 26, 2009Applicant: SAMSUNG SDI CO., LTDInventors: Young-Seung NA, Jun-Ho SAUK
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Publication number: 20080299440Abstract: A planar fuel cell stack, having generators that generate electricity by an electrochemical reaction of a fuel and an oxidizing agent, the generators arranged on a same plane. A beading unit and a protruding portion are formed on a fastening plate and a separator so as to improve structural stiffness thereof. Accordingly, the constituent elements of the stack are fastened with a substantially uniform conjoining pressure compared to a conventional planar stack, and the thickness of the stack of the present invention can be thinner than that of the conventional planar stack.Type: ApplicationFiled: February 27, 2008Publication date: December 4, 2008Inventors: Gill-Tae Roh, Yeong-Chan Eun, Seong-Jin An, Seok-Rak Chang, Jun-Ho Sauk
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Publication number: 20080280183Abstract: An end plate of an air breathing fuel cell stack and an air breathing fuel cell stack including the same. The air breathing fuel cell stack includes a membrane electrode assembly, including an anode electrode, a cathode electrode, and an electrolyte positioned between the anode electrode and the cathode electrode; and an end plate contacting the membrane electrode assembly. The end plate includes a first surface contacting the membrane electrode assembly, an opposing second surface; and a collector positioned at the first surface and contacting the cathode electrode.Type: ApplicationFiled: February 20, 2008Publication date: November 13, 2008Applicant: Samsung SDI Co., Ltd.Inventors: Yeong-chan Eun, Jun-ho Sauk, Seong-jin An, Gill-tae Roh, Seok-rak Chang
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Publication number: 20080274389Abstract: A cathode end plate for a breathable fuel cell stack including a first plate including a plurality of first openings and a second plate contacting one side of the first plate and including a plurality of second openings exposing two or more first openings of the plurality of first openings.Type: ApplicationFiled: March 27, 2008Publication date: November 6, 2008Inventors: Gill-Tae Roh, Yeong-Chan Eun, Jun-Ho Sauk, Seong-Jin An, Seok-Rak Chang
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Publication number: 20080254332Abstract: A fuel cell stack includes a membrane electrode assembly including an anode electrode, a cathode electrode, and an electrolyte membrane positioned between the anode electrode and the cathode electrode; a separator including a channel for a flow of fuel and oxidant and closely adhered to the membrane electrode assembly; and a gasket with a two-layer structure stacked between the separator and the membrane electrode assembly.Type: ApplicationFiled: February 20, 2008Publication date: October 16, 2008Applicant: Samsung SDI Co., Ltd.Inventors: YEONG-CHAN EUN, Seong-jin An, Jun-ho Sauk, Gill-tae Roh, Seok-rak Chang