Patents by Inventor Chang-Sin Yeo
Chang-Sin Yeo 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: 20230055592Abstract: A charging/discharging system to provide a direct current (DC) distribution based charging/discharging system for a battery formation process, in which a large number of batteries is connected in common to a DC grid through charge/discharge equipment, alternating current (AC) power from an AC power network is converted to DC power required for the battery formation process and the DC power is outputted to the DC grid is provided.Type: ApplicationFiled: November 11, 2021Publication date: February 23, 2023Applicant: LG ENERGY SOLUTION, LTD.Inventors: Hong-Kyun KIM, Ik-Jae LEE, Jong-Kwang SHIN, Tae-Wook AN, Chang-Sin YEO, Hee-Seung WANG, Chan-Hee LEE, Ji-Su HONG
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Publication number: 20230038456Abstract: A battery inspection apparatus capable of self-diagnosing failure is provided. The battery inspection apparatus includes a contact probe, a power supply module, a power cable for providing a path for supplying the power generated by the power supply module to the contact probe, a voltage measuring module, a measuring cable configured to measure a voltage of the contact probe by the voltage measuring module, a switching module configured to selectively connect the voltage measuring module to the power cable or the measuring cable, and a control module configured to determine whether at least one of the contact probe or the power cable is abnormal based on the voltage measurement value of the voltage measuring module according to a connection state of the switching module. A verification device capable of diagnosing failure of the battery inspection apparatus is also provided.Type: ApplicationFiled: October 18, 2021Publication date: February 9, 2023Applicant: LG ENERGY SOLUTION, LTD.Inventors: Chan-Hee LEE, Young-Seo KIM, Chang-Sin YEO, Sun-Woo LEE
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Patent number: 9444089Abstract: Disclosed herein is a mandrel configured to be used in a winding process for manufacturing a jelly roll type electrode assembly using a long sheet type stack of a cathode/separator/anode structure, wherein the mandrel is oval in a section perpendicular to a rotational central axis of the mandrel and is divided into a first mandrel part located at one side of a central region of the mandrel, in which an end of the sheet type stack is fixedly fitted, and a second mandrel part located at the other side of the central region of the mandrel, and the first mandrel part and the second mandrel part each include a main body part having a region in which the sheet type stack is fitted in an engaged state and an exchange part, detachably mounted to the main body part, having an end of a major axis of the mandrel.Type: GrantFiled: August 6, 2013Date of Patent: September 13, 2016Assignee: LG CHEM, LTD.Inventors: Jae Cheol Jeong, Hak Kyun Kim, Dong-Myung Kim, Sunhwan Kim, Chang Sin Yeo
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Patent number: 9160030Abstract: Disclosed herein is a mandrel configured to be used in a winding process for manufacturing a jelly roll type electrode assembly using a long sheet type stack of a cathode/separator/anode structure, wherein the mandrel is oval in a section perpendicular to a rotational central axis of the mandrel, a length ratio of a major axis to a minor axis of the mandrel being 1.5 or more, and a tilt of an outer side of the mandrel is continuously changed from an end of the minor axis of the mandrel to an end of the major axis of the mandrel in the section perpendicular to the rotational central axis of the mandrel.Type: GrantFiled: August 1, 2013Date of Patent: October 13, 2015Assignee: LG CHEM, LTD.Inventors: Jae Cheol Jeong, Hak Kyun Kim, Dong-Myung Kim, Sunhwan Kim, Chang Sin Yeo
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Publication number: 20130323556Abstract: Disclosed herein is a mandrel configured to be used in a winding process for manufacturing a jelly roll type electrode assembly using a long sheet type stack of a cathode/separator/anode structure, wherein the mandrel is oval in a section perpendicular to a rotational central axis of the mandrel and is divided into a first mandrel part located at one side of a central region of the mandrel, in which an end of the sheet type stack is fixedly fitted, and a second mandrel part located at the other side of the central region of the mandrel, and the first mandrel part and the second mandrel part each include a main body part having a region in which the sheet type stack is fitted in an engaged state and an exchange part, detachably mounted to the main body part, having an end of a major axis of the mandrel.Type: ApplicationFiled: August 6, 2013Publication date: December 5, 2013Applicant: LG CHEM, LTD.Inventors: Jae Cheol JEONG, Hak Kyun KIM, Dong-Myung KIM, Sunhwan KIM, Chang Sin YEO
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Publication number: 20130316206Abstract: Disclosed herein is a mandrel configured to be used in a winding process for manufacturing a jelly roll type electrode assembly using a long sheet type stack of a cathode/separator/anode structure, wherein the mandrel is oval in a section perpendicular to a rotational central axis of the mandrel, a length ratio of a major axis to a minor axis of the mandrel being 1.5 or more, and a tilt of an outer side of the mandrel is continuously changed from an end of the minor axis of the mandrel to an end of the major axis of the mandrel in the section perpendicular to the rotational central axis of the mandrel.Type: ApplicationFiled: August 1, 2013Publication date: November 28, 2013Applicant: LG CHEM, LTD.Inventors: Jae Cheol JEONG, Hak Kyun KIM, Dong-Myung KIM, Sunhwan KIM, Chang Sin YEO
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Patent number: 7479347Abstract: Disclosed herein is a prismatic battery having an electrode assembly mounted in a prismatic battery case, wherein an electrolyte injection hole formed in a base plate mounted to an open upper end of the battery case is constructed such that an inside upper end of the electrolyte injection hole is formed in a downward taper (incline) structure, and a metal ball is forcibly inserted into the electrolyte injection hole such that the metal ball is plastically deformed to seal the electrolyte injection hole. The prismatic battery according to the present invention provides high coupling force between the metal ball and the electrolyte injection hole due to the plastic deformation and forced insertion of the metal ball and high sealability of the electrolyte injection hole. Also, the formation of a groove at the upper end of the forcibly inserted metal ball and the generation of cracks at the interface between the metal ball and the inside surface of the electrolyte injection hole are effectively prevented.Type: GrantFiled: November 13, 2006Date of Patent: January 20, 2009Assignee: LG Chem, Ltd.Inventors: Chang-Sin Yeo, Sung Ryul Kwon, Hyunjin Kim, Seung Tae Lee, Jin-Woo Jeon
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Publication number: 20070264565Abstract: Disclosed herein is a prismatic battery having an electrode assembly mounted in a prismatic battery case, wherein an electrolyte injection hole formed in a base plate mounted to an open upper end of the battery case is constructed such that an inside upper end of the electrolyte injection hole is formed in a downward taper (incline) structure, and a metal ball is forcibly inserted into the electrolyte injection hole such that the metal ball is plastically deformed to seal the electrolyte injection hole. The prismatic battery according to the present invention provides high coupling force between the metal ball and the electrolyte injection hole due to the plastic deformation and forced insertion of the metal ball and high sealability of the electrolyte injection hole. Also, the formation of a groove at the upper end of the forcibly inserted metal ball and the generation of cracks at the interface between the metal ball and the inside surface of the electrolyte injection hole are effectively prevented.Type: ApplicationFiled: November 13, 2006Publication date: November 15, 2007Applicant: LG CHEM, LTD.Inventors: Chang-Sin YEO, Sung Ryul KWON, Hyunjin KIM, Seung Tae LEE, Jin-Woo JEON