Patents by Inventor Yeong Su Cho
Yeong Su Cho 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: 20240145790Abstract: A button-type secondary battery includes a lower can having a bottom surface; an upper can having a top, the upper can and the lower can being coupled to define a space therein; an electrolyte in the space; an electrode assembly in the space and including a negative electrode, a separator, and a positive electrode wound together; a gasket between the upper can and the lower can to electrically insulate the upper and lower cans; a top insulator that is electrically insulating and covering a top surface of the electrode assembly; and a bottom insulator that is electrically insulating and covering a bottom surface of the electrode assembly. The top and bottom insulators are each configured to expand in volume by absorbing the electrolyte. Surfaces of at least one of the top insulator and the bottom insulator are coated with a protective layer to prevent thermal shrinkage from occurring.Type: ApplicationFiled: October 14, 2022Publication date: May 2, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: Yeong Hun JUNG, Young Ji TAE, Joo Hwan SUNG, Min Su CHO, Geun Young PARK, Min Gyu KIM, Min Seon KIM, Sang Hak CHAE, Min Young JU
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Publication number: 20240128554Abstract: A button type secondary battery includes a wound electrode assembly; a lower can with the electrode assembly and an electrolyte in the lower can; a top plate to close the lower can; a positive electrode terminal coupled to the top plate through a gasket to be electrically insulated from the top plate with a portion of the positive electrode terminal passing through a hole in the top plate to be bonded to a positive electrode tab; a top insulator covering a top surface of the electrode assembly; and a bottom insulator covering a bottom surface of the electrode assembly. The top insulator and the bottom insulator are each configured to expand in volume by absorbing the electrolyte. Surfaces of at least one or more of the top insulator and the bottom insulator are coated with a protective layer configured to prevent thermal shrinkage from occurring.Type: ApplicationFiled: October 14, 2022Publication date: April 18, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: Yeong Hun JUNG, Young Ji TAE, Joo Hwan SUNG, Min Su CHO, Geun Young PARK, Min Gyu KIM, Min Seon KIM, Sang Hak CHAE, Min Young JU
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Patent number: 11322309Abstract: A tantalum capacitor includes: a tantalum body including tantalum, and having a tantalum wire in which a distance from a lower surface of the tantalum body is closer than a distance from an upper surface of the tantalum body; an insulating member on which the tantalum body is disposed; an encapsulation portion; an anode terminal including an upper anode and connected to the tantalum wire, a lower anode pattern, and an anode connection portion connecting the upper anode pattern and the lower anode pattern; and a cathode terminal including an upper cathode pattern and connected to the tantalum body, a lower cathode pattern disposed on a lower surface of the insulating member to be spaced apart from the lower anode pattern, and a cathode connection portion connecting the upper cathode pattern and the lower cathode pattern.Type: GrantFiled: May 22, 2020Date of Patent: May 3, 2022Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Hun Choi Jung, Wan Suk Yang, Tae Hun Kang, Yeong Su Cho
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Patent number: 11315738Abstract: A tantalum capacitor includes: a tantalum body having a tantalum wire exposed from one surface of the tantalum body; a molded portion including first and second surfaces opposing in a thickness direction, third and fourth surfaces opposing in a width direction, and fifth and sixth surfaces opposing in a longitudinal direction, the molded portion surrounding the tantalum body; an anode lead frame including an anode connection member and an anode terminal, which are connected to the tantalum wire, exposed through the second surface of the molded portion; and a cathode lead frame spaced apart from the anode lead frame, and exposed through the second surface of the molded portion, wherein end portions of the tantalum wire, the anode connection member, and the anode terminal in the longitudinal direction are on a same plane.Type: GrantFiled: May 18, 2020Date of Patent: April 26, 2022Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Hun Chol Jung, Wan Suk Yang, Yeong Su Cho
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Publication number: 20210183585Abstract: A tantalum capacitor includes: a tantalum body having a tantalum wire exposed from one surface of the tantalum body; a molded portion including first and second surfaces opposing in a thickness direction, third and fourth surfaces opposing in a width direction, and fifth and sixth surfaces opposing in a longitudinal direction, the molded portion surrounding the tantalum body; an anode lead frame including an anode connection member and an anode terminal, which are connected to the tantalum wire, exposed through the second surface of the molded portion; and a cathode lead frame spaced apart from the anode lead frame, and exposed through the second surface of the molded portion, wherein end portions of the tantalum wire, the anode connection member, and the anode terminal in the longitudinal direction are on a same plane.Type: ApplicationFiled: May 18, 2020Publication date: June 17, 2021Inventors: Hun Chol Jung, Wan Suk Yang, Yeong Su Cho
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Publication number: 20210159021Abstract: A tantalum capacitor includes: a tantalum body including tantalum, and having a tantalum wire in which a distance from a lower surface of the tantalum body is closer than a distance from an upper surface of the tantalum body; an insulating member on which the tantalum body is disposed; an encapsulation portion; an anode terminal including an upper anode and connected to the tantalum wire, a lower anode pattern, and an anode connection portion connecting the upper anode pattern and the lower anode pattern; and a cathode terminal including an upper cathode pattern and connected to the tantalum body, a lower cathode pattern disposed on a lower surface of the insulating member to be spaced apart from the lower anode pattern, and a cathode connection portion connecting the upper cathode pattern and the lower cathode pattern.Type: ApplicationFiled: May 22, 2020Publication date: May 27, 2021Inventors: Hun Chol JUNG, Wan Suk YANG, Tae Hun KANG, Yeong Su CHO
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Patent number: 9576741Abstract: The present invention relates to a solid electrolytic capacitor and a production method thereof. A solid electrolytic capacitor of the present invention includes: a capacitor element having an anode wire inserted in one side surface thereof; a cathode terminal disposed on one side under the capacitor element to be electrically connected to the capacitor element; an anode terminal disposed on the other side under the capacitor element and having a bending portion integrally formed to be inclined to the capacitor element for electrical connection with the anode wire; and a molding portion surrounding the outside of the capacitor element and formed to expose lower surfaces of the cathode terminal and the anode terminal.Type: GrantFiled: September 15, 2014Date of Patent: February 21, 2017Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Sung Ho Kwak, Hee Sung Choi, Hun Chol Jung, Yeong Su Cho, Sung Soo Cha, Hee Dong Myung, Jeong Oh Hong
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Patent number: 9236198Abstract: A chip-type electric double layer capacitor includes: a resin case having a housing space provided therein and formed of insulating resin; first and second external terminals inserted into the resin case by insert injection molding, each having a first portion exposed to an outer surface of the resin case for external contact and a second portion exposed to an inner surface of the housing space for internal contact; a sealing portion including a groove portion provided in the resin case along a circumference of at least one of the first and second external terminals and a resin filling the groove portion; and an electric double layer capacitor cell mounted in the housing space and electrically connected to the second portion of the first and second external terminals.Type: GrantFiled: April 29, 2014Date of Patent: January 12, 2016Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Chang Ryul Jung, Sung Ho Lee, Dong Sup Park, Hyun Chul Jung, Yeong Su Cho, Sang Kyun Lee
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Patent number: 9099251Abstract: The present invention relates to an energy storage apparatus capable of preventing performance degradation by reducing resistance during movement of charges between layers in a multilayer capacitor with very high capacity includes: a plurality of cathode layers for storing positive charges; a plurality of anode layers for storing negative charges; a plurality of separation layers for electrically separating the cathode layers and the anode layers; a cathode hole for introducing the positive charge into the cathode layer from the outside or discharging the positive charge from the cathode layer to the outside; an anode hole for introducing the negative charge into the anode layer from the outside or discharging the negative charge from the anode layer to the outside; a cathode conducting unit for moving the positive charge; and an anode conducting unit for moving the negative charge.Type: GrantFiled: March 15, 2013Date of Patent: August 4, 2015Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Sung Yeol Park, Yeong Su Cho
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Patent number: 9070513Abstract: A method of manufacturing a chip-type electric double layer capacitor, including: forming a lower case having an opened housing space and first and second external terminals buried therein, the first and second external terminals having first surfaces exposed to the housing space, respectively, and second surfaces exposed to an outer region of the lower case, respectively; mounting an electric double layer capacitor cell in the housing space such that the electric double layer capacitor cell is electrically connected to the first surfaces of the first and second external terminals exposed to the housing space; and mounting an upper cap on the lower case so as to cover the housing space.Type: GrantFiled: August 7, 2012Date of Patent: June 30, 2015Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Sang Kyun Lee, Chang Ryul Jung, Sung Ho Lee, Dong Sup Park, Yeong Su Cho, Hyun Chul Jung
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Publication number: 20150077904Abstract: A solid electrolytic capacitor of the present invention includes: a capacitor element having an anode wire inserted in one side surface thereof; a cathode terminal disposed on one side under the capacitor element to be electrically connected to the capacitor element; an anode terminal disposed on the other side under the capacitor element and having a bending portion integrally formed to be inclined to the capacitor element for electrical connection with the anode wire; and a molding portion surrounding the outside of the capacitor element and formed to expose lower surfaces of the cathode terminal and the anode terminal.Type: ApplicationFiled: September 15, 2014Publication date: March 19, 2015Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Sung Ho KWAK, Hee Sung CHOI, Hun Chol JUNG, Yeong Su CHO, Sung Soo CHA, Hee Dong MYUNG, Jeong Oh HONG
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Patent number: 8861183Abstract: An electric double layer capacitor includes an anode and a cathode. The anode includes an anode current collector, and a conductive layer and an anode active material layer, on the anode current collector. The cathode includes a cathode current collector and a cathode active material layer on the cathode current collector. The conductive layer includes a conductive material with electrical conductivity of 10?2 to 10?3 S/cm.Type: GrantFiled: June 5, 2012Date of Patent: October 14, 2014Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Chang Ryul Jung, Bae Kyun Kim, Yeong Su Cho, Hak Kwan Kim, Jun Hee Bae
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Publication number: 20140233155Abstract: A chip-type electric double layer capacitor includes: a resin case having a housing space provided therein and formed of insulating resin; first and second external terminals inserted into the resin case by insert injection molding, each having a first portion exposed to an outer surface of the resin case for external contact and a second portion exposed to an inner surface of the housing space for internal contact; a sealing portion including a groove portion provided in the resin case along a circumference of at least one of the first and second external terminals and a resin filling the groove portion; and an electric double layer capacitor cell mounted in the housing space and electrically connected to the second portion of the first and second external terminals.Type: ApplicationFiled: April 29, 2014Publication date: August 21, 2014Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Chang Ryul JUNG, Sung Ho Lee, Dong Sup Park, Hyun Chul Jung, Yeong Su Cho, Sang Kyun Lee
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Publication number: 20140168853Abstract: Disclosed herein is a super capacitor including: an electrode assembly; a pouch cell enclosing an outer peripheral surface of the electrode assembly; a resin case molding the pouch cell; and a lead wire of which one side is electrically connected to the electrode assembly and the other side exposed to the outside of the resin case is bonded to an outer peripheral surface of the resin case. According to the present invention, the super capacitor may have durability against external impact, and cycle life characteristics of the super capacitor may be significantly improved.Type: ApplicationFiled: March 15, 2013Publication date: June 19, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jae Hoon Choi, Yeong Su Cho, Eun Sil Kim, Se Woong Paeng, Bae Kyun Kim, Ji Sung Cho
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Publication number: 20140168854Abstract: Disclosed herein are an electrode structure and an energy storage apparatus including the same, the electrode structure including: a first current collector having a flat plate structure; second current collectors stacked on the first current collector and having a mesh structure; and active material layers formed on the first and second current collectors.Type: ApplicationFiled: December 9, 2013Publication date: June 19, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Bae Kyun KIM, Eun Sil KIM, Se Woong PAENG, Yeong Su CHO, Jae Hoon CHOI
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Publication number: 20130286543Abstract: The present invention relates to an energy storage apparatus capable of preventing performance degradation by reducing resistance during movement of charges between layers in a multilayer capacitor with very high capacity includes: a plurality of cathode layers for storing positive charges; a plurality of anode layers for storing negative charges; a plurality of separation layers for electrically separating the cathode layers and the anode layers; a cathode hole for introducing the positive charge into the cathode layer from the outside or discharging the positive charge from the cathode layer to the outside; an anode hole for introducing the negative charge into the anode layer from the outside or discharging the negative charge from the anode layer to the outside; a cathode conducting unit for moving the positive charge; and an anode conducting unit for moving the negative charge.Type: ApplicationFiled: March 15, 2013Publication date: October 31, 2013Inventors: Sung Yeol PARK, Yeong Su CHO
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Publication number: 20130128412Abstract: The present invention relates to an electrode for an energy storage and a method for manufacturing the same and provides a useful effect of improving resistance characteristics of an electrode for an energy storage and strengthening adhesion by forming trenches of predetermined dimensions on a surface of a current collector, forming a conductive layer, which includes a conductive agent as much as possible, on the surface of the current collector, and forming a bonding layer including an active material, a conductive agent, and a binder and an electrode layer including an active material and a binder on the conductive layer.Type: ApplicationFiled: March 1, 2012Publication date: May 23, 2013Inventors: Jun Hee Bae, Bae Kyun Kim, Ho Jin Yun, Yeong Su Cho, Chang Ryul Jung, Hak Kwan Kim
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Publication number: 20130100580Abstract: The present invention relates to an electric double layer capacitor including electrodes using a cathode current collector and an anode current collector with different thicknesses. According to the present invention, the cathode current collector is formed to be relatively thin compared to the anode current collector so that an electrode structure has the two electrode current collectors with different thicknesses. Therefore, it is possible to minimize capacity reduction compared to conventional methods and improve energy density of a cell by improving a withstand voltage of the cell.Type: ApplicationFiled: June 4, 2012Publication date: April 25, 2013Inventors: Chang Ryul Jung, Bae Kyun Kim, Ho Jin Yun, Hak Kwan Kim, Yeong Su Cho
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Publication number: 20130100581Abstract: The present invention relates to an electric double layer capacitor including: an anode formed by applying a conductive layer and an anode active material layer on an anode current collector; and a cathode including a cathode active material layer on a cathode current collector. According to the present invention, resistance of the anode is reduced through a change of the electrode structure of the cathode and the anode by applying the conductive layer on the anode current collector and applying the anode active material on the conductive layer. Therefore, it is possible to minimize capacity reduction compared to conventional methods and improve energy density of a cell by improving a withstand voltage of the cell.Type: ApplicationFiled: June 5, 2012Publication date: April 25, 2013Inventors: Chang Ryul Jung, Bae Kyun Kim, Yeong Su Cho, Hak Kwan Kim, Jun Hee Bae
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Publication number: 20130100582Abstract: The present invention relates to an electric double layer capacitor in which particle sizes of a cathode active material and an anode active material are different from each other, and a difference in the particle size between the cathode active material and the anode active material is 3 to 10 ?m; or conductive agent contents in electrode active material compositions of a cathode and an anode are different from each other, and a difference in the conductive agent content between the electrode active material compositions of the cathode and the anode is 5 to 25 wt %.Type: ApplicationFiled: June 19, 2012Publication date: April 25, 2013Inventors: Chang Ryul Jung, Jun Hee Bae, Ho Jin Yun, Bae Kyun Kim, Yeong Su Cho