Patents by Inventor Oh-young Hyun
Oh-young Hyun 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: 9269937Abstract: Disclosed are a separator for a battery, which comprises a gel polymer layer formed on a substrate, the gel polymer layer including a plurality of three-dimensional open pores interconnected with each other, and an electrochemical device comprising the same separator. Also, disclosed is a method for preparing the gel polymer layer including a plurality of three-dimensional open pores interconnected with each other on a substrate.Type: GrantFiled: June 22, 2012Date of Patent: February 23, 2016Assignees: LG Chem, Ltd., Toray Battery Seperator Film Co., Ltd.Inventors: Je-Young Kim, Pil-Kyu Park, Soon-Ho Ahn, Ki-Chul Hong, Oh Young Hyun
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Patent number: 8709642Abstract: Disclosed herein is a method of locating a plurality of full cells constructed in a cathode/separator/anode structure, as basic units, on a separator sheet having a continuous length, further locating a unit electrode or a bi-cell on the separator sheet, and winding the full cells and unit electrode or the bi-cell to continuously manufacture a stacking/folding type electrode assembly constructed in a structure in which anodes are located at the outermost electrodes forming the outside of the electrode assembly, respectively, wherein the method including a step of continuously supplying a cathode sheet, an anode sheet, a first separator sheet, and a second separator sheet, to manufacture the unit cells, successively arranging the unit cells on the second separator sheet from a first stage to an nth stage, and winding the unit cells, a step of arranging cathode tabs and anode tabs at the respective stages, while the cathode tabs and the anode tabs are opposite to each other, and arranging electrode tabs havingType: GrantFiled: July 2, 2008Date of Patent: April 29, 2014Assignee: LG Chem, Ltd.Inventors: Kyong Won Kang, Hyang Mok Lee, Byungjin Choi, Eunyoung Goh, Sung-Min Hwang, Oh Young Hyun, Chang bum Ahn, Hyun-Chul Jung, Wooyong Lee
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Patent number: 8669003Abstract: Disclosed herein is a secondary battery having an electrode assembly constructed in a structure in which a plurality of electrodes are stacked, while separators are disposed respectively between the electrodes, and electrode taps of the electrodes are connected with each other, the electrode assembly being mounted in a battery case, wherein regions where the electrode taps are coupled to electrode leads (electrode tap-electrode lead coupling regions) are located at an upper-end contact region of the battery case, and the contact region is bent in the thickness direction of the battery, whereby the electrode assembly is separated from an inner space of the battery case.Type: GrantFiled: March 28, 2007Date of Patent: March 11, 2014Assignee: LG Chem, Ltd.Inventors: Byungjin Choi, Hyang Mok Lee, Chang bum Ahn, Wooyong Lee, Sung-Min Hwang, Oh Young Hyun
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Patent number: 8574736Abstract: Disclosed herein are a hybrid type electrode assembly including a plurality of electrode groups that can be charged and discharged, wherein the respective electrode groups are constructed in a structure in which a cathode and an anode are opposite to each other while a separator is disposed between the cathode and the anode, and at least one of the electrode groups is a capacitor type electrode group, and a secondary battery including the same. In the hybrid type electrode assembly according to the present invention, a coupled system of a capacitor and a secondary battery is embodied in a single cell through a simplified manufacturing process. Consequently, the present invention has the effect of reducing the manufacturing costs of the battery cell and improving the pulse charge and discharge characteristics without the degeneration of capacity.Type: GrantFiled: July 27, 2007Date of Patent: November 5, 2013Assignee: LG Chem, Ltd.Inventors: Hyang Mok Lee, Oh Young Hyun, Kiwoong Kim, Sung-Mok Lim
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Publication number: 20130011549Abstract: Disclosed are a separator for a battery, which comprises a gel polymer layer formed on a substrate, the gel polymer layer including a plurality of three-dimensional open pores interconnected with each other, and an electrochemical device comprising the same separator. Also, disclosed is a method for preparing the gel polymer layer including a plurality of three-dimensional open pores interconnected with each other on a substrate.Type: ApplicationFiled: June 22, 2012Publication date: January 10, 2013Applicant: LG CHEM, LTD.Inventors: Je-Young Kim, Pil-Kyu Park, Soon-Ho Ahn, Ki-Chul Hong, Oh Young Hyun
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Patent number: 8304105Abstract: Provided is a cell wherein out of electrodes constituting the cell, the outermost two electrodes are both cathodes, cathode current collectors of the cathodes are single-side coated with cathode active materials on the first surfaces thereof, other sides of cathode current collectors non-coated with cathode active materials are disposed toward the outside of a cell assembly and the thickness of cathode current collectors is 70 to 150% of that of the cathode active material coated layer. The cell in accordance with the present invention exhibits excellent safety in a nail penetration test.Type: GrantFiled: November 19, 2004Date of Patent: November 6, 2012Assignee: LG Chem, Ltd.Inventors: Hee Gyoung Kang, Hyang Mok Lee, Oh young Hyun, Chang bum Ahn
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Publication number: 20100075210Abstract: Disclosed herein are a hybrid type electrode assembly including a plurality of electrode groups that can be charged and discharged, wherein the respective electrode groups are constructed in a structure in which a cathode and an anode are opposite to each other while a separator is disposed between the cathode and the anode, and at least one of the electrode groups is a capacitor type electrode group, and a secondary battery including the same. In the hybrid type electrode assembly according to the present invention, a coupled system of a capacitor and a secondary battery is embodied in a single cell through a simplified manufacturing process. Consequently, the present invention has the effect of reducing the manufacturing costs of the battery cell and improving the pulse charge and discharge characteristics without the degeneration of capacity.Type: ApplicationFiled: July 27, 2007Publication date: March 25, 2010Applicant: LG CHEM, LTD.Inventors: Hyang Mok Lee, Oh Young Hyun, Kiwoong Kim, Sung-Mok Lim
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Publication number: 20100055558Abstract: Disclosed herein is a secondary battery having an electrode assembly constructed in a structure in which a plurality of electrodes are stacked, while separators are disposed respectively between the electrodes, and electrode taps of the electrodes are connected with each other, the electrode assembly being mounted in a battery case, wherein regions where the electrode taps are coupled to electrode leads (electrode tap-electrode lead coupling regions) are located at an upper-end contact region of the battery case, and the contact region is bent in the thickness direction of the battery, whereby the electrode assembly is separated from an inner space of the battery case.Type: ApplicationFiled: March 28, 2007Publication date: March 4, 2010Applicant: LG Chem, Ltd.Inventors: Byungjin Choi, Hang Mok Lee, Chang Bum Ahn, Wooyong Lee, Sung-Min Hwang, Oh Young Hyun
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Publication number: 20090311589Abstract: Disclosed are a separator for a battery, which comprises a gel polymer layer formed on a substrate, the gel polymer layer including a plurality of three-dimensional open pores interconnected with each other, and an electrochemical device comprising the same separator. Also, disclosed is a method for preparing the gel polymer layer including a plurality of three-dimensional open pores interconnected with each other on a substrate.Type: ApplicationFiled: April 25, 2007Publication date: December 17, 2009Applicant: LG Chem, Ltd.Inventors: Je-Young Kim, Pil-Kyu Park, Soon-Ho Ahn, Ki-Chul Hong, Oh Young Hyun
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Patent number: 7595132Abstract: The present invention provides a battery having a structure for increasing the power storage capacity and output thereof In accordance with the present invention, in a battery comprising an electrode assembly including anode plates, cathode plates and separators; and a battery case, both side bonding portions of which are folded toward adjacent sides thereof, for accommodating the electrode assembly and a designated amount of electrolyte, and sealing the electrode assembly such that two electrode terminals connected to corresponding electrode taps of the anode and cathode plates of the electrode assembly are exposed to the outside, an upper bonding portion of the battery case is folded toward the upper end of the battery case, and/or common portions of the upper bonding portion and both side portions of the battery case are cut off, and/or inner corners corresponding to the upper bonding portion have larger radiuses of curvature, and/or receipt portions for receiving the electrode assembly are respectively foType: GrantFiled: January 27, 2005Date of Patent: September 29, 2009Assignee: LG Chem, Ltd.Inventors: Hee Gyoung Kang, Hyang Mok Lee, Oh Young Hyun, Chang bum Ahn, Sung-Min Hwang
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Patent number: 6455192Abstract: A battery case for enclosing and hermetically sealing a battery body which generates current. The case includes a first polyethylene terephthalate layer, which is an innermost layer with respect to a battery body, which is adhered to another part of the same layer when sealing the battery body, a polymer layer on the first polyethylene terephthalate layer, a second polyethylene terephthalate layer on the polymer layer, and a polypropylene layer, which is an outermost layer with respect to the battery body, on the second polyethylene terephthalate layer. Therefore, short circuits generated during adhesion between edges of upper and lower portions of the case can be prevented, improving the case sealing process. Also, the deterioration of battery performance, due to a micro short circuit occurring during the sealing of the case, can be avoided. Further, the case sealing process can be safely performed, irrespective of conditions of thermal fusion such as temperature, pressure, and time.Type: GrantFiled: October 26, 2000Date of Patent: September 24, 2002Assignee: Samsung SDI Co., Ltd.Inventors: Yoon-han Chang, Oh-young Hyun